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measurement and instrumentation MCQs

Practise focused measurement and instrumentation questions with marked answers for exam preparation and subject revision.

measurement and instrumentation Mcqs

1. Wattmeter cannot be designed on the principle of_________________?
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A. moving iron instrument

B. thermocouple instrument

C. electrostatic instrument

D. electrodynamic instrument

2. A moving-coil permanent-magnet instrument can be used as ____________by using a low resistance shunt?
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A. voltmeter

B. ammeter

C. flux-meter

D. ballistic galvanometer

3. The desirable static characteristics of a measuring system are______________?
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A. accuracy and reproducibility

B. accuracy, sensitivity and reproducibility

C. static error

D. drift and dead zone

4. If an instrument has cramped scale for larger values, then it follows________________?
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A. none of the above

B. logarithmic law

C. square law

D. uniform law

5. A multirangq instrument has________________?
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A. variable turns of coil

B. any of the above

C. multicoii arrangement

D. multiple shunt or series resistances inside the meter

E. multi range meters inside the measurement system

6. Commonly used standard capacitor is______________?
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A. concentric cylindrical type

B. electrostatic type

C. multilayer parallel plate type

D. spherical type

7. A phase shifting transformer is used in conjunction with_______________?
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A. Crompton potentiometer

B. D.C. potentiometer

C. A.C. co-ordinate potentiometer

D. Drysdale potentiometer

8. A moving-coil permanent-magnet instrument can be used as flux-meter_____________?
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A. by eliminating the control springs

B. by making control springs of large moment of inertia

C. by using a low resistance shunt

D. by using a high series resistance

9. The ratio of maximum displacement deviation to full scale deviation of the instrument is called_______________?
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A. linearity

B. dynamic deviation

C. static sensitivity

D. precision or accuracy

10. Induction type single phase energy meters measure electric energy in_______________?
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A. Wh

B. kWh

C. kW

D. None of the above

E. VAR

11. The pointer of an indicating instrument should be______________?
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A. either A. or B.

B. neither A. nor B.

C. very light

D. very heavy

12. Which of the following is an essential part of a motor meter ?
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A. A braking device

B. An operating torque system

C. Revolution registering device

D. All of the above

13. In majority of instruments damping is provided by______________?
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A. eddy currents

B. fluid friction

C. all of the above

D. spring

14. A Weston synchronoscope is a________________?
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A. dynamometer instrument

B. moving iron instrument

C. none of the above

D. moving coil instrument

15. The stator of phase shifting transformer for use in conjunction with an A.C. potentiometer usually has a _________________?
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A. three-phase winding

B. two-phase winding

C. single-phase winding

D. any of the above

16. In an AC. co-ordinate potentiometer, the currents in the phase and quadrature potentiometer are adjusted to be_____________?
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A. out of phase by 30

B. out of phase by 90

C. out of phase by 180

D. out of phase by 0

E. out of phase by 60

17. The use of _________ instruments is merely confined within laboratories as standardizing instruments?
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A. indicating

B. integrating

C. none of the above

D. absolute

E. recording

18. Operating torques in analogue instruments are_______________?
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A. deflecting and damping

B. vibration and balancing

C. deflecting, control and damping

D. deflecting and control

19. Instrument transformers are_______________?
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A. potential transformers

B. current transformers

C. both A. and B.

D. power transformers

20. Resistances can be measured with the help of_______________?
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A. wattmeters

B. ammeters

C. ohmmeters and resistance bridges

D. voltmeters

E. all of the above

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