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Measurement and Instrumentation

Measurement and Instrumentation
Unit of deflection sensitivity of a CRO is

 mm / V.
 V / mm.
 meter / volt.
 mm per mV.

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Measurement and Instrumentation
The pointer of an indicating instrument is generally made of _______

Soft steel
Aluminium
Copper
Silver

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Measurement and Instrumentation
A voltmeter has 100 scale divisions and can measure up to 100 V. Each division can be read to ½ division. The resolution of the voltmeter is

 2 V
 1 V
 0.5 V
 1.5 V

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Measurement and Instrumentation
A variable w is related to three other variables x, y and z as w = xy/z. The variables are measured with meters of accuracy ± 0.5% reading, ± 1% of full scale value and ± 1.5% reading. The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum uncertainty in the measurement of w will be

 ± 7%
 ± 8%
 ± 6%
 ± 5%

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Measurement and Instrumentation
Alternating current is measured by

Induction ammeter
Permanent magnet type ammeter
Electrostatic ammeter
Moving iron repulsion type voltmeter

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Measurement and Instrumentation
The resistance in the circuit of the moving coil of a dynamometer wattmeter should be

Almost zero
None of the listed here
High
Low

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MORE MCQ ON Measurement and Instrumentation

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