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Measurement and Instrumentation

Measurement and Instrumentation
Basically potential meter is a device for

Comparing two currents
Measuring a voltage
Comparing two voltages
Measuring a current

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Measurement and Instrumentation
How many fundamental units are there ?

 6
 4
 8
 7

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Measurement and Instrumentation
To measure the flux, devices used are based on

Piezo-electric effect
Voltaic effect
Hall effect
Photo-voltaic effect

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Measurement and Instrumentation
The dynamometer principle can be used for

 ammeter only.
 wattmeter only.
 voltmeter only.
 ammeter, voltmeter and wattmeter.

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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

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

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Measurement and Instrumentation
The effect of load resistance is important in measurement of

 resistance of shunt.
 both A and B.
 resistance of ammeter.
 resistance of shunt winding.

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MORE MCQ ON Measurement and Instrumentation

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