200 Important Measurement and instrumentation MCQ Question and Answer | PDF Free Download
1.Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured?
- AAbsolute instruments
- BIndicating instruments
- CRecording instruments
- DIntegrating instruments
2._________ Instruments are those which measure the total quantity of electricity delivered in a particular time.
- AAbsolute
- BIndicating
- CRecording
- DIntegrating
3.Which of the following are Integrating instruments?
- AAmmeters
- BVoltmeters
- CWattmeters
- DAmpere-hour and Watt-hour meters
4.Resistances can be measured with the help of
- AWattmeters
- BVoltmeters
- CAmmeters
- DOhmmeters and resistance bridges
5.Which of the following essential features is possessed by indicating instrument?
- ADeflecting device
- BControlling device
- CDamping device
- DAll of the above
6.A _________ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly
- ADeflecting
- BControlling
- CDamping
- DAny of the above
7.The spring material used in a spring control device should have the following property.
- AShould be non-magnetic and have low specific resistance
- BMost be of low temperature co-efficient
- CShould not be subjected to fatigue
- DAll of the above
8.Which of the following properties damping oil must possess?
- AMust be a good insulator and non-evaporating
- BShould not have corrosive action upon the metal of the vane
- CThe viscosity of the oil should not change with the temperature
- DAll of the above
9.A moving-coil permanent-magnet instrument can be used as __________ by using a low resistance shunt.
- AAmmeter
- BVoltmeter
- CFlux-meter
- DBallistic galvanometer
10.A moving-coil permanent-magnet instrument can be used as flux-meter
- ABy using a low resistance shunt
- BBy using a high series resistance
- CBy eliminating the control springs
- DBy making control springs of large moment of inertia
11.Which of the following devices may be used for extending the range of instruments?
- AShunts
- BMultipliers
- CCurrent transformers and Potential transformers
- DAll of the above
12.An induction meter can handle current upto
- A10 A
- B30 A
- C60 A
- D100 A
13.Induction type single phase energy meters measure electric energy in
- AkW
- BWh
- CkWh
- DVAR
14.Most common form of AC meters met with in every day domestic and industrial installations are
- AMercury motor meters
- BCommutator motor meters
- CInduction type single phase energy meters
- DAll of the above
15.Which of the following meters are not used on DC circuits?
- AMercury motor meters
- BCommutator motor meters
- CInduction meters
- DNone of the above
16.Which of the following is an essential part of a motor meter?
- AAn operating torque system
- BA braking device
- CRevolution registering device
- DAll of the above
17.A potentiometer may be used for
- AMeasurement of resistance
- BMeasurement of current
- CCalibration of ammeter and voltmeter
- DAll of the above
18.Which instrument is used for measuring the insulation resistance of an electric circuit relative to earth and one another?
- ATangent galvanometer
- BMeggar
- CCurrent transformer
- DNone of the above
19.The household energy meter is
- AAn indicating instrument
- BA recording instrument
- CAn integrating instrument
- DNone of the above
20.The pointer of an indicating instrument should be
- AVery light
- BVery heavy
- CEither (a) or (b)
- DNeither (a) nor (b)