Instrumentation and Measurement MCQs - Quiz 2

1. Operating torques in analog instruments are:
A) Vibration and balancing
B) Deflecting and damping
C) Deflecting, control and damping
D) Deflecting and control

The correct answer is C

2. Damping of the Ballistic galvanometer is made small to:
A) Get minimum overshoot
B) Make the system oscillatory
C) Make the system critically damped
D) Get first deflection large

The correct answer is D

3. Commonly used instruments in power system measurement are ___ type.
A) Induction
B) Moving coil
C) Rectifier
D) Electrostatic

The correct answer is A

4. In ___ galvanometer the moving part has a large moment of inertia, thus giving it a long oscillation period.
A) Astatic galvanometer
B) Ballistic galvanometer
C) Tangent galvanometer
D) None of the above

The correct answer is B

5. _____ instruments are used only in laboratories as standardizing instruments.
A) Absolute
B) Indicating
C) Recording
D) Integrating

The correct answer is A

6. _____ instruments are those which measure the total quantity of electricity delivered in a particular time.
A) Absolute
B) Indicating
C) Recording
D) Integrating

The correct answer is D

7. ___ are integrating instruments.
A) Ammeters
B) Voltmeters
C) Wattmeters
D) Ampere-hour and watt-hour meters

The correct answer is D

8. A PMMC instrument can be used as _____ by using a low resistance shunt.
A) Ammeter
B) Voltmeter
C) Flux-meter
D) Ballistic galvanometer

The correct answer is A

9. Induction type single phase energy meters measure electric energy in:
A) kW
B) Wh
C) kWh
D) VAR

The correct answer is C

10. For handling greater currents induction a wattmeter is used in conjunction with:
A) Potential transformer
B) Current transformer
C) Power transformer
D) Either of the above

The correct answer is B