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Measurement and Instrumentation

Measurement and Instrumentation
Following is a 16-bit register for 8085 microprocessor

 Stack pointer
 Register C
 Accumulator
 Register B

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Measurement and Instrumentation
A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as

 3750 rev/KWh.
 960 rev/KWh.
 3600 rev/KWh.
 1000 rev/KWh.

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Measurement and Instrumentation
The function of shunt in an ammeter is to

By pass the current
None of the listed here
Increase the sensitivity of the ammeter
Increase the resistance of ammeter

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Measurement and Instrumentation
In a moving iron meter, the deflecting torque is proportional to

Sine of the measurand
Current through the coil
Squareroot of the measurand
Square of the current through the coil

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Measurement and Instrumentation
A moving coil permanent magnet instrument can be used as ______ by using a low resistance shunt.

Ammeter
Flux meter
Ballastic galvanometer
Voltmeter

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Measurement and Instrumentation
The operating voltage of a megger is about

100 V
40 V
6 V
12 V

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