A. Absolute instruments
B. Indicating instruments
C. Recording instruments
D. Integrating instruments
✅ The correct answer is option B.
Measurement and Instrumentation MCQs
Which of the following essential features is possessed by an indicating instrument ?
A. Deflecting device
B. Controlling device
C. Damping device
D. All of the above
✅ The correct answer is option D.
Operating torques in analogue instruments are_______________?
A. deflecting and control
B. deflecting and damping
C. deflecting, control and damping
D. vibration and balancing
✅ The correct answer is option C.
In Weston synchronoscope the moving coil is connected across______________?
A. bus-bars
B. incoming alternator
C. fixed coils
D. any of the above
✅ The correct answer is option A.
The spring material used in a spring control device should have the following property?
A. Should be non-magnetic
B. Most be of low temperature co-efficient
C. Should have low specific resistance
D. Should not be subjected to fatigue
✅ The correct answer is option E.
A __________ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly___________?
A. deflecting
B. controlling
C. damping
D. any of the above
✅ The correct answer is option C.
Commonly used instruments in power system measurement are_______________?
A. induction
B. moving coil or iron
C. rectifier
D. electrostatic
✅ The correct answer is option A.
Which of the following are integrating instruments ?
A. Ammeters
B. Voltmeters
C. Wattmeters
D. Ampere-hour and watt-hour meters
✅ The correct answer is option D.
E.m.f. of a Weston cell is accurately measured by________________?
A. electrostatic voltmeter
B. hot wire voltmeter
C. isothermal voltmeter
D. electrodynamic voltmeter
✅ The correct answer is option A.
Which of the following devices may be used for extending the range of instruments ?
A. Shunts
B. Multipliers
C. Current transformers
D. Potential transformers
✅ The correct answer is option E.