chapter 8

Chapter 8 Industrial Electronics

1. An android takes the form of:a. An insectb. A human bodyc. A simple robot armd. Binocular vision

2. According to Asimov’s three laws, under what circumstances is it all right for a robot to injure a human being?a. Under no circumstancesb. When the human being specifically requests itc. In case of an accidentd. In case the robot controller is infected with a computer virus

3. Articulated robot arm is called .a. Jointed-arm configurationb. SCARAc. Stewart platformd. Dexterity arm

4. have lesser load capacity than electric or hydraulic actuators.a. Ecstatic robotsb. Mechanic robotsc. Pneumatic robotsd. Dyslectic robots

5. Positive-stop robots are sometimes called limited sequence, , or non-servo-controlled.a. Bang-bangb. Boom-boomc. Toinks-toinksd. Tgish-tgish

6. is a hand-held switch enclosure linked by cable to the robot’s microcomputer.a. strowger switchb. allen switchc. teach pendantd. cable switch

7. Manifold’s multihole surface is called ?a. Blowholeb. Manholec. Scaffold holed. Vacuum surface

8. has an air-tight expandable diaphragm on the outside surface of a mandrel that is inserted into a cavity on the object to be gripped.a. Mandrel gripperb. Manic gripc. Pneumatic handd. Esophageal gripper


9. An RF field strength meter can be used toa. Test the performance of a binaural hearing systemb. Detect the presence of ionized airc. Measure the dielectric constant of aird. Detect the presence of a wireless bugging system

10. The extent to which a machine vision system can differentiate between two objects is called the:a. Optical magnificationb. Optical sensitivityc. Optical selectivityd. Optical resolution

11. A robot car might best keep itself travelling down a specific lane of traffic by using:a. Stereoscopic machine hearingb. Epipolar navigationc. Edge detectiond. Proximity sensing

12. A rule-based system is also known as:a. A logic gateb. An expert systemc. A back-pressure sensord. A telechir

13. Suppose you are using a battery-powered, multichannel baby monitor, and you hear one end of a two-way radio conversation on the receiver. You check the baby’s room, and its quiet. How might this problem be resolved?a. Put the receiver in a different locationb. Switch the monitor to a different channelc. Interchange the transmitting and receiving unitsd. Use ac power instead of battery power

14. In robotics, a manipulator is also known as a:a. A robot propulsion systemb. A robot arm, and the device at its end (such a gripper)c. The system used to remotely control a telechird. A computer that guides a fleet of mobile robots

15. A device with an IR sensor can be used to detect the presence ofa. Slow moving objectsb. RF signalsc. Ionized aird. Warm or hot objects

16. Proximity sensing is most closely akin to:a. Direction measurementb. Edge detectionc. Range plottingd. Binaural machine hearing


17. A telechir is used in conjunction with a sprecialized system of:a. Track driveb. Wheel drivec. Remote controld. Ionization potential measurement

18. A limit to the distance over which telepresence is practical is imposed by:a. The speed of EM wave propagationb. The image resolution of the vision systemc. The ability of a robot to determine textured. All of the above

19. The ionization potential of the air can be determined in order to a. Detect smokeb. Plot distances and directionsc. Measure slopesd. Detect boundaries

20. Two dimensional range plottinga. Takes place along a single geometric lineb. Takes place in a single geometric placec. Is done using spherical coordinatesd. Requires an ultrasonic sonar system

21. Spherical coordinates can uniquely define the position of a point in up to:a. One dimensionb. Two dimensionsc. Three dimensionsd. Four dimensions

22. The total number of ways in which a robot arm can move is known as:a. Functional orientationb. Degrees of freedomc. Degrees of arcd. Coordinate geometry

23. The region throughout which a robot arm can move is known as:a. Coordinate geometryb. Reference axisc. Reference framed. Work envelope

24. A robot arm that moves along three independent axes, each of which is straight and perpendicular to the other two, employs:a. Revolute geometryb. Spherical coordinate geometryc. Cartesian coordinate geometryd. Cylindrical coordinate geometry


25. A color vision system can use three gray-scale cameras, equipped with filters that allow which three colors of light to pass?a. Blue, red, and yellowb. Blue, red, and greenc. Cyan, magenta, and yellowd. Orange, green, and violet

26. A robot can determine the steepness of a slope using a(n):a. Epipolar navigation systemb. Clinometerc. End effectord. Manipulator

27. Which of the following devices can be used to limit the torque or force applied by an electromechanical device such as a robot?a. A back pressure sensorb. A capacitive proximity sensorc. A dynamic transducerd. An optical shaft encoder

28. A current-controlling resistance device designed to maintain substantially constant current over a specified range of variation in applied voltage or resistance of a series circuit.a. Ballastb. Vocoderc. Thermocoupled. Amplidyne

29. An inductor used to impede the flow of pulsating dc or ac by means of self-inductancea. Biasingb. Cloakc. Choked. Diode

30. Referred to as extinction potential for gas-filled tubes.a. Deionization potentialb. Dead groundc. Extinct groundd. Killed potential

31. Also called Richardson effect, the phenomenon wherein electrons emitted from heated element within a vacuum tube will flow to a second element that is connected to a positive potential.a. Hall effectb. Edison effectc. Seebeck effectd. Second effect

32. An earlier name for a diode or two electrode vacuum tube.a. Triodeb. Round tubec. Fleming valved. Audion tube


33. An alkali metal introduced into a vacuum tube during manufacture. It is fired after the tube has been evacuated to react chemically and eliminate any remaining gases.a. Ionizerb. Killerc. Suckerd. Getter

34. Emission of electrons from solid body as a result of elevated temperature.a. Radiationb. Gamma radiationc. Stimulated emissiond. Thermionic emission

35. Which of the following ac filament voltages is most likely to be considered a common voltage?a. 1.5 Vb. 3.9 Vc. 6.3 Vd. 9.0 V

36. Electron tubes are identified by a number preceded by which letter?a. Tb. Vc. ETd. VT

37. Which of the following is a name given to the variable-mu tube?a. Sharp-cutoff tubeb. Remote-cutoffc. Variable-spaced tubed. Reversible-bias tube

38. What minimum amount of time must the filaments of mercury-vapor tube have voltage applied before the plate voltage is applied to the tube/a. 0.5 minb. 1.5 minc. 2.5 mind. 3.0 min

39. When a gas-filled triode ionizes, the grid loses control and the tube behaves as …… ?a. Diodeb. Triodec. Duo-dioded. Trigatron

40. The inward bursting of CRT due to high vacuum.a. Fusionb. Fissionc. Explosiond. Implosion


41. An electrical charge distributed troughout a volume or space.a. Space chargeb. Natural voltagec. Distributed potentiald. Radiation

42. A special coating of conductive material, such as graphite applied in a CRT.a. Dark matterb. Dielectric materialc. Aquadagd. Phosphor

43. The part of a switch that is acted upon to cause the switch to change contact connections.a. Leverb. Contact pointsc. Make and breakd. Actuator

44. A tool used to clean and polish contacts on a relay.a. Wiperb. Cleanerc. Burnishing toold. Flushing tool

45. The cylindrical metallic ends of a cartridge fuse.a. Metal capsb. Hot leadsc. Terminalsd. Ferrules

46. A circuit breaker that can held ON during an overcurrent condition.a. Nontrip-freeb. Trip-freec. Busted breakerd. Out-of-circuit breaker

47. A tool used to adjust the contact spacing on a relay.a. Nipperb. Pullerc. Holderd. Point bender

48. A multicontact switch with contacts arranged in a circular manner.a. Polar switch b. Circular switchc. Rotary switchd. Waving switch


49. The part of a circuit breaker that senses any overload.a. Sensing elementb. Trip elementc. Wait elementd. Loading element

50. How are circuit protection devices connected to the circuit they are protecting?a. Alongsideb. In seriesc. In paralleld. Series-parallel

51. Which of the following methods will provide an absolute determination as wheter or not a fuse is open?a. Visual inspectionb. Fuse indicatorc. Voltmeter checkd. Temperature check

52. A fuse is removed from a circuit, checked with an ohmmeter, and found to be shorted. What action should be taken?a. Discard the fuseb. Check it with voltmeterc. Put it backd. Return to the store

53. What should you use to remove a fuse from a clip-type fuseholder?a. A scribeb. A fusepullerc. A screwdriverd. A pair of pliers

54. is the simplest circuit protection device.a. Breakerb. Switchc. Relayd. Fuse

55. confines, divides and extinguishes the arc drawn between contacts every time the circuit breaker interrupts current.a. Arc reducer b. Arc of the centuryc. Arc extinguisherd. Trip eliminator

56. is a condition in which some point in the circuit, where full system voltage is present, comes in direct contact with the ground or return side of the circuit.a. Dead groundb. Killed groundc. Direct shortd. Chassis ground


57. The thermal trip elements of fuses are .a. very high conductivity metalsb. high melting point metalsc. bimettalic elementsd. liquid metals

58. is a switch in which the movement of the switch mechanism is relatively independent of the activating mechanism movement.a. Accurate switchb. Manual switchc. Snap-acting switchd. Make-break switch

59. Most switches are designed to operate times or more without failure if the voltage and current ratings are not exceeded.a. 1000b. 10000c. 100000d. None

60. In preventive maintenance for fuse which is not to be checked?a. Corrosionb. Shorted fusec. Improper fitd. Improper fuse

61. What is the total number of main components in a circuit breaker?a. 2b. 3c. 4d. 5

62. Which of the following is not a time-delay rating for a circuit breaker?a. Longb. Shortc. Standardd. Instantaneous

63. Which is not a type of trip element for circuit breaker?a. Thermalb. Magneticc. Mechanicald. Thermal-magnetic

64. is an accurate snap-acting switch and the operating point is preset and very accurately known.a. Miniswitchb. Macroswitchc. Microswitchd. Manual switch


65. is the movable portion of a relay.a. Solenoidb. Contact pointsc. Burnishing pointd. Armature

66. If a solenoid is not working properly, which is not to be checked?a. Coilb. Armaturec. Plungerd. Energizing voltage

67. is a solid-state semiconductor device with four layers, acts as switch.a. Diodeb. Triodec. Thyristord. Thyratron

68. A thyristor has a. Two pn junctionsb. Three pn junctionsc. Four pn junctionsd. Only two terminals

69. Common types of thyristors includea. BJTs and SCRsb. UJTs and PUTsc. FETs and triacsd. Diacs and triacs

70. A 4-layer diode turns on when the anode to cathode voltage exceedsa. 0.7 Vb. The gate voltagec. The forward-breakover voltaged. The forward-blocking voltage

71. A gas filled tube version of a thyristor.a. Thyratronb. Thyristor tubec. Megatrond. Meg unit

72. SCR is a tradename of what company?a. Bell labsb. Fairchild semiconc. IBMd. GE


73. is an electrical circuit used to prevent an overvoltage condition of a power supply unit from damaging the circuits attached to the power supply. It operates by putting a short circuit or low resistance path across the voltage source, much as if one dropped a tool of the same name across the output terminals of the power supply. These circuits are frequently implemented using a thyristor.a. Bridgeb. Bypassc. Crowbard. Link

74. is a special type of thyristor, a high-power semiconductor device. As opposed to normal thyristors, they are fully controllable switches which can be turned on and off by their third lead, the GATE lead.a. Diodeb. Triodec. GTOd. HVDC

75. is approximately equivalent to two complementary unilateral thyristors (one is anode triggered and another is cathode triggered SCR)njoined in inverse parallel (paralleled but with the polarity reversed) and with their gates connected together.a. DIACb. TRIACc. SCRd. SHOCKLEY DIODE

76. is a thyristor with a buried gate structure in which the gate electrodes are placed in n-base region.a. Static Induction Thyristorb. Buried Gate Thyristorc. Gated Thyristord. FET

77. is voltage controlled fully controllable thyristor. This is similar in operation with GTO thyristor, but it has voltage controlled insulated gate.a. Thyratronb. Megatronc. Cyclotrond. MOS-controlled Thyristor

78. is a power semiconductor electronic device, used for switching electric current in industrial equipment.a. Integrated Gate-Commutated Thyristorb. Power Gated Thyristorc. Electronic Power Thyristord. Insulated Gate Power Thyristor

79. In UJTs, what is produced once the emitter voltage is raised to the start of IB?a. Negative resistanceb. Peak voltagec. Pinch off voltaged. Interbase voltage


80. UJT is useful in the construction ofa. Timing circuitsb. One-shotc. SCR trigger control circuitsd. Any of these

81. Which of the following is not a characteristic of the UJT?a. Intrinsic standoff ratiob. Negative resistancec. Peak point voltaged. Bilateral condition

82. The PUT isa. Much like a UJTb. Not a thyristorc. Triggered on and off by the gate-to-anode voltaged. Not a four-layer device

83. A pnpn device whose state is controlled by the magnitude of the gate current.a. SCRb. UJTc. DIACd. BJT

84. How many layers are there in an SCR?a. Twob. Threec. Fourd. five

85. What must be done to start current in an SCR?a. Reverse-bias the gate b. Forward-bias the gatec. Forward-bias the anode and cathoded. Reverse-bias the anode and cathode

86. When an SCR is turned ON, there is a low-resistance current flow path from ….. .a. Anode to cathodeb. Cathode to anodec. Any directiond. Cannot say

87. It is the number of degrees of an AC cycle during which the SCR is turned on.a. Firing delay angleb. Insulation anglec. Conduction angled. Delay angle


88. It is the number of degrees of an AC cycle that elapses before the SCR is turned on.a. Firing delay angleb. Insulation anglec. Conduction angled. Delay angle

89. Most SCRs require a gate current of betweena. 0.3-5 mAb. 0.2-10mAc. 0.8-30mAd. 0.1-50mA

90. What is the voltage between the gate and cathode of an SCR?a. 0.9Vb. 1Vc. 0.6Vd. 3V

91. When the current through anode and cathode of an SCR falls below some minimum value, the SCR will turn off. What is this minimum value called?a. Dropping currentb. Holding currentc. Switching current d. Knee current

92. The value of the anode current at the point where the device switches from the forward-blocking region to forward-conduction region.a. Dropping currentb. Holding currentc. Switching current d. Knee current

93. It is the value of anode current necessary to switch the SCR from the forward-blocking region to the forward-conduction region under specified condition.a. Gate trigger currentb. Average forward currentc. Holding currentd. Forward-blocking current.

94. This is the maximum continuous anode current that the device can withstand in the condition state under specified condition of an SCR.a. Gate trigger currentb. Average forward currentc. Holding currentd. Forward-blocking current

95. This region corresponds to the on condition of the SCR where there is forward current from anode to cathode through the very low resistance of the SCR.a. Forward conduction regionb. Forward blocking regionc. Reverse blocking region


d. Reverse conduction region

96. In SCRs, the gate control circuit is also known asa. Supply circuitb. Switch circuitc. Triggering circuitd. Gate circuit

97. Why are SCRs usually used in ac circuits?a. Reverse cycle turns them on.b. Reverse cycle turns them offc. Because of buffer effectd. Because of good conduction time

98. What is the name of a single-unit solid-state two-way SCR?a. Triacb. Diacc. SUSd. SBS

99. It is a three-terminal device used to control the average current flow to a load.a. DIACb. TRIACc. PUTd. UJT

100. TRIAC can conduct ina. Forward directionb. Reverse directionc. Either forward or reverse directiond. Cannot say

101. TRIACs have terminals namely;a. gate, anode, and cathodeb. base, anode and cathodec. gate, cathode 1 and cathode 2d. gate, anode 1 and anode 2

102. In Triacs, when the voltage is more positive on anode 2, the current flows froma. Gate to anode 1b. Anode 2 to anode 1c. Anode 1 to anode 2d. Gate to anode 2

103. In Triacs, when the voltage is more positive on anode 1, the current flows froma. Gate to anode 1b. Anode 2 to anode 1c. Anode 1 to anode 2d. Gate to anode 2


104. A Triac if properly triggered can conduct for a fulla. 90 degreesb. 180 degreesc. 270 degreesd. 360 degrees

105. Most medium-sized triacs have a gate voltage of abouta. 0.5-2Vb. 0.6-2Vc. 1-3Vd. 1-5V

106. Most medium-sized triacs have a gate current of abouta. 1-5 mAb. 0.5-7mAc. 0.1-20mAd. 0.1-10mA

107. When a triac is biased with an external voltage more positive on anode 2 it is calleda. Forward biasb. Reverse biasc. No biasd. Impossible to say

108. When a triac is biased with an external voltage more positive on anode 2 it is calleda. Forward biasb. Reverse biasc. No biasd. Impossible to say

109. Most medium-sized triacs have holding current of less thana. 1mAb. 10mAc. 100mAd. 1000mA

110. The maximum rate of rise of the main terminal voltage triacs can withstand.a. Holding ratingb. Working voltage ratingc. dv/dt ratingd. dc/dt rating

111. The dv/dt rating of medium-sized triacs is arounda. 25 V/microsecondb. 50V/microsecondc. 75V/microsecondd. 100V/microsecond


112. The batch spread among diacs isa. 1Vb. 2Vc. 3Vd. 4V

113. A diac is also known asA. Bidirectional trigger diodeB. Symmetrical trigger diodeC. Gate trigger diodeD. Anode trigger diode

a. A and B onlyb. A, B and C onlyc. A and C onlyd. A, B, C and D

114. The difference in magnitude between forward breakover and reverse breakover voltage in diac isa. 1Vb. 2Vc. 3Vd. 4V

115. The SCS differs from the SCR becausea. It does not have a gate terminalb. Its holding current is lessc. It can handle much higher currentd. It has two gate terminals

116. The SCS can be turned on by a. An anode voltage exceeds forward-breakover voltageb. A positive pulse on the cathode gatec. A negative pulse on the anode gated. Either a positive pulse on the cathode gate or a negative pulse on the anode gate

117. In SBS (Silicon Bilateral Switch), the most popular rating of voltage trigger isa. +/-5 Vb. +/-6Vc. +/-7Vd. +/-8V

118. SBS is said to have a breakback voltage of a. 5Vb. 6Vc. 7Vd. 8V

119. Modern SBS has a temperature coefficient of abouta. +0.01%/ deg Cb. +0.02%/deg Cc. +0.03%/deg C


d. +0.04%/deg C

120. SBSs are symmetrical to within abouta. 0.1Vb. 0.2Vc. 0.3Vd. 0.4V

121. The batch spread of SBSs is less thana. 0.1Vb. 0.2Vc. 0.3Vd. 0.4V

122. Using a gated SBS for the trigger control of a triac is that it can eliminatea. Flash-on effectb. Leakage currentc. Surge currentd. Corona

123. SUS (Silicon Unilateral Switch) can be fired at a very low anode to cathode voltage of abouta. 4Vb. 3Vc. 2Vd. 1V

124. Most SUSs have a breakover voltage ofa. 6Vb. 7Vc. 8Vd. 1V

125. Most SUSs have current limit of less thana. 1Ab. 2Ac. 3Ad. 4A

126. The possible triggering modes of a triac are:A. Positive main terminal voltage, positive gate currentB. Positive main terminal voltage, negative gate currentC. Negative main terminal voltage, negative gate currentD. Negative main terminal voltage, positive gate current

a. A and B onlyb. B and C onlyc. B, C and D onlyd. A, B, C and D


127. It is a three-terminal device having characteristics very similar to BJT with a base and collector current sensitive to the incident light intensity.

a. Photodiodeb. Phototransistorc. Optoisolatord. Photodetector

128. In a phototransistor, base current isa. Set by a bias voltageb. Directly proportional to lightc. Inversely proportional to lightd. Not a factor

129. It contains an infrared LED and a photodetector to provide a linkage between systems that does not require a direct connection.

a. Photodiodeb. Phototransistorc. Optoisolatord. Photodetector

130. A welding sequence where the electrode engages the metal, they are allowed to press against the surfaces for a short time before the welding current is turned on.

a. Squeezeb. Weldc. Holdd. Standby

131. In welding, squeeze time is abouta. 1 secondb. 2 secondc. 3 secondd. 4 second

132. In this welding sequence, the welding transformer is energizeda. Squeezeb. Weldc. Holdd. Standby

133. Weld interval usually takes froma. 5 to 10 sec b. 3 to 6 secc. 2 to 10 secd. 1 to 6 sec

134. The welding current is turned on and off in short burst, this is calleda. Skipb. Hopc. Pulsationd. Any of these


135. In welding, pulsations is completeda. Each time three cycles of current are completedb. Each time four cycles of current are completedc. Each time five cycles of current are completedd. Each time six cycles of current are completed

136. The portions of the weld interval during which welding current is flowing are calleda. Cool subintervalb. Luke subintervalc. Standby subintervald. Hot subinterval

137. The portions of the weld interval during which welding is not flowing are calleda. Cool subintervalb. Luke subintervalc. Standby subintervald. Hot subinterval

138. Welding sequence when electrodes pressure is maintained on the metal surfaces, but the welding current is turned off

a. Standbyb. Sequencec. Holdd. Release

139. During interval the welding electrode cylinders are retracted, releasing the wheel from the electrode.

a. Standbyb. Sequencec. Holdd. Release

140. The system enters the release interval after the hold interval which will lasts for abouta. 1 secondb. 2 secondc. 3 secondd. 4 second

141. The following are thyristor devicesA. SCRB. triacC. diacD. UJTE. PUT

a. A,B,C and E onlyb. A, B and C onlyc. A, B and E onlyd. A, B, C, D and E


142. Which SCR is turned on by high-frequency radiations?a. NASCARb. MADAGASCARc. LASCRd. ASCR

143. It is the most common electrical transducera. Scannerb. Potentiometerc. Thermocoupled. Crystal

144. The movable contact of a potentiometer is also known asa. Tapb. Wiperc. Sliderd. Any of these

145. The resistive element of a potentiometer is usually drawn in circular form in which the resistive element is circular and spans an angle of about .

a. 180 degreesb. 270 degreesc. 300 degreesd. 360 degrees

146. The great majority of potentiometers area. Precisionb. General purposec. Lineard. Exponential

147. Many potentiometers are of variety.a. Metal filmb. Carbon filmc. Ceramicd. Wire wound

148. A pressure transducer that is deformed metal tube with an oval cross sectiona. Helixb. Twisterc. Bellowsd. Bourdon tube

149. A pressure transducer that is essentially a series of metal diaphragms connected together.a. Helixb. Twisterc. Bellowsd. Bourdon tube


150. It is a pair of dissimilar metal wires joined together in a complete loop used for measuring industrial process temperatures.

a. Thermocoupleb. Piezoelectric devicec. Potentiometerd. Junction meter

151. One junction of a thermocouple is called because it is subjected to high temperatures.a. Cold junctionb. Hot junctionc. Luke junctiond. Mixed junction

152. One junction of a thermocouple is called because it is subjected to low temperatures.a. Cold junctionb. Hot junctionc. Luke junctiond. Mixed junction

153. A small voltage is produced at each junction of the dissimilar metals due to an obscure phenomenon called.

a. Thermionic effectb. Piezoelectric effectc. Seebeck effectd. Fabrot effect

154. E thermocouples are known as composed of materials.a. Chromelb. Iron-Constantanc. Alumeld. Pure Platinum

155. J thermocouples are known as composed of materials.a. Chromelb. Iron-Constantanc. Alumeld. Pure Platinum

156. K thermocouples are known as composed of materials.a. Manganinb. Iron-Constantanc. Alumeld. Pure Platinum

157. R thermocouples are known as composed of materials.a. Chromelb. Iron-Constantanc. Alumeld. Pure Platinum


158. When a pure metal wire is used for temperature measurement, it is referred to asa. Resistive temperature detectorb. Inductive temperature detectorc. Capacitive temperature detectord. Metallic temperature detector

159. Resistive temperature detector has a temperature coefficienta. Positiveb. Negativec. Either positive or negatived. Zero

160. When metallic oxides are used for temperature measurement, the metallic oxide material is formed into shapes which resemble small bulbs or small capacitors. This material is called

a. Thermocoupleb. Thermistorc. Barreterd. Any of these

161. Thermistor has temperature coefficient.a. Positiveb. Negativec. Either positive or negatived. Zero

162. is a device used to suppress voltage transients in electrical systems, pressure transients in fluid systems, or excess force or rapid movement in mechanical systems.

a. Suppressorb. Compressorc. Snubberd. Tickler

163. is an electrical transformer with only one windinga. Amplidyneb. Autotransformerc. Faraday’s whiskersd. Klystron

164. is a three-terminal resistor with a sliding contact that forms an adjustable voltage dividera.C resistorb. Potentiometerc. Rheostatd. Trimmers

165. Linear potentiometers are sometimes called .a. Clampersb. Fadersc. Floppersd. Equalizers


166. Diode bridge is also known as .a. Wein bridgeb. Edison bridgec. Zemansky bridged. Graetz circuit

167. are special type of thyristor which combines a “diac” and a “triac” in a single package. The diac is the triggering device for the triac.

a. Sindracsb. Tundracsc. Badracsd. Quadracs

168. The counterclockwise angular displacement of a synchro rotor, measured in degrees from its electrical zero point, as viewed from the shaft extension end of the synchro.

a. Accelerationb. Angular positionc. Apparent driftd. Precession

169. The effect of the Earth’s rotation on a gyro, which causes the spinning axis to appear to make one complete rotation in one day.

a. Precessionb. Axis tiltc. Apparent driftd. Faraday’s rotation

170. A group of components, systematically organized to perform a specific control purpose.a. Control systemb. Laplace transformc. Industrial electronicsd. Robotics

171. A mechanical or electrical technique used in synchro receivers to prevent the rotor from oscillating or spinning.

a. Brakesb. Clutchc. Dampingd. Recoil

172. A fine and coarse synchro receiver enclosed in a common housing with two-shaft output.a. Dual-in-line packageb. Double receiverc. Buy-one-take-oned. Correspondence

173. The term given to the positions of the rotors of a synchro transmitter and a synchro receiver when both rotors are on 0 or displaced from 0 by the same angle.

a. Resonanceb. Tandemc. Dual tuned


d. Correspondence

174. The rotation of the spin axis of a gyro in response to an applied forcea. Axis of spinb. Precessionc. Stand pointd. Position

175. A gyro used to detect and measure angular changea. Stand-alone gyrob. Rigid gyroc. Rate gyrod. Magnetic gyro

176. A rotary, electromechanical device used to perform trigonometric computations by varying the magnetic couplings between its primary and secondary windings.

a. Gyrob. Synchroc. Servod. Resolver

177. The tendency of the spin axis of a gyro wheel to remain in a fixed direction in space if no force is applied to it.

a. Rigidityb. Precessionc. Accuracyd. Degree of freedom

178. A mechanical frame, with two perpendicular intersecting axes of rotation, used to support and furnish a gyro wheel with the necessary freedom to tilt in any direction.

a. Structureb. Scaffoldc. Gimbald. Gondola

179. A mechanical device containing a spinning mass mounted so that it can assume any position in space

a. Gimbalb. Gyroscopec. Synchrod. Servo

180. The term used describe the use of unequal resistors in a servo’s summing network to compensate for differences between input and output signal levels.

a. Scaling factorb. Servo errorc. Resultant Leveld. Servo vector


181. The angle through which a synchro transmitter rotor is mechanically turned.a. Bearingb. Azimuthc. Signald. Degrees of freedom

182. A vector representing the angular velocity of the gyro rotor.a. Speedb. Flywheel vectorc. Rotationd. Spin vector

183. A delay in a servo system between the application of the input signal and the actual movement of the load.

a. Torque Lagb. Time Lagc. Servo Delayd. Damping

184. The process of adjusting a synchro to its electrical zero position.a. Adjustingb. Bankingc. Nullingd. Zeroing

185. In a gyro, an axis through the center of gravity and perpendicular to the spin axis.a. X-axisb. Y-axisc. Z-axisd. none of the above

186. The spin axis of a gyro.a. X-axisb. Y-axisc. Z-axisd. none of the above

187. IC synchro stands for .a. Interior communication synchrob. Integrated circuit synchroc. Industrial-compliant synchrod. None of the above

188. Force acting through the center of gravity of the gyro that causes no torque on the gyro rotor.a. Torqueb. Biasc. Tiltd. Translation


189. A low voltage used in multispeed synchro systems to prevent false synchronization.a. Bias Voltageb. True Voltagec. Clear Voltaged. Stickoff Voltage

190. A data transmissions system that operates on DC.a. Step-Transmission Systemb. DC systemc. Non-ACd. Stator

191. Gyroscope was coined by .a. Leon Theveninb. Leon Foucaultc. Leon Kilatd. Leon Jacquard

192. determines the direction of precession.a. Left-hand ruleb. Right-hand rulec. No-hand ruled. All-hands rule

193. A humanoid robot designed to look like a human female is called .a. androidb. femnoidc. gynoidd. toroid

194. is the collective behavior of decentralized, self-organized systems, natural or artificial and is employed I work on artificial intelligence.

a. Artificial Intelligenceb. Swarm Intelligencec. Collective Intelligenced. Colonial Intelligence

195. Sony’s AIBO stands for .a. Automatic and Intelligent Botb. Artificial Intelligence Robotc. Artificial Intuition botd. Auto-initiated Brained robot

196. ASIMO stands for .a. Automatic Simulated Intelligence and Movementsb. Automated Simulation of Movementsc. Advanced Step in Innovative Mobilityd. Another Silly Man-made Object


197. The word “robot” was introduced to the public by .a. Isaac Asimovb. Karel Capekc. Paul Sagand. Marvin Minsky

198. The word “robotics” was coined by . .

a. Isaac Asimovb. Karel Capekc. Paul Sagand. Marvin Minsky

199. A largely hypothetical technology of creating machines or robots at or close to the scale of nanometer.

a. Nanoroboticsb. Artificial intelligencec. Nanotechd. DNA Robotics

200. is a bipedal humanoid robot designed to play ping pong.a. AIBOb. TOPIOc. SCARAd. DEEP BLUE

201. is a robot designed by MIT intended to participate in human social interaction and simulated emotions.

a. Dracob. Gagac. Kismetd. Bibo

202. He is regarded as the originator of cybernetics.a. Seymour Crayb. Tim Berners-Leec. Netopiad. Norbert Wiener

203. Considered as the Father of Robotics.a. Isaac Asimovb. Karel Capekc. Joseph Engelbergerd. Marvin Minsky

204. Considered as the Father of Artificial Intelligence.a. Claude Shannonb. Paul Saganc. Joseph Engelbergerd. Marvin Minsky


205. Considered as the Father of Information Theory.a. Claude Shannonb. Reginald Fessendenc. John Hartlyd. Marvin Minsky

206. Considered as the Father of Computer Science.a. Allan Turingb. Claude Shannonc. Alonzo Churchd. Tedd Hoff

207. The first industrial robot is . a. Claudiob. Julia Robotsc. Scaradiodd. Unimate

208. The most common mechanical configuration for industrial robots is a. Articulated arm configurationb. Spherical arm configurationc. Cylindrical configurationd. Any of these

209. Articulated arm configuration is also known asa. Jointed arm configurationb. Spherical arm configurationc. Cylindrical configurationd. Any of these

210. It is derived from the fact that movement about one axis is hardware-independent of movement about any other axis.

a. Degrees of movementb. Degrees of axisc. Degrees of freedomd. Degrees of independency

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chapter 8