Study mode · no timer

Measurement and Instrumentation

Study 109 Electrical Engineering MCQs with correct answers and explanations.

Answers and explanations are always visible Take this test

71Electrical EngineeringMedium

For measuring current at high frequency we should use________?

Anone of the above

Belectrostatic instrument

Cthermocouple instrument

Dmoving iron instrument

Correct answer

C. thermocouple instrument

Explanation

The correct answer is thermocouple instrument.

72Electrical EngineeringMedium

For measuring a very high resistance we should use________?

AWheat stone bridge

BKelvin’s double bridge

CMeggar

DNone of the above

Correct answer

C. Meggar

Explanation

The correct answer is Meggar.

73Electrical EngineeringMedium

Most sensitive galvanometer is________?

ADuddlb galvanometer

Bvibration galvanometer

Cspot ballistic galvanometer

Delastic galvanometer

Correct answer

C. spot ballistic galvanometer

Explanation

The correct answer is spot ballistic galvanometer.

74Electrical EngineeringMedium

An ammeter is a________?

Asecondary instrument

Bintegrating instrument

Cabsolute instrument

Drecording instrument

Correct answer

A. secondary instrument

Explanation

The correct answer is secondary instrument.

75Electrical EngineeringMedium

Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to________?

Aimprove its ventilation

Beliminate creeping at no load

Cincrease its braking torque

Dincrease its deflecting torque

Correct answer

B. eliminate creeping at no load

Explanation

The correct answer is eliminate creeping at no load.

76Electrical EngineeringMedium

For measurement of mutual inductance we can use________?

AHeaviside bridge

BMaxwell’s bridge

CAnderson bridge

DAny of the above

Correct answer

A. Heaviside bridge

Explanation

The correct answer is Heaviside bridge.

77Electrical EngineeringMedium

A Weston synchronoscope is a________?

Amoving coil instrument

Bmoving iron instrument

Cnone of the above

Ddynamometer instrument

Correct answer

D. dynamometer instrument

Explanation

The correct answer is dynamometer instrument.

78Electrical EngineeringMedium

The rectifier instrument is not free from________?

Afrequency error

Ball of the above

Cwave shape error

Dtemperature error

Correct answer

A. frequency error

Explanation

The correct answer is frequency error.

79Electrical EngineeringMedium

An induction wattmeter can be used for________?

AA.C. only

Bany of the above

CD.C. only

Dboth D.C. and A.C.

Correct answer

C. D.C. only

Explanation

The correct answer is D.C. only.

80Electrical EngineeringMedium

Wattmeter cannot be designed on the principle of________?

Athermocouple instrument

Bmoving iron instrument

Celectrodynamic instrument

Delectrostatic instrument

Correct answer

B. moving iron instrument

Explanation

The correct answer is moving iron instrument.

71Electrical EngineeringMedium

For measuring current at high frequency we should use________?

Anone of the above

Belectrostatic instrument

Cthermocouple instrument

Dmoving iron instrument

Correct answer

C. thermocouple instrument

Explanation

The correct answer is thermocouple instrument.

72Electrical EngineeringMedium

For measuring a very high resistance we should use________?

AWheat stone bridge

BKelvin’s double bridge

CMeggar

DNone of the above

Correct answer

C. Meggar

Explanation

The correct answer is Meggar.

73Electrical EngineeringMedium

Most sensitive galvanometer is________?

ADuddlb galvanometer

Bvibration galvanometer

Cspot ballistic galvanometer

Delastic galvanometer

Correct answer

C. spot ballistic galvanometer

Explanation

The correct answer is spot ballistic galvanometer.

74Electrical EngineeringMedium

An ammeter is a________?

Asecondary instrument

Bintegrating instrument

Cabsolute instrument

Drecording instrument

Correct answer

A. secondary instrument

Explanation

The correct answer is secondary instrument.

75Electrical EngineeringMedium

Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to________?

Aimprove its ventilation

Beliminate creeping at no load

Cincrease its braking torque

Dincrease its deflecting torque

Correct answer

B. eliminate creeping at no load

Explanation

The correct answer is eliminate creeping at no load.

76Electrical EngineeringMedium

For measurement of mutual inductance we can use________?

AHeaviside bridge

BMaxwell’s bridge

CAnderson bridge

DAny of the above

Correct answer

A. Heaviside bridge

Explanation

The correct answer is Heaviside bridge.

77Electrical EngineeringMedium

A Weston synchronoscope is a________?

Amoving coil instrument

Bmoving iron instrument

Cnone of the above

Ddynamometer instrument

Correct answer

D. dynamometer instrument

Explanation

The correct answer is dynamometer instrument.

78Electrical EngineeringMedium

The rectifier instrument is not free from________?

Afrequency error

Ball of the above

Cwave shape error

Dtemperature error

Correct answer

A. frequency error

Explanation

The correct answer is frequency error.

79Electrical EngineeringMedium

An induction wattmeter can be used for________?

AA.C. only

Bany of the above

CD.C. only

Dboth D.C. and A.C.

Correct answer

C. D.C. only

Explanation

The correct answer is D.C. only.

80Electrical EngineeringMedium

Wattmeter cannot be designed on the principle of________?

Athermocouple instrument

Bmoving iron instrument

Celectrodynamic instrument

Delectrostatic instrument

Correct answer

B. moving iron instrument

Explanation

The correct answer is moving iron instrument.