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8/12/2019 Measurement Important Question
1/3
1. Classify the instruments based on their function.2. Write the principle of moving coil instruments.3. Define phantom loading.4. Explain about watt meter and energy meter.5. A 5 A , 230 V meter on full load unity power factor test makes 60
revolutions in 360 seconds. If the normal disc speed is 520
revolution per KWh, what is the percentage error?6. What is the basic principle of Potentiometer? Mention its types.
7. Write the application of AC potentiometer.8. Explain about Potential transformer and state the use of potential
transformer.
9. Name the methods used for low resistance measurements.10. How the resistance can be measures using direct deflection
method.11. (i) Derive the Generalized Equation for A.C Bridges at Balance
Condition.(ii) Explain about Maxwell Bridge and Weins Bridge.
12.(a) (i) Explain briefly about D Arsonval Galvanometer with
Torque Equation.(ii) What are the Generalized Errors occurred in the Instruments,
explain in Detail12.(b)Explain briefly about PMMC and PMMI instruments with Torque
equation.13.(a) What do you mean by wattmeter? Explain briefly about
electrodynamometer Type Wattmeter with toque equation.(b) Explain briefly about wattmeter for a long period and derive the
Torque Equation for Energy Meter and mention what are errors
occurred in the Energy Meter.14.(a) (i) what is meant by Potentiometer and standardization of
Potentiometer.(ii)Explain briefly about Laboratory type(DC) and mention its
application.14.(b)(i) what do you mean by Instrument Transformer
(ii) Explain briefly about CT and PT with relevant Diagrams.
8/12/2019 Measurement Important Question
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15.(a).(i) classify the resistance based on the range of the
Measurement.(ii) What are the methods can be used for the Measurement of
Low resistance and explain briefly about Kelvin bridge
and Kelvin Double Bridge with relevant diagram and equation.15.(b)(i) What are the methods can be used for measurement
of High resistance?
(ii) Explain briefly about Megger, Earth Resistance measurement
&Earth Tester
1. Write the principle of Darsonval galvanometer.
2. What is meant by calibration? Why it is important.
3. What do you mean by LPF wattmeter?
4. The constant of a 230V , 50Hz single phase energy meter is
having 185 revolutions per KWh. The meter takes 190 seconds for
10 revolutions while supplying a non inductive of 4.5 A at normal
voltage. What is the percentage error of the instrument?
5. What do you mean by potentiometer? Mention its types.
6. Define standardization of potentiometer.
7. Write the application of CT and PT8. Classify the resistance based on the range of the measurement
9. Explain about price guard wire method for high resistance
method.10. What are the errors in the A.C bridges?
11.(i) Derive the generalized equation for measuring the
Impedance in the A.C bridg Circuit at balance condition
8/12/2019 Measurement Important Question
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(ii) Explain about Schering Bridge and Anderson Bridge.12.a (i) What do you mean Galvanometer? Explain briefly about any
one the Galvanometer with Torque Equation.
(ii) Explain about Gross , Systematic and Random Errors.12.(b) Explain briefly about Moving Coil and Moving ion
Instruments with Torque Equation
13.(a) Explain Briefly about Induction type Energy Meter with Torque
Equation and mention what are errors occurred in the Energy Meter
(b) Explain briefly about Current and Potential Transformer withrelevant Diagram.write the errors in A.C Bridge methods .12.(a) Explain in detail about Permanent Magnet Moving Coil
Instruments and Permanent Magnet Moving Iron Instruments with
Torque Equation.12. (a)(i) Explain briefly about DArsonval Galvanometer with
Torque Equation.