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Measurement and Instrumentation

Measurement and Instrumentation
Relative error is same as

 true error.
None of these
 absolute error.
 ratio of absolute error and true value.

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Measurement and Instrumentation
The range of a moving iron ac ammeter is extended by

None of the listed here
A shunt
A multiplier
Changing number of turns of operating coil

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Measurement and Instrumentation
The operating voltage of a megger is about

12 V
40 V
6 V
100 V

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Measurement and Instrumentation
Jewels are used in instruments for the purpose of

Torque control
Damping
Bearing
Suppressing noise

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Measurement and Instrumentation
A ______ device prevents the oscillation of the moving statem and enables the latter to reach its final position quickly

Damping
None of the listed here
Controlling
Deflecting

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Measurement and Instrumentation
When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is

 20.
 54.2.
 25.4.
 31.4.

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