Electrical Engineering MCQs

Page No. 77

A VTVM is never used to measure ______________?


aVoltage

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bCurrent

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cResistance

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dNone of the above

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View Answer Current

For display of signal pattern _____________voltage is applied to the horizontal plates of a CRO?


aSinusoidal

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bRectangular

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cSawtooth

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dNone of the above

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View Answer Sawtooth

A galvanometer of resistance G is shunted by a very small resistance S. The resistance of the resulting ammeter is ______________?


aGS/(G+S)

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bG+S

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cG-S

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dNone of the above

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View Answer GS/(G+S)

The sensitivity of a voltmeter which uses a 100 µA meter movement is ____________?


a1 kO/V

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b 10 kO/V

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c5 kO/V

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dData insufficient

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View Answer 10 kO/V

The materil used to coat inside the face of CRT is ______________?


aCarbon

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bSulphur

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cSilicon

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dPhosphorous

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View Answer Phosphorous

The most accurate device for measuring voltage is ____________?


aVoltmeter

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bMultimeter

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cCRO

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dVTVM

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View Answer CRO

A VTVM has_____________input resistance than that of a multi meter?


aMore

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bLess

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cSame

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dNone of the above

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View Answer More

If the full-scale deflection current of a multimeter is 50 µA, its sensitivity is ________________?


a10 kO/V

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b100 kO/V

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c50 kO/V

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d 20 kO/V

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View Answer 20 kO/V

A voltmeter is connected in a _____________ with the circuit component across which potential difference is to be measured?


aParallel

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bSeries

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cSeries or parallel

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dNone of the above

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View Answer Parallel

A galvanometer in series with a high resistance is called_______________?


aAn ammeter

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b A voltmeter

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cA wattmeter

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d None of the above

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View Answer A voltmeter

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