# Top Electrical Measurements and Measuring Instruments MCQ (Multiple Choice Questions)

Here I discuss Top Electrical Measurements and Measuring Instruments MCQ (Multiple Choice Questions)

Q1. which Instruments measure the total quantity of electricity delivered in a particular time. ​
a) Absolute​
b) Indicating​
c) Recording​
d) Integrating​

Q2. Which of the following are Integrating instruments?​
a) Ammeters​
b) Voltmeters​
c) Wattmeters​
d) Ampere-hour and Watt-hour meters​

Q3. Resistances can be measured with the help of​
a) Wattmeters​
b) Voltmeters​
c) Ammeters​
d) Ohmmeters and resistance bridges

Q4. Which of the following essential features is possessed by indicating instrument?​
a) Deflecting device​
b) Controlling device​
c) Damping device​
d) All of the above

Q5. The household energy meter is​
a) Absolute Instrument​
b) Indicating Instrument​
c) Recording Instrument​
d) Integrating Instrument​

Q6. The pointer of the indicating instrument should be​
a) Very light​
b) Very heavy​
c) Very thick and wide​
d) Neither very light nor very heavy​

Q7. A moving-coil permanent-magnet instrument can be used as  ……….  by using a low resistance shunt.​
a) Ammeter​
b) Voltmeter​
c) Flux-meter​
d) Ballistic galvanometer

Q8. Which of the following properties damping oil must possess?​
a) Must be a good insulator and non-evaporating​
b) Should not have corrosive action upon the metal of the vane​
c) The viscosity of the oil should not change with the temperature​
d) All of the above

Q9. A moving-coil permanent-magnet instrument can be used as flux-meter​
a) By using a low resistance shunt​
b) By using a high series resistance​
c) By eliminating the control springs​
d) By making control springs of large moment of inertia

Answer: By eliminating the control springs​

Q10. An induction meter can handle current upto​
a) 10 A​
b) 30 A​
c) 60 A​
d) 100 A​

Q11. Induction type single phase energy meters measure electric energy in​
a) KW​
b) Wh​
c) KWh​
d) VAR​

Q12. Which of the following meters are not used on DC circuits?​
a) Mercury motor meters ​
b) Commutator motor meters​
c) Induction meters​
d) None of the above ​

Q13. A potentiometer may be used for​
a) Measurement of resistance​
b) Measurement of current​
c) Calibration of ammeter and voltmeter​
d) All of the above ​

Answer: All of the above ​

Q14. Which instrument is used for measuring the insulation resistance of an electric circuit relative to earth and one another?​
a) Tangent galvanometer​
b) Megger​
c) Current transformer​
d) None of the above ​

Q15. Which of the following meters are not used on DC circuits?​
a) Mercury motor meters ​
b) Commutator motor meters​
c) Induction meters​
d) None of the above ​