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CIRCUIT ANALYSIS
Q1
Which changes the world
(a) Social sciences
(b) Medical sciences
(c) Engineering
(d) Agriculture
Q2
Who invented battery?
(a) Volta
(b) Ohm
(c) Faraday
(d) Ampere
Q3
First battery was invented in
(a) 1800
(b) 1796
(c) 1900
(d) 2000
Q4
Who defined the electric current first?
(a) Ampere
(b) Ohm
(c) Faraday
(d) Columbus1
Q5
Who developed the method to measure electric current first
(a) Ampere
(b) Ohm
(c) Faraday
(d) Lenz
Q6
Who invented the electromagnet first?
(a) Ohm
(b) Faraday
(c) Lenz
(d) Ampere
Q7
Who invented the first ammeter?
(a) Ohm
(b) Faraday
(c) Lenz
(d) Ampere
Q8
The theories on which all branches of Electrical Engineering are built are
(a) Electromagnetic theory
(b) Electric circuit theory
(c) Both A & B
(d) None of above
Q9
The branches of Electrical Engineering which are based on circuit theory are
(a) Power, electric machines , control
(b) Electronics, Communication & instrumentation
(c) Both A & B5 `+- ------------------
(d) None
Q10
An excellent starting point for a student of Electrical Engineering is
(a) Basic circuit theory
(b) Basic electronics
(c) Basic Electrical Engineering
(d) Basic magnetic theory
Q11
An electric circuit is
(a) Inter connection of electrical devices
(b) Inter connection of magnetic devices
(c) Inter connection of mechanical devices
(d) None
Q12
Examples of a simple electric circuit is
(a) Torch
(b) Search light
(c) Both A & B
(d) None
Q13
By the analysis of a circuit mean
(a) Study of behavior of circuit
(b) How does it respond to a given input
(c) Interaction of elements & devices
(d) All above
Q14
`Some basic concepts in electric theory are
(a) Charge, Voltage, Circuit elements
(b) Power & energy
(c) Both A & B
(d) None
Q15
SI is
(a) An international measurement language
(b) International system of units
(c) Both A & B
(d) None
Q16
The basic SI units are
(a) Meter, kg , second
(b) Ampere m Kevin , candela
(c) Both A & B
(d) None
Q17
The prefix E (10 raised to the power 18) is called
(a) Exa
(b) Peta
(c) Tetra
(d) Giga
Q18
The prefix P(10 raised to the power 15)is called
(a) Exa
(b) Peta
(c) Tera
(d) Giga
Q19
The prefix T (10 raised to the power 12)is called
(a) Exa
(b) Peta
(c) Tera
(d) Giga
Q20
The prefix G (10 raised to the power 9) is called
(a) Exa
(b) Peta
(c) Tera
(d) Giga
Q21
The prefix M (10 raised to the power 6) is called
(a) Mega
(b) Kilo
(c) Hecto
(d) Deka
Q22
The prefix K (10 raised to the power 3)is called
(a) Mega
(b) Kilo
(c) Hecto
(d) Deka
Q23
The prefix h (10 raised to the power 2) is called
(a) Mega
(b) Kilo
(c) Hecto
(d) Deka
Q24
The prefix da (10 raised to the power 1) is called
(a) Mega
(b) Kilo
(c) Hecto
(d) Deka
Q25
The prefix d ( 10 raised to the power -1) is called
(a) Deci
(b) Centi
(c) Milli
(d) Micro
Q26
The prefix c(10 raised to the power -2) is called
(a) Deci
(b) Centi
(c) Milli
(d) Micro
Q27
The prefix m(10 raised to the power -3) is called
(a) Deci
(b) Centi
(c) Milli
(d) Micro
Q28
The prefix n(10 raised to the power -6) is called
(a) Deci
(b) Centi
(c) Milli
(d) Micro
Q29
The prefix n(10 raised to the power -9) is called
(a) Nana ]
(b) Pice
(c) Femto
(d) Atto
Q30
The prefix p (10 raised to the power -12) is called
(a) Nana
(b) Pico
(c) Femto
(d) Atto
Q31
The prefix f (10 raised to the power -15) is called
(a) Nana
(b) Pico
(c) Femto
(d) Atto
Q32
The prefix a (10 raised to the power -18) is called
(a) Nana
(b) Pico
(c) Femto
(d) Atto
Q33
The most basic quantity in electric circuit is
(a) Change
(b) Current
(c) Voltage
(d) Power
Q34
The charge is
(a) Property of charged particle
(b) Property of magnetic particle
(c) Property of neutron particle
(d) None
Q35
The matter is made of fundamental building blocks known as
(a) Molecules
(b) Atoms
(c) Neutrons
(d) Protons
Q36
An atom consists of
(a) Electrons
(b) Protons
(c) Neutron
(d) All above
Q37
Charge on electron is
(a) Negative
(b) 1.602 x 10 (raised to power )-19 c
(c) Both A & B
(d) None
Q38
Charge on proton is
(a) Positive
(b) 1.602 x 10 (raised to power)-19c
(c) Both A & B
(d) None
Q39
Charge on neutron is
(a) +Ve
(b) –Ve
(c) Zero
(d) 1.602 x 10 (raised to power) -19 c
Q40
The coulomb is
(a) Large unit of charge
(b) Large unit of current
(c) Large unit of voltage
(d) None
Q41
A coulomb has
(a) Charge of 6.24 x 10 (raised to power)18 electrons
(b) Charge of 1.602 x 10 (raised to power)-19
(c) Both A & B
(d) None
Q42
Law of conservation of charge is
(a) Charge can neither be created mor destroyed
(b) Only transferred
(c) Both A & B
(d) None
Q43
Due to conservation
(a) Algebric sum of charges is zero
(b) Vector sum of charges is zero
(c) Both A & B
(d) None
Q44
A unique feature of electric charge is
(a) That it is static
(b) That it is mobile
(c) That it is dynamic
(d) None
Q45
The motion of charge create
(a) Current
(b) Voltage
(c) Ampere
(d) Volta
Q46
An electric current is
(a) Time rate of change of charge
(b) Measured in amperes
(c) Both A & B
(d) None
Q47
A direct current is
(a) That remain constant with time
(b) Do not change direction
(c) Both A & B
(d) None
Q48
An alternating current is
(a) That varies sinusoidally with time
(b) Change direction at regular interval
(c) Both A & B
(d) None
Q49
How much charge is represented by 100 electrons
(a) 1.602 x 10 (raised to power) -19 c
(b) 1.602 x 10 (raised to power) -17 c
(c) 1.602 x 10 (raised to power) -17 c
(d) None
Q50
Charge on two millions protons is
(a) + 3.204 x 10 (raised to power) -13
(b) - 3.204 x 10 (raised to power) -13
(c) 1.602 x 10 (raised to power) -19
(d) None
Q51
An e.m.f is also known as
(a) Voltage
(b) Potential difference
(c) Both A & B
(d) None
Q52
Voltage is
(a) Energy required to move a unit charge through an element
(b) Measured in volts
(c) Both A & B
(d) None
Q53
Keep in mind that electric current is
(a) Always through an element
(b) Always across an element
(c) Always through / across an element
(d) None
Q54
Keep in mind that voltage is
(a) Always through an element
(b) Always across an element
(c) Always through / across an element
(d) None
Q55
Power is
(a) Time rate of expending energy
(b) Measured in watts
(c) Both A & B
(d) None
Q56
Power in D.C circuit is
(a) VI
(b) I.I.R
(c) V.V / R
(d) All above
Q57
Conservation of energy dictates that
(a) Algebric sums of powers is zero
(b) Algebric sums of powers is –Ve
(c) Algebric sums of powers is +Ve
(d) None
Q58
Energy is
(a) Capacity to do work
(b) Measured in joules
(c) Both A & B
(d) None
Q59
Types of elements in electric circuits are
(a) Passive
(b) Active
(c) Both A & B
(d) None
Q60
An active element is capable of
(a) Generating energy
(b) Absorbing energy
(c) Dissipating energy
(d) Stering energy
Q61
A pussive element is incapable of
(a) Generating energy
(b) Absorbing / Disspating / Storing energy
(c) Both A & B
(d) None
Q62
An ideal independent is
(a) An active element
(b) Provides a specified voltage / current
(c) Both A & B
(d) None
Q63 The most important active elements are
(a) Voltage sources
(b) Current
(c) Both A & B
(d) None
Q64
Types of sources are
(a) Dependent
(b) Independent
(c) Both A & B
(d) None
Q65
An ideal dependent source is
(a) An active element
(b) Source quanity is controlled by another voltage / current
(c) Both A & B
(d) None
Q66
Types of dependent sources are
(a) VC VS , CCVS
(b) VCCS , CCCS
(c) Both A & B
(d) None
Q67
VCVS is
(a) A voltage controlled voltage source
(b) A current controlled voltage source
(c) A voltage controlled current source
(d) A current controlled voltage source
Q68
CCVS is
(a) A voltage controlled voltage source
(b) A current controlled voltage source
(c) A voltage controlled current source
(d) A current controlled voltage source
Q69
VCCS is
(a) A voltage controlled voltage source
(b) A current controlled voltage source
(c) A voltage controlled current source
(d) A current controlled voltage source
Q70
CCCS is
(a) A voltage controlled voltage source
(b) A current controlled voltage source
(c) A voltage controlled current source
(d) A current controlled voltage source
Q71
Ohm’s laws was invented in ohm in
(a) 1826
(b) 1926
(c) 1726
(d) 2000
Q72
Ohm’s law relates
(a) Voltage & current
(b) Charge & current
(c) Energy & Power
(d) None
Q73
Resistance is
(a) The physical property of material
(b) Ability to resist current
(c) Both A & B
(d) None
Q74
The resistance of a material depend upon
(a) Cross - rectional area
(b) Length
(c) Both A & B
(d) None
Q75
Units of resistivity are
(a) Ohm – meter
(b) Ohm – grams
(c) Ohm - inches
(d) Ohm – fit
Q76
The resistance is measured in
(a) Ohm's
(b) Amperes
(c) Volts
(d) Grams
Q77
At short circuit
(a) V = o
(b) I = large
(c) R = o
(d) All above
Q78
A short circuit is
(a) A circuit element with resistance approaching zero
(b) A circuit element with resistance approaching infinity
(c) Both A & B
(d) None
Q79
An open circuit is
(a) A circuit element with resistance approaching zero
(b) A circuit element with resistance approaching infinity
(c) Both A & B
(d) None
Q80
A resistor is
(a) Fixed
(b) Variable
(c) Both A & B
(d) None
Q81
Fixed resistor is
(a) Wire wound
(b) Composition
(c) Both A & B
(d) None
Q82
Potentiometer is
(a) Variable resistor
(b) Fixed resistor
(c) Contact resistor
(d) None
Q83
Variable resistor is
(a) Wire wound
(b) Composition
(c) Both A & B
(d) None
Q84
Every resistor
(a) Obey ohm's law
(b) Do not obey ohm's law
(c) Obey linear law
(d) None of above
Q85
A resistor that do not obey ohm's law is
(a) Linear resistor
(b) Non-linear resistor
(c) Constant resistor ]
(d) None
Q86
Examples of non-linear resistor are
(a) Light bulle
(b) Diode
(c) Both A & B
(d) None
Q87
Conductance is
(a) Reciprocal of resistance
(b) Reciprocal of surceptance
(c) Reciprocal of impedance
(d) None of above
Q88
Units of conductance are
(a) Mhos
(b) Siemens
(c) Both A & B
(d) None
Q89
A resistor
(a) Absorb power
(b) Dissipate power
(c) Waste power
(d) All above
Q90
A network is
(a) An interconnection of elements
(b) An interconnection of devices
(c) An interconnection of elements / devices
(d) All above
Q91
A circuit is
(a) A network
(b) Provides one or more closed paths
(c) Both A & B
(d) None
Q92
Network topology is
(a) Study of placement of elements in the network
(b) Geometric configuration of network
(c) Both A & B
(d) None of above
Q93
A branch of network is
(a) Single element
(b) Resistor
(c) Voltage source
(d) All above
Q94
A node in a network is
(a) Point of connection of two or more branches
(b) Junction of two or more branches
(c) Both A & B
(d) None of above
Q95
A loop in a network is
(a) Closed path
(b) Open path
(c) Circular path
(d) None
Q96
Two or more elements are in series if
(a) They are cascaded
(b) Connected sequentially
(c) Carry same current
(d) All above
Q97
Two or more elements are in parallel if
(a) They are connected to the same node
(b) Have same voltage
(c) Both A & B
(d) None
Q98
Kirchhoff's current law states
(a) Algebraic sum of currents entering a node in zero
(b) Algebraic sum of currents entering a closed boundary is zero
(c) Both A & B
(d) None
Q99
Kirchhoff's voltage law states that
(a) Algebraic sum of all voltages around a closed path is zero
(b) Algebraic sum of all voltages around a loop path is zero
(c) Both A & B None
Q100
The equivalent resistance of two parallel resistors is
(a) Equal to the product of their resistances divided by their sum
(b) Equal to the product of their resistances divided by their difference
(c) [R1 + R2] / R
(d) None of above
Q101
Conductances in parallel behave
(a) As single conductance
(b) Equivalent is sum of individual conductances
(c) Both A & B
(d) None of above
Q102
The current is shared by resistors
(a) In inverse proportion of their resistances
(b) In direct proportion of their resistances
(c) In equal proportion of their resistances
(d) None of above
Q103
WYE-DELTA transformation is
(a) Network reduction technique
(b) Network expansion technique
(c) Network solution technique
(d) None of above
Q104
Each resistor in the y-network is
(a) The product of the resistors in the two adjacent delta branches divided by
sum of three delta resistors
(b) The product of the resistors in the two adjacent delta branches devided by
difference of three delta resistors
(c) The sum of resistors in the two adjucent delta branches divided the sum of
three delta resistors
(d) None of above
Q105
Each resistor in the delta network is
(a) The sum of all possible products of y resistors taken two at atime, divided
by opposite y resistor
(b) The difference of all possible products of y resistors taken two at a time,
divided by opposite y resistor
(c) The sum of all possible products of y resistor taken two at a time,
multiplied by opposite y resistors.
(d) None of above
Q106
Resistors are often used
(a) To model devices that convert electrical energy to heat
(b) To model devices that convert electrical energy to manyforms of energy
(c) Both A & B
(d) None of above
Q107
A potentiometer is a
(a) Three terminal device
(b) Device operates on principle of voltage division
(c) Adjustable voltage divider
(d) All above
Q108
Potentiometer is
(a) A voltage regulator
(b) Used as volume control in radio
(c) Used as level control in radio
(d) All above
Q109
An instrument capable of measuring voltage / current/ impedance is
(a) Multimeter
(b) Volt-ohm meter
(c) Vom
(d) All above
Q110
A load is a component that
(a) Recieve energy
(b) Is energy sink
(c) Both A & B
(d) None
Q111
A generator is
(a) Energy source
(b) Supply energy
(c) Both A & B
(d) None
Q112
Reciprocal of resistance is
(a) Voltage
(b) Current
(c) Conductance
(d) Coulombs
Q113
An electric heater draws 10A from 120v source the resistance of heater is
(a) 120 ohm
(b) 1200 ohm
(c) 12 ohm
(d) 1.2 ohm
Q114
Voltage drop across a 1.5 kw toaster that draws 12A current is]
(a) 18 kv
(b) 125 v
(c) 120 v
(d) 10.42 v
Q115
The maximum current that 2w,80 kohm resistor can safely conduct is
(a) 160 ka
(b) 40 ka
(c) 5 Ma
(d) 25 micro – Ampere
Q116
The two power techniques of circuit analysis are
(a) Nodal analysis
(b) Mesh analysis
(c) Both A & B
(d) None
Q117
The nodal analysis is based on
(a) Kirchhoff's current law
(b) Kirchhoff's voltage law
(c) Ohm's law
(d) None
Q118
Mesh analysis is based on
(a) Kirchhoff's current law
(b) Kirchhoff's voltage law
(c) Ohm's law
(d) None
Q119
Nodal analysis uses
(a) Node voltage as circuit variable
(b) Element voltage as circuit variable
(c) Individual voltage as circuit variable
(d) None
Q120
Steps to determine node voltage are
(a) Select a node as reference & assign voltages to other nodes
(b) Apply kcl to each non reference node
(c) Solve the simultaneous equations
(d) All above
Q121
A reference node is
(a) Datum node
(b) Ground node
(c) At zero potential
(d) All above
Q122
No.of equations obtained in nodal analysis are equal to
(a) No.of nodes
(b) No.of non- reference node
(c) Ground node
(d) Datum node
Q123
Current flows through a resistor
(a) From lower to higher potential
(b) From higher to higher potential
(c) From higher to lower potential
(d) From lower to lower potential
Q124
A supernode is formed if
(a) A dependent voltage source is connected between two nodes
(b) An independent voltage source is connected between two nodes
(c) Both A & B
(d) None of above
Q125
A supernode is regarded as
(a) A closed surface
(b) A closed surface enclosing voltage source
(c) A closed surface enclosing voltage & two nodes
(d) None
Q126
Mesh analysis is based on
(a) Kirchhoff's current law
(b) Kirchhoff's voltage law
(c) Ampere law
(d) Coulomb law
Q127
Mesh analysis use
(a) Mesh current as circuit variables
(b) Element current as circuit variables
(c) Individual current as circuit variables
(d) None
Q128
A mesh is loop
(a) That contain other loop within it
(b) That does not contain other loop within it
(c) A closed path with no node passed more than once
(d) None of above
Q129
Nodal analysis find
(a) Unknown voltages in a circuit
(b) Unknown current in a circuit
(c) Unknown impedance in a circuit
(d) None of above
Q130
Mesh analysis find
(a) Unknown voltages in a circuit
(b) Unknown current in a circuit
(c) Unknown impedance in a circuit
(d) None of above
Q131
Nodal analysis is
(a) Very commonly used
(b) None Very commonly used
(c) Applicable to planar circuits
(d) None of above
Q132
Mesh analysis is also known as
(a) Loop analysis
(b) Mesh - current method
(c) Both A & B
(d) None of above
Q133
A planar circuit is that
(a) Which can be drawn in a plane
(b) Its branches do not cross each other
(c) Both A & B
(d) None of above
Q134
A non planar circuit is that
(a) Which can be drawn in a plane
(b) Its branches cross each other
(c) Both A & B
(d) None of above
Q135
Step to determine mesh currents are
(a) Assign mesh currents to meshes
(b) Apply kvl to all meshes
(c) Solve the resulting n- simultaneous equation.
(d) All above
Q136
The direction of mesh current is
(a) Arbitrary current source in common
(b) Clockwise
(c) Anti -Clockwise
(d) Does not affect the vabidity of solution
(e) All above
Q137
A super mesh results when two meshes have
(a) Dependent current source in common
(b) Independent current source in common
(c) Both A & B
(d) Dependent current source in common
Q138
A supermesh has
(a) The current source is not ignored
(b) No current of its own
(c) Required the application of both KUL & KCL
(d) All above
Q139
A conductance matrix has
(a) Diagonal elements which are sum of all conductances connected to that
node
(b) Off diagonal elements are - of the cum of conductances connected
between two nodes
(c) All above
(d) None of above
Q140
A resistance matrix has
(a) Diagonal elements are sum of resistances in the mesh
(b) Off diagonal elements are sum of resistances common in two meshes
(c) Both A & B
(d) None of above
Q141
Selection of method is analysis is made by
(a) The nature network
(b) The information required
(c) Both A & B
(d) None of above
Q142
The kinds of transistor commercially available are
(a) Bipolar junction transistor BJTS
(b) Field effect transistor FETS
(c) Both A & B
(d) None of above
Q143
The BJTS are
(a) npn
(b) pnp
(c) Both A & B
(d) None
Q144
A transistor has
(a) Emitter
(b) Collector
(c) Base
(d) All above
Q145
A major advantage of analyzing circuits using kirchhoff's laws is
(a) Original configuration is not tampered
(b) Original configuration is tempered
(c) Original configuration is altered
(d) None of above
Q146
A major disadvantage of circuit analysis using kirchhoff's law is
(a) For large networks computation is tedious
(b) For complex networks computation is tedious
(c) Both A & B
(d) None
Q147
Linearity is
(a) Property on an element
(b) Description of linear relationship between couse & effect
(c) Both A & B
(d) None
Q148
Linearity property is
(a) Homogeneity
(b) Additive property
(c) Combination of both Homogeneity & additive property
(d) None
Q149
The homogeneity requires
(a) It input is multipled by a constant, then output is multiplied by the same
constant
(b) If excitation is multiplied by a constant ,then out put is multipliedby the
same constant
(c) Both A & B
(d) None
Q150
A circuit is linear if it is
(a) Additive
(b) Homogeneous
(c) Both A & B
(d) None
Q151
A linear circuit consists of
(a) Linear elements
(b) Linear dependent sources
(c) Independent sources
(d) All above
Q152
A linear circuit is one whose
(a) Output is linearly related to its input
(b) Output is directly proportional to its input
(c) Both A & B
(d) None
Q153
Superposition is
(a) To determine the contribution of each source
(b) To add up the effects of all sources
(c) Both A & B
(d) None
Q154
The superposition principle states that
(a) Voltage asross an element in a linear circuit is algebraic cum of vltages
across theelement nue to each independent source acting alone.
(b) Current through an element in a linear circuit is algebraic cum of current
through the element nue to each independent source acting alone.
(c) Both A & B
(d) None
Q155
Superposition is limited to
(a) `Circuit analysis
(b) Applicable in many fields
(c) Applicable where couse & effect have a linear relation.
(d) Both B & C
Q156
The terms, killed, inactive, deadened or set equal to zero convey
(a) Same idea
(b) Different ideas
(c) Very different
(d) Entirely different
Q157
Steps to apply superposition are
(a) Turn off all independent sources except one & findthe output
(b) Repeat the above for all independent sources
(c) Find total output by adding
(d) All above
Q158
Source transformation is
(a) Simplifing tool
(b) Like series - parallel combination
(c) Like wye- delta transformation
(d) All above
Q159
Basic of source transformation is
(a) Concept of equivalence
(b) Concept of similarity
(c) Concept of equality
(d) None
Q160
A equivalent circuit is that whose
(a) V-2 characteristics are identical with original circuit
(b) V-2 characteristics are exactly of original circuit
(c) v-2 characteristics are Comparable with original circuit
(d) None
Q161
A source transformation is
(a) The process of replacing a voltage source in series with resistor
(b) By a current source in parallel with a resistor
(c) Both A & B
(d) None
Q162
Source transformation is
(a) Powerful tool
(b) Allowing circuit manipulation to ease circuit analysis
(c) Not pasible when R = O
(d) All above
Q163
A thevinin's theorm is a technique by which
(a) The fixed part of the circuit is replaced by an equivalent circuit
(b) The variable part of the circuit is replaced by an equivalent circuit
(c) The load is replaced by an equivalent circuit
(d) None of above
Q164
Thevinin's theorm states that
(a) A linear two terminal circuit can be replaced by an equivalent circuit
(b) The linear two terminal circuit can be replaced by an circuit having
voltage in series with resistor
(c) Both A & B
(d) None
Q165
Two circuits are equivalent if
(a) They have same voltage-current relationship at the terminal
(b) They have similar voltage-current relationship at the terminal
(c) They have almost same voltage-current relationship at the terminal
(d) None
Q166
A network has 12 branches and 8 independent loops how many nodes are
there in the network
(a) 19
(b) 17
(c) 5
(d) 4
Q167
Advantage of thevinin's theorm are
(a) It helps in simplifying a circuit
(b) A large circuit is replaced by two element circuit
(c) It is very helpful in design of circuit
(d) All above
Q168
Norton's theorm states that a linear two terminal circuit can be replaced by
(a) An equivalent circuit consisting of a current source inparallel with resistor
(b) An equivalent circuit consisting of a current source in series with resistor
(c) An equivalent circuit consisting of a voltage source in series with resistor
(d) None
Q169
Source transformation is often called
(a) Thevinin's transformation
(b) Norton's transformation
(c) Thevinin's -Norton transformation
(d) None
Q170
Thevinin's or norton equivalent circuits require
(a) Open circuit voltage
(b) Short circuit current
(c) Input resistance
(d) All above
Q171
Maximum power is transferred to the load when
(a) Load resistance is equal to thevinin's resistance
(b) Load resistance is equal to source resistance
(c) Load resistance is equal to line resistance
(d) None
Q172
Source & load are said to mached when
(a) Load resistan equals thevinin's resistance
(b) Load resistan equals norton's resistance
(c) Load resistan equals line resistance
(d) None
Q173
Source modeling
(a) Provides example of usefulness of norton's theorm
(b) Provides example of usefulness of thevinin's theorm
(c) Both A & B
(d) None
Q174
An active source is often characterized by
(a) Norton equivalent
(b) Thevinin's equivalent
(c) Both A & B
(d) None
Q175
An ideal voltage source provides
(a) A constant voltage
(b) A constant current
(c) A constant impedance
(d) None
Q176
An ideal current source provides
(a) A constant voltage
(b) A constant current
(c) Constant impedance
(d) None
Q177
Practical sources are
(a) Ideal
(b) Not ideal
(c) Have finite resistance
(d) Both B & C
Q178
Loading effect is due
(a) Load
(b) Source resistance
(c) Line resistance
(d) All above
Q179
Resistance is measured with
(a) Ohm meter
(b) Galvano meter
(c) Voltage meter
(d) None
Q180
More accurate measurement of resistance is made by
(a) Wheatstone bridge
(b) Ohm meter
(c) Galvano meter
(d) None
Q181
Ohm meter are designed to measure resistance in
(a) Low range
(b) Mid range
(c) High range
(d) All above
Q182
A wheatstone bridge is used to measure resistance in
(a) Mid range
(b) 1 Ohm to 1 Mohm
(c) Both A & B
(d) None
Q183
Very low resistance is measured by
(a) Milli ohm meter
(b) Micro meter
(c) Megger
(d) None
Q184
Very high resistance are measured by
(a) Megger tester
(b) Avo meter
(c) Ohm meter
(d) None
Q185
The wheatstone bridge was invented by
(a) Char less wheatstone
(b) Samual morse
(c) Both A &A B
(d) None
Q186
Current in a branch is 2A & voltage is 10 v .If voltage is educed to IV & polarity
is reversed, The current in branch is
(a) - 2
(b) - 0.2
(c) 0.2
(d) 20
Q187
If A is success in life then
(a) A =x + y + z
(b) A = x - y + z
(c) A = x + y – z
(d) None
Q188
Work is x
(a) Y is play
(b) Z is keeping your mouth shut
(c) Both A & B
(d) None
Q189
The opamp is
(a) An active circuit element
(b) Verstile in circuit building blocks
(c) Both A & B
(d) None
Q190
The op amp is
(a) An electronec unit
(b) Behaving bke vcvs
(c) Both A & B
(d) None
Q191
Ideal opamp circuits are
(a) Inverter, voltage follower
(b) Summer, difference amplifier
(c) Both A & B
(d) None
Q192
An opamp is
(a) Active circuit element
(b) To performer mathematical operations
(c) Both A & B
(d) None
Q193
The mathematical operation which an op amp can perform are
(a) Addtion, subtraction, multiplication
(b) Division, differentiation,integration
(c) Both A & B
(d) None
Q194
The op amp is an electronic device consisting of complex arranfement of
(a) Resistors
(b) Transistors / Capacitors
(c) Diode
(d) All above
Q195
Typical ranges of op amp parameters are
(a) A 10 raised to power 5 to 10 raised to the power 8
(b) Ri 10 raised to power 6 to 10 raised to the power 13
(c) Ro 10 to 100 ohm
(d) Supply voltage 5 to 24
(e) All above
Q196
An ideal op amp has following characteristics
(a) A is infinity
(b) Ri is infinity
(c) Ro is zero
(d) All above
Q197
Two characteristics of op amp are
(a) For voltage calculation the input port behave as short circuit
(b) For current calculation the input port behave an open circuit
(c) Both A & B
(d) None
Q198
The difference amplifier is also called
(a) Subtractor
(b) Differential amplifier
(c) Both A & B
(d) None
Q199
A cascade connection of op amp is
(a) Head to tail arrangement
(b) Output of one is input of other
(c) Both A & B
(d) None
Q200 The gain of carcade connection is
(a) Sum of individual gains
(b) Multiple of gains
(c) Difference of gains
(d) None
Q201
An inverting amplifier
(a) Reverse the polarity of input signal
(b) Amplifier the input signal
(c) Both A & B
(d) None
Q202
A noninverting amplifier
(a) Do not reverse the polarity of input signal
(b) Provide positive gain
(c) Both A & B
(d) None
Q203
In a voltage flower
(a) Rf= zero
(b) R1 = infinity
(c) Output follow the input
(d) All of the above
Q204
In a unity gain amplifier
(a) Rf= zero
(b) R1= infinity
(c) Output follow the input
(d) All above
Q205
Votage follower is used as
(a) Buffer
(b) Intermediate - stage amplifier
(c) To isolate one circuit from another
(d) All above
Q206
Summing amplifier is
(a) An op amp circuit
(b) Combiner many inputs & produces one output
(c) The output which it produce is weighted sum of inputs
(d) All above
Q207
A difference amplifier is
(a) A device that amplifier difference of two inputs
(b) Rejects any signal common to inputs
(c) Both A & B
(d) None
Q208
Digital to analogue converter
(a) Transform digital signal into analog form
(b) Transform analog signal into analog form
(c) Transform analog signal into digital form
(d) None
Q209
MSB in DAC is
(a) Most significantbit
(b) Minimum significant bit
(c) Marginally significant bit
(d) None
Q210
LSB in DAC is
(a) Lower significant bit
(b) Lowest significant bit
(c) Least significant bit
(d) None
Q211
An instrumentation amplifier is
(a) The most useful & versatile
(b) Used for precision measurement
(c) Used for process control
(d) All above
Q212
The instrumentation amplifier is
(a) Extension of difference amplifier
(b) To amplifier difference of two inputs
(c) Both A & B
(d) None
Q213
An instrumentation amplifier consists of
(a) Three op amps
(b) Sevent resistors
(c) Both A & B
(d) None
Q214
The instrumentation amplifier has major characteristics
(a) Gain is adjusted by external resistor
(b) Input impedance of both impuls is very high & does not vary as gain is
adjusted
(c) The output depends on difference of the inputs
(d) All above
Q215
The op amp is
(a) High gain amplifier
(b) Has high input resistance
(c) Low output resistance
(d) All above
Q216
The two input terminals of op amp are
(a) High & low
(b) + Ve & - Ve
(c) Inverting & non- inverting
(d) Differential & non differential
Q217
For on ideal op amp
(a) The differential voltage across input terminal is zero
(b) The current into the input terminal is zero
(c) The current from the output terminal is zero
(d) The input resistance is zero
Q218 Which of these amplifier is used in DAC
(a) Non inverting
(b) Voltage follower
(c) Summer
(d) Difference amplifier
Q219
Difference amplifier are used in
(a) Instrumentation amplifier
(b) Voltage follower
(c) Voltage regulators
(d) Buffers
Q220
The important thing about a problem is
(a) Its solution
(b) The strenght we gain in finding the solution
(c) Wisdom that we gain
(d) None
Q221 A capacitor consists of
(a) Two conducting plates
(b) Two cunducting plates separated by insulator
(c) Two conducting plates separated by dielectric
(d) Both B & C
Q222
The plates of capacitor are
(a) Aluminium foil
(b) Iron
(c) Silver
(d) Copper
Q223
The dielectric used in capacitor is
(a) Air,ceramic
(b) Paper cr mica
(c) Both A & B
(d) Noen
Q224
Capacitance is
(a) Amount of charge stored per plate
(b) Amount of charge stored per plate for a unit voltagedifference in capacitor
(c) Both A & B
(d) None
Q225
Units of capacitance are
(a) Farads
(b) Micro-farads
(c) Pico-farads
(d) All above
Q226
The value of capacitance depends upon
(a) The surface area of the plates
(b) The spacing between the plates
(c) Permitivity of material
(d) All above
Q227
The types of capacitors are
(a) Fixed
(b) Variable
(c) Both A & B
(d) None
Q228
Polyester capacitors are
(a) Light in weight
(b) Stable
(c) Their change with temp is predictable
(d) All above
Q229
Types of capacitors are
(a) Polyester,film,electrolytic
(b) Trimmer, padder
(c) Both A & B
(d) None
Q230 The variable capacitors are used in
(a) Radio to tune stations
(b) To block d.c, pass a.c, store energy
(c) Start motors & suppress noise
(d) All above
Q231
For a capacitor to carry current
(a) Its voltage should remain constant
(b) Its voltage should remain change
(c) Its voltage should remain reduce
(d) None
Q232
The important properties of capacitor are
(a) When voltage is not changing current is zero
(b) The voltage on capacitor must be continuous
(c) The ideal capacitor does not dissipate energy
(d) All above
Q233
The equivalent capacitance of N parallel capacitors is
(a) Multiple of all capacitor
(b) Sum of all capacitances
(c) Difference of all capacitance
(d) None
Q234
The equivalent capacitance of series connected capacitor is
(a) Sum of reciprocal of indvidual capacitance
(b) Reciprocal of sum of reciprocals of the individual capacitances
(c) Sum of capacitances
(d) None
Q235
A capacitor is
(a) An open circuit for D.C
(b) An open circuit for A.C
(c) Short circuit for D.C
(d) Short circuit A.C
Q236
The voltage on capacitor
(a) Changes abruptly
(b) Cannot change abruptly
(c) Changes on no time
(d) Changes very slowly
Q237
An inductor is
(a) A passive element
(b) Store energy
(c) Both A & B
(d) None of above
Q238
Inductors are used in
(a) Electronics & power systems
(b) Power supplies, transformers,radio,tv,radm & motors
(c) Both A & B
(d) None of above
Q239
An inductor is
(a) Any conductor of electric current
(b) A cylindrical coil
(c) A cylindrical coil with many turns
(d) All above
Q240
An inductor is
(a) A coil of conducting wire
(b) A coil of non-conducting coil
(c) A coil of insulation
(d) None of above
Q241
An inductance is
(a) Property of inductor
(b) Apposition to the change of current
(c) Measured in henry
(d) All above
Q242
The inductor may be
(a) Fixed
(b) Variable
(c) Both A & B
(d) None of above
Q243
An inductor has
(a) Core
(b) Winding
(c) Both A & B
(d) None of above
Q244
The core of inductor may be
(a) Iron
(b) Steel
(c) Plastic
(d) Air
(e) All above
Q245
The inductors are also called
(a) Coil
(b) Choke
(c) Both A & B
(d) None
Q246
A linear inductor is that
(a) Whose inductance is independent of current
(b) Whose inductance is independent of vltage
(c) Whose inductance is independent of impedance
(d) Whose inductance is independent of resistance
Q247
An inductor is
(a) Short circuit for A.C
(b) Short circuit for D.C
(c) Open circuit for A.C
(d) Open circuit for D.C
Q248
The current through an inductor
(a) Changes abruptly
(b) Cannot change instantaneously
(c) Changes instantaniously
(d) None of above
Q249
A ideal inductor
(a) Dissipate energy
(b) Do not dissipate energy
(c) Wates energy
(d) None
Q250
An ideal inductor
(a) Stores energy
(b) Stored energy can be retriewed
(c) Both A & B
(d) None of above
Q251
A practical inductor has
(a) Significant resistance
(b) Negligible resistance
(c) Small resistance
(d) None
Q252
The equivalent inductance of series connected inductors is
(a) Multiple of inductors
(b) Sum of inductors
(c) Difference of inductors
(d) Addition of inductors
Q253
The equivalent inductance of parallel inductors is
(a) The sum of individual inductances
(b) The reciprocal of of the sum of the reciprocals of individual inductances
(c) The reciprocal of the sum of the individual inductances
(d) None of above
Q254
The capacitor has following special properties
(a) Capacity to store energy makes them useful as temporary voltage source
(b) Capacitor oppose any abrupt change of voltage
(c) Capacitors are frequency sensitive
(d) All above
Q255
The inductor has following special property
(a) Can be used as temporary current source
(b) Oppese any change of current
(c) Inductors are frequency senstive
(d) All above
Q256
An integrator is
(a) An op amp circuit
(b) Whose output is proportional to the integrad of the input signal
(c) Both A & B
(d) None of above
Q257
A differentiator is
(a) An op amp circuit
(b) Whose output is proportional to rate of change of input signal
(c) Both A & B
(d) None of above
Q258
What charge is on a 5-F capacitor when it is connected across a 120-V source?
(a) 600 C
(b) 300 C
(c) 24 C
(d) 12 C
Q259
Capacitance is measured in:
(a) Coulombs
(b) Joules
(c) Henrys
(d) Farads
Q260
When the total charge in a capacitor is doubled,the energy stored:
(a) Remains the same
(b) Is halved
(c) Is doubled
(d) Is quadrupled
Q261
The total capacitance of two 40-mF series-connected capacitors in parallelwith a
4-mF capacitor is:
(a) 3.8 Mf
(b) 5 mF
(c) 24 mF
(d) 44 mF
(e) 84mF
Q262
A 5-H inductor changes its current by 3 A in 0.2s. The voltages produced at the
`terminals of the inductor is:
(a) 75 V
(b) 8.888 V
(c) 3 V
(d) 1.2 V
Q263
If the current through a 10-mH inductor increases from zero to 2A, how much
energy is stored in the inductor?
(a) 40 mJ
(b) 20 Mj
(c) 10 mJ
(d) 5 mJ
Q264
You know something when
(a) You can measure what you are speaking about
(b) You express in numbers
(c) Both A & B
(d) None of above
Q265
Your knowledge is unsatisfactory when
(a) You cannot express your speach in numbers
(b) It may be begining of your knowledge
(c) You have scarcely advanced to the stage of science
(d) All above
Q266
Computers occupy a prominent place in
(a) Modorn society
(b) Education
(c) Both A & B
(d) None
Q267
Computer have become a common place & are help to change
(a) Face of research, development & production
(b) Business & entertainment
(c) Both A & B
(d) None
Q268
The computer is very useful for
(a) Scientists, engineers, doctors, attorny,
(b) Teachers, airline pilot, business person-almost anyone
(c) Both A & B
(d) None
Q269
The internet, a computer communication network, is becoming essential in
(a) Business
(b) Library science
(c) Both A & B
(d) None
Q270
The major disciplines study computer system are
(a) Computer science ]
(b) Computer engineering
(c) Information management science
(d) All above
Q271
Computer engineering is growing so fast & wide that
(a) It is divorcing electrical engineering
(b) In many schools computer engineering is still integral part of electrical
engineering
(c) Both A & B
(d) None
Q272
An education in computer engineering should provide
(a) Breadth in software
(b) Hardware design
(c) Basic modelling techniques
(d) All above
Q273
Computer education should include courses in
(a) Data structure
(b) Digital system, software engineering
(c) Computer architecture, microprocessors, interfacing & operating system
(d) All above
Q274
Electrical engineers who specialize in computer engineering find jobs in
(a) Computer industry
(b) Where computers are used
(c) Both A & B
(d) None
Q275
An excellent way to advance one's knowledge of computer is
(a) Join IEEE computer society
(b) Join computer industry
(c) Join industry using computers
(d) None
Q276
The passive elements which we have considered do far are
(a) Resistor
(b) Inductor
(c) Capacitor
(d) All above
Q277
A first order circuit is that can be characterized by
(a) First order differential equation
(b) Second order differential equation
(c) 3rd order equation
(d) Quadratic equation
Q278
The natural rosponse of circuit refers to
(a) Behavior of circuit itself
(b) Behavior of circuit voltages / current
(c) Behavior of circuit voltages / current with no external source excitation
(d) None
Q279
The natural response depends on
(a) The nature of circuit alone with no external source
(b) The circuit has response only because of energy intially stored in
capacitor
(c) Both A & B
(d) None
Q280
A circuit response is
(a) The manner in which the circuit react to excitation
(b) The manner in which the circuit react to source
(c) The manner in which the circuit react to impedance
(d) The manner in which the circuit react to resistance
Q281
The time constant of a circuit is time
(a) Required for the response to decay
(b) Required for the response to decay to 36.8% of its intial value
(c) Required for the response to decay to 1/e of its intial value
(d) Both B & C
Q282
The key to working source- free RC circuit is finding
(a) The initial voltage across the capacitor
(b) The time constant
(c) Both A & B
(d) None
Q283
A circuit containing single capacitor,reveral resistors & dependent sources
(a) Thevinin equivalent can be formed as simple RC circuit
(b) Thevinin equivalent can be formed as simple RL circuit
(c) Thevinin equivalent can be formed as simple RLC circuit
(d) None
Q284
When several capacitors can be combined to single
(a) Thevinin's equivalent can be formed to form a single equivalent capacitor
(b) Thevinin's equivalent can be formed to form a Rc circuit
(c) Thevinin's equivalent can be formed to form a RL circuit
(d) Thevinin's equivalent can be formed to form a RLC circuit
Q285
The smaller time constant of a circuit
(a) The faster the rate of decay of response
(b) The slower the rate of decay of response
(c) No decay
(d) None
Q286
At what time response decay to 1%
(a) After 5 time constant
(b) After 3 time constant
(c) After 2 time constant
(d) After 1 time constant
Q287
The key to working with a source- free RL circuit is to find
(a) The intial current through inductor
(b) The time constant
(c) Both A & B
(d) None
Q288
Circuit having inductor, several resistor & dependent sources
(a) The thevinin's equivalent can formed at terminals of simple inductor to form
RL circuit
(b) The thevinin's equivalent can formed at terminals of simple inductor to form
RC circuit
(c) The thevinin's equivalent can formed at terminals of simple inductor to form
RLC circuit
(d) None
Q289
When several inductors can be comined to form single equivalent inductor
(a) Thevinin's can be formed
(b) Thevinin's cannot be formed
(c) Norton cannot formed
(d) Norton can be formed
Q290
Singularity functions are
(a) Functions that discontinuous
(b) Functions that have discontinuous derivative
(c) Both A & B
(d) None
Q291
The most widely used singularity functions are
(a) Unit step
(b) Unit impulse
(c) Unit ramp
(d) All above
Q292
Unit step function is
(a) 0 for negative values
(b) 1 for +ve value
(c) Both A & B
(d) None
Q293
The unit impulse function is
(a) Zero everywhere
(b) At t=0 is undefined
(c) Both A & B
(d) None
Q294
The unit ramp function is
(a) 0 for negative values
(b) Has unit +ve slope for +ve values of time
(c) Both A & B
(d) None
Q295
Gate functions are
(a) Used along with switches to pass signal
(b) Used along with switches to block another signals
(c) Both A & B
(d) None
Q296
Step response of an Rc circuit
(a) When a d.c source an Rc circuit is suddely applied the voltage / current
source can be modeled as step function
(b) The response at that is called step response
(c) Both A & B
(d) None
Q297
The step response of circuit is its behavior
(a) When the excitation is step function
(b) May be voltage or current source
(c) Both A & B
(d) None
Q298
The natural response of a circuit is
(a) Circuits temporary response
(b) Circuit temporary response that will die out with time
(c) Will not die
(d) Die after large time
Q299
The forced response is
(a) The behaviour of the circuit
(b) The behaviour of the circuit a long time after an external source is applied
(c) The behaviour of the circuit a long time after an internal source is applied
(d) None
Q300
To find step response of RC circuit the requirement is
(a) Initial capacitor voltage
(b) Final capacitor voltage
(c) Time constant
(d) All above
Q301
To find the step response of RL circuit the requirement is
(a) Initial inductor current
(b) Final inductor current
(c) Time constant
(d) All above
Q302
An op amp circuit containing a storage element will
(a) Behave as first order circuit
(b) Behave as 2nd order circuit
(c) Behave as 3rd order circuit
(d) None
Q303
The examples of first order circuit are
(a) Differentiator
(b) Integrator
(c) Both A & B
(d) None
Q304
Op amp circuit are always
(a) RC type
(b) RL type
(c) RLC type’
(d) None
Q305
Pspice uses transient to mean
(a) Function of time
(b) Transient response in pspice may not die
(c) Both A & B
(d) None
Q306
An RC circuit has R = 2 ohm and C= 4.F the time constant is :
(a) 0.5 s
(b) 2 s
(c) 4 s
(d) 8 s
(e) 15 s
Q307
The time constant for an RL circut with R = 2 ohm and L= 4 H is :
(a) 0.5 s
(b) 2 s
(c) 4 s
(d) 8
(e) 15 s
Q308
A capacitor in an RC circuit with R= 2 ohm and C=4 F is being charged. The time
required for the capacitor voltage to reach 63.2 percent of its steady- state value
is:
(a) 2 s
(b) 4 s
(c) 8 s
(d) 16 s
(e) None of the above
Q309
An RL circuit has R= 2 ohm and L= 4 H. The time needed for the inductor
current to reach 40 percent of its steady-state value is :
(a) 0.5 s
(b) 1 s
(c) 2 s
(d) 4 s
(e) None of the above
Q310
If us changes from 2 V to 4 V at t=0, we may express us as:
(a) 8 (t) V
(b) 2 u (t) V
(c) 2 u (-t) + 4u (t) V
(d) 2 + 2u (t) V
(e) 4u (t) -2 V
Q311
Engineering is
(a) A learned profession
(b) A learning profession
(c) One whose practitioners first become & then remain student for ever.
(d) All above
Q312
At bachelor degree level
(a) You learn language of Engg.
(b) Fundamentals of Engg.
(c) Engineering design
(d) All above
Q313
At master level
(a) You acquire the ability to do advanced engineering projects
(b) You communicate your work effectively both orally &in writing
(c) Both A & B
(d) None
Q314
PHD represents
(a) Thorough understanding of fundamentals
(b) A mastery of the skills
(c) Communicating one's effort to others
(d) All above
Q315
Enhancing your career involves
(a) Understanding your goals
(b) Adapting to changes
(c) Anticipating opportunities
(d) Planning your own niche
(e) All above
Q316
A second order circuit is characterized by
(a) Second order differential equation
(b) Resistors & equivalent of two energy storage elements
(c) Both A & B
(d) None
Q317
For finding initial conditions following is necessary
(a) Polarity of capacitor voltage
(b) Direction of inductor current
(c) Capacitor voltage is continuous
(d) Inductor current is continuous
(e) All above
Q318
Study of natural response of RLC circuit is necessary for future study of
(a) Filter design
(b) Communication network
(c) Both A & B
(d) None
Q319
The response of second order circuit is overdamped when
(a) Roots of characteristic equal are unequal
(b) Roots of characteristic equation are equal & real
(c) Roots are unequal & real
(d) None
Q320
The response of second order circuit is critically damped when
(a) Roots of characteristic equation are unequal & real
(b) Roots of characteristic equation are equal & real
(c) Roots of characteristic equation are complex & real
(d) None
Q321
The response of second order circuit is underdamped when
(a) Roots of characteristic equation are unequal & real
(b) Roots of characteristic equation are equal & real
(c) Roots of characteristic equation are complex & real
(d) None
Q322
The response of RLC circuit is perfect sinusoidal when
(a) R = 0
(b) R is +ve
(c) R is –ve
(d) R is infinity
Q323
The response of RLC circuit practically can never be perfect because
(a) Inherent resistance of inductor
(b) Inherent resistance of capacitor
(c) Both A & B
(d) None
Q324
An electronic device which can produce perfect sinusoide is
(a) Oscillator
(b) Vibrator
(c) Multivibrator
(d) Flip flop
Q325
Step response of second order circuit is found by
(a) Initial values & final values
(b) Natural response
(c) Forced response
(d) Total response
(e) All above
Q326
An op amp circuit is second order if it
(a) Has two storage devices which cannot be combined
(b) Has two storage devices which can be combined
(c) Has two storage devices which are in series
(d) Has two storage devices which are in parallel
Q327
The concept of duality is
(a) Time saving
(b) Effort effective
(c) Both A & B
(d) None
Q328
The duabity principle
(a) Asserts a parallelism between pair of characterizing equation
(b) Asserts a parallelism between pair of characterizing equation theorm
(c) Both A & B
(d) None
Q329
Two circuits are said to be dual if
(a) They are described the same characterizing equations
(b) They are described the same characterizing equations with dual
quantities interchanged
(c) They are described the different characterizing equations
(d) None
Q330
Dual of resistance is
(a) Conductance
(b) Inductance
(c) Capacitance
(d) Voltage
Q331
Dual of inductance is
(a) Resistance
(b) Conductance
(c) Capacitance
(d) Voltage
Q332
Dual of voltage source is
(a) Resistance
(b) Conductance
(c) Current
(d) Impedance
Q333
Dual of voltage source is
(a) Resistance
(b) Conductance
(c) Current
(d) Current source
Q334
Dual of node is
(a) Mesh
(b) Series path
(c) Parallel path
(d) Branch
Q335
Dual of series path is
(a) Parallel path
(b) Open circuit
(c) Short circuit
(d) Mesh
Q336
Dual of open circuit is
(a) Parallel path
(b) Series path
(c) Short circuit
(d) Node
Q337
Dual of KVL is
(a) KCL
(b) Node
(c) Mesh
(d) Open circuit
Q338
Dual of thevinin is
(a) KCL
(b) KVL
(c) Node
(d) Norton
Q339
When a step input is applied to a second-order circuit. the final values of the
circuuit variables are found by:
(a) Replacing capacitors with closed circuits and inductors with open circuits.
(b) Replacing capacitors with open circuts and inductors with closed circuits.
(c) Doing neither of the above
Q340
In a series RLC sircuit, setting R =0 will produce:
(a) An overdamped response
(b) A critically damped response
(c) An underdamped response
(d) An undamped response
(e) None of the above
Q341
A parallel RLC circuit has L= 2 H and C=0.25 F. The value of R that will
produce unity damping factor is:
(a) 0.5 ohm
(b) 1 ohm
(c) 2 ohm
(d) 4 ohm
Q342
The great enginer of progress are
(a) Desire to under stand the world
(b) Desire to reform world
(c) Both A & B
(d) None
Q343
A sinusoid is that
(a) Form of the sine
(b) Form of cosine
(c) Both A & B
(d) None
Q344
A periodic function is that
(a) Satisfy f(t) = f(t+nT)
(b) Satisfy f(t) = f(t+nT) for all t
(c) Satisfy f(t) = f(t+nT) for all t and for all integers
(d) None
Q345
A phasor is
(a) Complex number
(b) Complex number that represent the amplitude
(c) Complex number that represent the amplitude & phase
(d) None
Q346
A phasor may be regarded as
(a) A mathematical equivalent of scinusoid
(b) A mathematical equivalent of scinusoid with time dependence
(c) A mathematical equivalent of scinusoid with time dependence dropped
(d) None
Q347
Differentiating phasor is equivalent to
(a) Multiplying its phasor by jw
(b) Multiplying its phasor by iw
(c) Multiplying its phasor by WL
(d) Multiplying its phasor by wc
Q348
Integrating a sinusoid is equivalent to
(a) Dividing its phasor by JW
(b) Dividing its phasor by iw
(c) Dividing its phasor by WL
(d) Dividing its phasor by cw
Q349
Adding sinusoids of same frequency is
(a) Equivalent to adding their phasors
(b) Equivalent to subtracting their phasors
(c) Equivalent to multiplying their phasors
(d) Equivalent to dividing their phasors
Q350
The impedance of a circuit is ratio of
(a) Phasor voltage & phasor current
(b) Phasor voltage & phasor voltage
(c) Phasor current & phasor current
(d) None
Q351
The admittance is reciprocal of
(a) Resistance
(b) Inductance
(c) Impedance
(d) None
Q352
A delta or wye circuit is said to be balenced if
(a) Equal impedances
(b) Equal impedances in all three branches
(c) Unequal impedances in all three branches
(d) None
Q353
A function that repeats itself after fixed intervals is said to be:
(a) A phasor
(b) Harmonic
(c) Periodic
(d) Reactive
Q354
If U1 = 30 sin(wt + 10) and U2 = 20 sin (wt + 50) which of these statements are
true?
(a) U1 leads U2
(b) U2 leads U1
(c) U2 leads U1
(d) U1 leads U2
(e) U1 and U2 are in phase
Q355
The imaginary part of impedance is called:
(a) Resistance
(b) Admittance
(c) Susceptance
(d) Conductance
(e) Reactance
Q356
A series RC circuit has VR = 12 V and Vc = 5 V. The supply voltage is :
(a) -7 V
(b) 7 V
(c) 13 V
(d) 17 V
Q357
A series RCL circuit has R = 30 ohm, Xc = -50 ohm and XL = 90 ohm. The
impedance of the circuit is:
(a) 30 + j 140 ohm
(b) 30 + j 40 ohm
(c) 30 - j 40 ohm
(d) - 30 - j 40 ohm
(e) -30 + j 40 ohm
Q358
An expert problem solver must he endowed with
(a) A restless imagination
(b) A patient pertinacity
(c) Both A & B
(d) None
Q359
Software engineering deals with
(a) Practical application of scientific nowledge in dosign
(b) Contruction
(c) Validation of computer program
(d) All above
Q360
Analyzing ac circuit the step required are
(a) Transform the circuit to phasor or fraquency domain
(b) Solve them problem using network techniques
(c) Transform the resulting phasor to time domain
(d) All above
Q361
Important properties of op amp in analyzing op amp circuits are
(a) No current enters either of its input terminals
(b) The voltage across its input terminals is zero
(c) Both A & B
(d) None
Q362
An oscillator is a circuit
(a) That produce ac waveform
(b) That produce ac waveform as output
(c) That produce ac waveform as output when powered by DC
(d) None
Q363
Pspice is
(a) A simple of powerful tool for solving ac ciruits
(b) A reliever of tediuos work of solving complex numbers
(c) Both A & B
(d) None
Q364
A capacitance multiplier is
(a) An op amp circuit
(b) Used in producing a multiple of a physical capacitance
(c) Both A & B
(d) None
Q365
Electric power is obtained by converting energy from sorces such as
(a) Fossil fuels
(b) Nuclear
(c) Hydro ,windenergy ,tidal energy
(d) Biomass
(e) All above
Q366
The average power is
(a) Averageof instantaneous power
(b) Averageof instantaneous power over a period
(c) Averageof instantaneous power over two periods
(d) None
Q367
A resiotive load
(a) Absorb power at all times
(b) Absorb zero power
(c) Absorb zero average power
(d) None
Q368
A reactive load {L}
(a) Absorb power at all times
(b) Absorb zero power
(c) Absorb zero average power
(d) None
Q369
A reactive load {C}
(a) Absorb power at all times
(b) Absorb zero power
(c) Absorb zero average power
(d) None
Q370
For maximum average power transfer
(a) The load inpedance must be equal complex conjugate
ofthevinin'sinpedance
(b) The load inpedance must be equal simple conjugate of
thevinin'sinpedance
(c) The load inpedance must be equal to thevinin's inedance
(d) None
Q371
The effective value of a periodic current is
(a) The DC current
(b) The DC current that delivers the average power
(c) The DC current that delivers the average power to a resistor as the
periodic current
(d) None
Q372
The apparent power is
(a) Product of rms values of voltage of current
(b) Sum of rms values of voltage of current
(c) Difference of rms values of voltage of current
(d) None
Q373
The power factor is the cosine of
(a) The phase difference between voltage of current
(b) The angle of load impedance
(c) Both A & B
(d) None
Q374
The power factor is
(a) Ratio of real power of apparent power of the load
(b) Cosine of the angle of load impedance
(c) Both A & B
(d) None
Q375
Complex power is
(a) The product of the rms voltage phases & complex conjugate of the rms
current phasors.
(b) Has real part & imaginary part
(c) Both A & B
(d) None
Q376
A power triangle has
(a) Real power on x – axis
(b) Imaginary power on y – axis
(c) Apparent power on hypotineuz
(d) All above
Q377
An impedance triangle has
(a) R on x - axis
(b) X on y – axis
(c) z on hypotineuz
(d) All above
Q378
Power factor correction is
(a) Process of increasing the power factor
(b) Process of increasing the power factor without altering voltage / current
(c) Process of increasing the power factor without altering voltage / current
to the original load
(d) None
Q379
Power factor correction is
(a) Addition of reative element in parallel with load
(b) Addition of capacitor element in parallel with load
(c) Both A & B
(d) None
Q380
The apparent power is
(a) The product the rms values of current of voltage
(b) The under root of sum of squares of real of reactiv powers
(c) Both A &B
(d) None
Q381
The complex power is
(a) The product of the rms voltage phasor of complex conjugateof the rms
corrent phasor
(b) Is the complex sum of real power of reactive power
(c) Both A & B
(d) None
Q382
The watt metar is the instrument for
(a) Mean using average power
(b) Mean using max power
(c) Mean using intantaneous power
(d) None
Q383
The reactive power is measured by
(a) Wattmeter
(b) Varmeter
(c) Voltmeter
(d) Ammeter
Q384
Power factor correction is needed for
(a) Economic reasons
(b) Techincal reasons
(c) Both A & B
(d) None
Q385
Energy consumed is measured by
(a) Kilowatt - hour meter
(b) Wattmeter
(c) Voltmeter
(d) Ammeter
Q386
The Thevenin impedance of network seen from the from load terminals is 80+j55
for maximum power transfer, the load impedance must be:
(a) -80+j55 ohm
(b) -80-j55 ohm
(c) 80-j55 ohm
(d) 80+j55ohm
Q387
The amplitude of the voltage available in the 60-Hz, 120-V power outlet in your
home is:
(a) 110V
(b) 10V
(c) 170V
(d) 210V
Q388
If the load impedance is 20 - j20, the power factor is
(a) - 45 dgree
(b) 0
(c) 1
(d) 0.7071
(e) None of these
Q389
A quantity that contains all the power information in a given load is the
(a) Power factor
(b) Apparent power
(c) Average power
(d) Reactive power Complex
Q390
Reactive power is measured in:
(a) Watts
(b) VA
(c) VAR
(d) None of these
Q391
In the poower triangle shown in Fig. 11(a), thereactive power is:
(a) 1000 VAR leading
(b) 1000 VAR lagging
(c) 866VAR leadig
(d) 866VAR lagging
Q392
A source is connected to three Z1, Z2, and Z3 in parallel.Which of these is not
ture?
(a) p = p1 + p 2+ p3
(b) Q = Q1 + Q2 + Q3
(c) S = S1 + S2 + S3
(d) S = S1 + S2 + S3
Q393
The instrument for measuring average power is the:
(a) Vottmeter
(b) Ammeter
(c) wattmeter
(d) Varmeter
(e) Kilowatt-hour meter
Q394
Every new thing is
(a) Resisted
(b) It takes years that people listen to it ]
(c) It takes years to be intruduced
(d) All above
Q395
Who invented 3-phase system
(a) Leny
(b) Ohm
(c) Coulumb
(d) Thomas edison
Q396
Types of 3-phase system are
(a) 3-phase, three wire
(b) Three-phase, 4-wire system
(c) Both A & B
(d) None
Q397 Balanced phase voltages are
(a) Equal in magnitude
(b) Out of phase with each other by 120 degrees.
(c) Both A & B
(d) None
Q398
Phase sequence is
(a) A time order
(b) Voltages pass through their maximum
(c) Both A & B
(d) None
Q399
A balanced load is
(a) In which phase impedances are equal in magnitude
(b) In which phase impedances are equal in phase
(c) Both A & B
(d) None
Q400
A y-connected load
(a) Consist of three impedances connected to neutral node
(b) Consist of three impedances connected to around a loop
(c) Consist of three impedances connected to in series
(d) Consist of three impedances connected to parallel
Q401
A delta connected load is
(a) Consist of three impedances connected to neutral node
(b) Consist of three impedances connected to around a loop
(c) Consist of three impedances connected to in series
(d) Consist of three impedances connected to parallel
Q402
Phase sequence may be regarded as
(a) Order in which phase voltages reach their peak
(b) Order in which phase voltages reach their peak with respect to time
(c) Order in which phase voltages reach their peak with respect to reference
(d) None
Q403
A balanced d y-y system is
(a) A three phase system with balanced y-connected sources.
(b) A three phase system with balanced y-connected loads.
(c) Both A & B
(d) None
Q404
Balanced y-delta system
(a) Consist of a balanced y-connected source
(b) Consist of a balanced delta loads
(c) Both A & B
(d) None
Q405 A balanced delta-delta system is
(a) One in which delta connected sources are there
(b) One in which delta connected loads are there
(c) Both A & B
(d) None
Q406
A balanced delta y- system
(a) Consists of a balanced delta connected source
(b) Consists of a balanced y connected source
(c) Both A & B
(d) None
Q407
An unbalance system is due to
` (a) Unbalanced voltage source
(b) An balance load
(c) Both A & B
(d) None
Q408
If in an acb phase sequence, Van = 100 at - 20 degree, then Vcn is:
(a) 100 at - 140 degree
(b) 100 at 100 degree
(c) 100 at -50 degree
(d) 100 at 10 degree
Q409
Which of these is not a required condition for a balanced system:
(a) | Van | = | Vbn | = |Vcn |
(b) Ib + Ib + Ic = 0
(c) Van + Vbn + Vcn = 0
(d) Source voltages are 120 degree out of phase with each other
(e) Load impedances for the three phases are equal
Q410
In a Y-Y system, a line voltage of 220 v produces a phae voltage of :
(a) 381 V
(b) 311 V
(c) 220 V
(d) 156 V
(e) 127 V
Q411
In a delta-delta system, a phase of 100 V produces a line voltage of:
(a) 58 V
(b) 71 V
(c) 100 V
(d) 173 V
Q412
Electromantics is
(a) A branch of electrical engineering
(b) A branch dealing with application of electric of magnetic field
(c) A branch dealing with anlysing of electric of magnetic field
(d) ALL Above
Q413
The principle of electromagnetic is applied
(a) Electrical machines, radar metrology, remote sensinp
(b) Satellite communications, bioelectro magnetics
(c) Electromagnetics interference, Transfermers etc
(d) All above of more
Q414
EM is difficult because
(a) It is rather abotract
(b) It is rather difficult
(c) It is rather comnlicated
(d) All above
Q415
Mutual inductance is
(a) The ablity of one inductor
(b) The ablity of one inductor to induce voltage across a neighboring inductor
(c) Measured in henry
(d) All above
Q416
The coupling co-efficient is
(a) Measure of the magnetic coupling
(b) Measure of the magnetic coupling between two coils
(c) Its value varies between 0 & 1
(d) All above
Q417
A transfermers is
(a) Generally a four terminals device
(b) Generally a two terminals device
(c) Generally a four terminals device comprising two or more magnetically
coupled coils
(d) None
Q418
A binear transfermer is
(a) Whose flux is directly proportional to current
(b) Whose flux is inversely proportional to current
(c) Whose flux is not proportional to current
(d) None
Q419
An ideal transformer is
(a) Unity coupled
(b) loss less
(c) have infinite self-inductance
(d) All above
Q420
A step down tranformer is
(a) Whose recondary is less then primary voltage
(b) Whose recondary is greater then primary voltage
(c) Whose recondary is greater equal to primary voltage
(d) None
Q421
A step up trtansformer is
(a) Whose recondary is less then primary voltage
(b) Whose recondary is greater then primary voltage
(c) Whose recondary is greater equal to primary voltage
(d) None
Q422
Eliminating transformer & reflecting seandary circuit to primary side is
(a) Divide secondary impedance by n X n
(b) Divide secondary voltage by n
(c) Multiply secondary current by n
(d) All above
Q423
Eliminating transformer & reflecting primary circuit to secandary side is
(a) Multiply the primary impedance by n X n
(b) Multiply the primary voltage by n
(c) Divide the primary current by n
(d) All above
Q424
An anto transformer is a
(a) Transfprmer in which both primary & secondary are in simple winding
(b) Transfprmer in which both primary & secondary are in separete windings
(c) Transfprmer in which both primary & secondary are in different widings
(d) None
Q425
The coefficient of coupling for two coils having L1=2h,L2=8HM= 3 is:
(a) 0.1875
(b) 0.75
(c) 1.333
(d) 5.333
Q426
A Ransformer is used in stepping down or stepping up:
(a) DC voltages
(b) AC voltage
(c) both DC an AC votages
Q427
In order to match source with internal impedance of 500 ohm to a 15- ohm load,
what is needed is:
(a) Step-up linear transformer
(b) Step=down linear transformer
(c) Step-down ideal transformer
(d) Step-downidewal transformer
(e) Autotransformer
Q428
Which of these transformers can be used as an isolation device?
(a) Linear transoformer
(b) Ideal transformer
(c) Autotransformer
(d) All of the above
Q429
A control system is
(a) To regulate the behavior of some variables
(b) To regulate the behavior of one variables
(c) To regulate the behavior of some variable in desired
(d) To regulate the behavior of some variable in manner
(e) None
Q430
Control engineering
(a) Integrates circuit theory & communication theory
(b) Is not limited to any specific engineering
(c) Both A & B
(d) None
Q431
The frequency response of a circuit is
(a) The variation in its behavior
(b) The variation in its behavior with change in signal frequency
(c) Both A & B
(d) None
Q432
The frequency response of circuit is the
(a) Variation of gain with frequency
(b) Variation of phase with frequency
(c) Both A & B
(d) None
Q433
Transfer function of circuit is the
(a) Frequency-dependent ratio
(b) Frequency-dependent ratio of phases output & input phase ‘
(c) Both A & B
(d) None
Q434
A zero as a root of the numerator polynomial is
(a) Value that result in infinite value of function
(b) Value that result in zero value of function
(c) Value that result in -ve value of function
(d) Value that result in +ve value of function
Q435
A pole, as a root of the denominator polynomial
(a) Is a value for which the function is zero
(b) Is a value for which the function is infinite
(c) Is a value for which the function is -ve
(d) Is a value for which the function is +ve
Q436
` A zero may be regarded as the
(a) Value of s = jw makes transfer function infinite
(b) Value of s = jw makes transfer function zero
(c) Value of s = jw makes transfer function – ve
(d) Value of s = jw makes transfer function + ve
Q437
A pole may be regarded as the
(a) Value of s = jw that makes transfer function infinite
(b) Value of s = jw that makes transfer function zero
(c) Value of s = jw that makes transfer function - ve
(d) Value of s = jw that makes transfer function + ve
Q438
Bode plots are
(a) Semilog plots of the magnitude
(b) Semilog plots of the phase
(c) Semilog plots of the magnitude of phase of transfer function verses
frequency
(d) None
Q439
A decade is
(a) An interval between frequencies
(b) An interval between frequencies with a ratio of 10
(c) Both A & B
(d) None
Q440
Resonance is a
(a) Condition in an RLC circuit
(b) In which capacitive & inductive reactances are equal
(c) Purely resistive impedance
(d) All above
Q441
At resonance
(a) Impedance is purely resistive
(b) P. F is unity
(c) Magnitude of transfer function is minimum
(d) The inductor voltage & capacitor voltage may be much more than source
volatge
(e) All abvoe
Q442
The quality factor of a resonance circuit is the
(a) Ratio of its resonance frequency to its bandwith
(b) Multiple of its resonance frequency to its bandwith
(c) Addition of its resonance frequency to its bandwit
(d) None
Q443
The quality factor is a measure of the
(a) Selectivily of resonance of the circuit
(b) Sharpness of resonance of the circuit
(c) Both A & B
(d) None
Q444
A filter is a
(a) Circuit that is designed to pan signals with desired frequencies
(b) Circuit that is designed to pan reject with desired frequencies
(c) Both A & B
(d) None
Q445
A lowpass filter
(a) Passes low frequencies & stops high frequency
(b) Passes high frequencies & stops low frequency
(c) Passes low frequencies & stops high frequency
(d) Passes high frequencies & stops low frequency
Q446
A high pass filter
(a) Passes low frequencies & stops high frequency
(b) Passes high frequencies & stops low frequency
(c) Passes low frequencies & stops high frequency
(d) Passes high frequencies & stops low frequency
Q447
A hand pass filter
(a) Passes frequencies outside frequency hand & blocks frequencies outside
hand
(b) Passes frequencies with frequency hand & blocks frequencies outsid
hand.
(c) Passes frequencies within a frequency hand &blocks frequencies outside
the hanb.
(d) None
Q448
A hand stop filter is that
(a) Passes frequencies outside a frequency hand & blocks frequencies with in
the band.
(b) Passes low frequencies & stop high frequencies
(c) Passeshigh frequencies & stop low frequencies
(d) None
Q449
A low pass filter is desgned to
(a) Pass only frequencies from dc up to cut off
(b) Pass only frequencies from 20+12 to 30+12
(c) Pass only frequencies from 50+12 to 500+12
(d) None
Q450
A high pass filter is to
(a) Pass all frequencies above its cutoff frequency
(b) Pass all frequencies below its cutoff frequency
(c) Pass all frequencies equal its cutoff frequency
(d) None
Q451
A hand pass filter is to
(a) Pass all frequencies within a band of frequencies
(b) Pass all frequencies outside a band of frequencies
(c) Pass all frequencies equal to a band of frequencies
(d) None
Q452
A band stop filter is to
(a) Stop all frequencies within a band of frequencies
(b) Stop all frequencies outside a band of frequencies
(c) Stop all frequencies equal to a band of frequencies
(d) None
Q453
A zero of the transfer function H(s) = 10(s+1)/(s+2)(s+3) is at
(a) 10
(b) -1
(c) -2
(d) -3
Q454
On the bode magintude plot, the slope of the pole 1/(5+jw)2 is
(a) 20 dB/decade
(b) 40 dB/decade
(c) -40 dB/decade
(d) -20 dB/decade
Q455
How much inductance is needed to resonate at 5 kHZ with a capacitance of 12
nF?
(a) 2652 H
(b) 11.844 H
(c) 3.333 H
(d) 84.43 H
Q456
The difference between the half-power frequencies is called the:
(a) Quality factor
(b) Resonant frequency
(c) Bandwidth
(d) Cutoff frequency
Q457
In a series RLC circuit which of these quality factors has the steepest curve at
resonance?
(a) Q = 20
(b) Q = 12
(c) Q = 8
(d) Q = 4
Q458
When the elements of an RLC circuit are both magnitude-scaled and frequency-
scaled, which quality is unaffected?
(a) Resistor
(b) Resonant frequency
(c) Bandwidth
(d) Quality factor
Q459
What kind of filter can be used to select a signal of one particular radio station
(a) Lowpass
(b) Highpass
(c) Bandpass
(d) Bandstop
Q460
A voltage source supplies a signal of constant amplitude, from 0 to 40kHZ ,to an
RC lowpass filter the load reasistor experiences the maximum voltage at:
(a) DC
(b) 10 kHZ
(c) 20 Khz
(d) 40 kHZ
Q461
Magnitude scaling is
(a) The process of increasing all impedances by a factor
(b) The process in which frequency response remain uncharged
(c) Both A & B
(d) None
Q462
Frequency scaling is
(a) The process of shifting the frequency response of network up / down the
frequency axis
(b) The process of in which impedance remanin same
(c) Both A & B
(d) None
Q463
Steps in applying the laplace transform are
(a) Transform the circuit to sdomain
(b) Solve the circuit by network techniques
(c) Take the inverse transform
(d) All above
Q464
The elegance of using the Laplace transform in circuit analysis lies in
(a) Automatic inclusion of the initail conditions
(b) Providing a complete solution
(c) Both A & B
(d) None
Q465
The transfer function is the ratio of the
(a) Output response to input excitation
(b) Output response to input excitation assuing all mitial conditions to be zero
(c) Both A & B
(d) None
Q466
The convolution of two signals consists of
(a) Time- reversing one of the signal
(b) Shifting one of the signal
(c) Multiplying point with second & integrating
(d) All above
Q467
Steps to evaluate convolution integral
(a) Folding
(b) Displacement
(c) Multiplication
(d) Integration
(e) All above
Q468
A circuit is stable when
(a) All zeros of its transfer function lie in the left half of the s-plane
(b) All poles of its transfer function lie in the left half of the s-plane
(c) All zeros of its transfer function lie in the right half of the s-plane
(d) None
Q469
Network synthesis is
(a) A finding a network
(b) A finding a network that represent a transfer function
(c) Both A & B
(d) None
Q470
The initial value of f(t)with transform F(s)=s+1 / (s + 2)(s + 3) is:
(a) Nonexistent
(b) 0
(c) 1
(d) 1 / 6
Q471
The variable s in the Laplace transform H(s) is called
(a) Complex frequency
(b) Transfer function
(c) Zero
(d) Pole
Q472
The zero of the function F(s)=s + 1 / (s + 2)(s + 3)(s + 4) is at
(a) - 4
(b) - 3
(c) - 2
(d) - 1
Q473
Fourier series of a periodic function is
(a) A representation that resolves the function
(b) A representation that resolves the function into d.c & a.c components
(c) A representation that resolves the function into infinite series of harmonics
(d) All above
Q474
The frequency response of signal
(a) Consist of the plots of magnitudes verses frequency
(b) Consist of the plots of phases verses frequency
(c) Both A & B
(d) None
Q475
Steps for appluing fourier series are
(a) Express the exatation as fourier series
(b) Find the response of each term
(c) Add the induvidual term
(d) All above
Q476
The exponential fourier series of periodic funciton describes
(a) The spectrum of function in terms of amplitude
(b) The spectrum of function in terms of phase angle
(c) Both A & B
(d) None
Q477
Which of the following are odd functions?
(a) Sin t + t2 cos t
(b) T sin t
(c) T 1n t
(d) T3 cos t
(e) Sin h t
Q478
If f(t) = 10 +8 cos t +4 cos 3t = 2 cos 5t + ... the magnitude of the dc component
is :
(a) 10
(b) 8
(c) 4
(d) 2
(e) 0
Q479
If f(t) = 10 + 8 cos t +4 cos 3t = 2 cos 5t + ... the angular frequency of the 6th
harmonic is
(a) 12
(b) 11
(c) 9
(d) 6
(e) 1
Q480
The instument for displying the spectrum of a signal is known as:
(a) Oscilloscope
(b) Spectrogram
(c) Spectrum analyzer
(d) Fourier spectrometer
Q481
Forier transform is
(a) An Integral transformation
(b) Transformation from time domain to frequency domain
(c) Both A & B
(d) None
Q482
A two port network is
(a) An electrical network
(b) Of ports for input & output
(c) Both A & B
(d) None
Q483
The six parameter used to model a two pot network are
(a) Impedance, admittance, hybrid
(b) Inverse hybrid, transmission, inverse transmission
(c) Both A & B
(d) None
Q484
When port 1 of a two-port circuit is short-circuited, I1 = 4I2 and V2=0.25I2
which of the following is true?
(a) Y 11 = 4
(b) Y 12 =16
(c) Y21 = 16
(d) Y22 = 0.25
Q485
A two-port is described by the following equations: V1 = 50 I1 = 10 I 2 / V2 = 30
I 1 + 20 I 2 which of the following is not true?
(a) Z12 = 10
(b) Y12 = - 0.00143
(c) H12 = 0.5
(d) B = 50
Q486
If a two-port is reciprocal, which of the following is not true?
(a) Z 21 = Z 12
(b) Y 21 = 12
(c) H21 = H12
(d) AD = BC +1
Q487
Cramer's rule is used to
(a) Solve simultaneous equaltion
(b) Take inverse of a matrix
(c) Both A & B
(d) None
Q488
A part from cramer's rule the other methods used for solving linear simultaneous
equaltions
(a) Calculators, computer
(b) Software package like matlab
(c) Both A & B
(d) None
Q489
Complex numbers are particularly useful in
(a) Analysis of d.c circuits
(b) Analysis of a.c circuits
(c) Analysis of complex circuits
(d) None
Q490
Complex numbers are represented in
(a) Polar form
(b) Cartesian form
(c) Both A & B
(d) None
Q491
The complex plan is
(a) Two dimensional
(b) Two dimensional curvilinear co - ordinate space
(c) It is not two dimensional Curilnear space
(d) None
Q492
Complex numbers are
(a) Not time dependent
(b) Frequency dependent
(c) Both A & B
(d) None
Q493
Spice stands for
(a) Simulation program with integrated circuit emphasis
(b) Special program with integrated circuit emphasis
(c) Simulataneous program with integrated circuit emphasis
(d) None
Q494
PSpice can handle
(a) 130 elements of 100 nodes
(b) 150 elements of 150 nodes
(c) 160 elements of 160 nodes
(d) None
Q495
The commen errors in pspice are
(a) Errors involving wiring of the circuits
(b) Errots that occur during simulation
(c) Both A & B
(d) None
Q496
The prefix micro stands for:
(a) 10 6
(b) 10 3
(c) 10- 3
(d) 10- 6
Q497
The voltage 2,000,000 V can be expressed in powers of 10 as:
(a) 2 mV
(b) 2 kV
(c) 2 MV
(d) 2 GV
Q498
The unit of current is:
(a) Coulomb
(b) Ampere
(c) Volt
(d) Joule
Q499
Voltage is measured in:
(a) Watts
(b) Amperes
(c) Volts
(d) Joules per second
Q500
The voltage across a 1.1 kW toaser that produces a current of 10 A is:
(a) 11 kV
(b) 1100 V
(c) 110 V
(d) 11 V
Q501
Which of these is not an electrical quantity?
(a) Charge
(b) Time
(c) Voltage
(d) Current
(e) Power
Q502
The reciprocal of resistance is:
(a) Voltage
(b) Current
(c) Conductance
(d) Coulombs
Q503
An electric heater draws 10 a from a 120- V line.
(a) 1200 ohm
(b) 120 ohm
(c) 12 ohm
(d) 1.2 ohm
ANSWERS
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AN
1 C 53 A 105 A 157 D 209 A 261 C 313 C 365 D 417 C 469 B
2 A 54 B 106 C 158 D 210 C 262 A 314 D 366 - 418 A 470 C
3 B 55 C 107 D 159 A 211 D 263 B 315 E 367 A 419 D 471 A
4 A 56 D 108 D 160 A 212 C 264 C 316 C 368 C 420 A 472 ABC
5 A 57 A 109 D 161 C 213 C 265 D 317 D 369 C 421 B 473 D
6 D 58 C 110 C 162 D 214 D 266 C 318 C 370 A 422 D 474 C
7 D 59 C 111 C 163 A 215 D 267 C 319 C 371 C 423 D 475 D
8 C 60 A 112 C 164 C 216 D 268 C 320 B 372 A 424 A 476 C
9 C 61 C 113 C 165 A 217 B 269 C 321 C 373 C 425 B 477 DE
10 A 62 C 114 B 166 C 218 D 270 D 322 A 374 C 426 B 478 A
11 A 63 C 115 D 167 D 219 A 271 C 323 C 375 C 427 D 479 D
12 C 64 C 116 C 168 A 220 B 272 E 324 A 376 D 428 B 480 C
13 D 65 C 117 A 169 C 221 D 273 D 325 E 377 D 429 C 481 C
14 C 66 C 118 B 170 D 222 A 274 C 326 A 378 C 430 C 482 C
15 C 67 A 119 A 171 A 223 C 275 A 327 C 379 C 431 B 483 C
16 C 68 B 120 D 172 A 224 B 276 D 328 C 380 C 432 C 484 B
17 A 69 C 121 D 173 C 225 D 277 A 329 B 381 C 433 B 485 D
18 B 70 D 122 B 174 C 226 D 278 C 330 A 382 A 434 B 486 C
19 C 71 A 123 C 175 A 227 C 279 C 331 C 383 B 435 B 487 C
20 D 72 A 124 C 176 B 228 D 280 A 332 C 384 A 436 B 488 C
21 A 73 C 125 C 177 D 229 C 281 D 333 D 385 A 437 A 489 B
22 B 74 C 126 B 178 D 230 D 282 C 334 A 386 C 438 C 490 C
23 C 75 A 127 A 179 A 231 B 283 A 335 A 387 C 439 B 491 C
24 D 76 A 128 B 180 A 232 D 284 A 336 C 388 D 440 D 492 C
25 A 77 D 129 A 181 D 233 B 285 A 337 A 389 C 441 E 493 A
26
B 78 A 130 B 182 C 234 B 286 A 338 D 390 C 442 A 494 A
27 C 79 B 131 A 183 A 235 A 287 C 339 B 391 D 443 C 495 C
28 D 80 C 132 C 184 A 236 B 288 A 340 B 392 C 444 C 496 D
29 B 81 C 133 C 185 C 237 C 289 A 341 A 393 C 445 A 497 C
30 B 82 A 134 C 186 B 238 C 290 C 342 C 394 D 446 B 498 B
31 C 83 C 135 D 187 A 239 D 291 D 343 C 395 D 447 C 499 C
32 D 84 B 136 E 188 C 240 - 292 - 344 C 396 C 448 A 500 C
33 A 85 B 137 C 189 C 241 D 293 C 345 C 397 C 449 A 501 B
34 A 86 C 138 D 190 C 242 C 294 C 346 C 398 C 450 A 502 C
35 B 87 A 139 C 191 C 243 C 295 C 347 A 399 C 451 A 503 C
36 D 88 C 140 C 192 C 244 E 296 C 348 A 400 A 452 A
37 C 89 D 141 C 193 C 245 C 297 C 349 A 401 B 453 B
38 C 90 D 142 C 194 D 246 A 298 B 350 A 402 B 454 C
39 C 91 C 143 C 195 E 247 B 299 B 351 C 403 C 455 D
40 A 92 C 144 D 196 D 248 B 300 D 352 B 404 C 456 C
41 A 93 D 145 A 197 C 249 B 301 D 353 C 405 C 457 A
42 C 94 C 146 C 198 B 250 C 302 A 354 B 406 C 458 D
43 A 95 A 147 C 199 C 251 A 303 C 355 E 407 C 459 C
44 B 96 D 148 C 200 B 252 B 304 A 356 C 408 A 460 A
45 A 97 C 149 C 201 C 253 B 305 C 357 A 409 C 461 C
46 C 98 C 150 C 202 C 254 D 306 D 358 C 410 E 462 C
47 C 99 C 151 D 203 D 255 D 307 A 359 D 411 C 463 D
48 C 100 A 152 C 204 D 256 C 308 C 360 C 412 D 464 C
49 B 101 C 153 C 205 D 257 C 309 A 361 C 413 D 465 B
50 A 102 A 154 C 206 D 258 A 310 C 362 C 414 D 466 D
51 C 103 A 155 D 207 C 259 D 311 D 363 C 415 D 467 E
52 C 104 A 156 A 208 A 260 D 312 D 364 C 416 A 468 B
