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Measurement and Instrumentation

Measurement and Instrumentation
A permanent magnet moving coil ammeter has a coil resistance of 99ohm and Full Scale DeflectionFSD. current of 0.1mA. Shunt resistance is 1 ohm. Current through the meter at 0.5 F.S.D is

0.023mA
0.1mA
0.05mA
0.007mA

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Measurement and Instrumentation
On a simple ohmmeter, the 0 Ω mark is _______ of the scale.

In the middle
Far left
None of the listed here
Far right

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Measurement and Instrumentation
Induction wattmeter can measure

Dc power only
None of the listed here
Ac power only
Both AC and DC

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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

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

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Measurement and Instrumentation
The resistance can be measured most accurately by

Bridge method
Voltmeter-ammeter method
Multimeter
Megger

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Measurement and Instrumentation
Moving iron instruments have _____ scale.

Uniform
Log
Squared
None of the listed here

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