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Measurement and Instrumentation

Measurement and Instrumentation
In flux meter, the controlling torque is produced by

 weight attached to the moving coil.
 not provided at all.
 crossed coil mechanism.
 spring.

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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
Deflecting
None of the listed here
Controlling

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Measurement and Instrumentation
Piezoelectronic accelerometer

 Should use a monitoring source at low input impedance.
 Should be used for low frequency.
 Should be used for high frequencies above 100 Hz.
 Has a low natural frequency.

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Measurement and Instrumentation
Resolution of an instrument is

 the maximum non linearity.
 ability to distinguish polarity.
 the minimum quantity it can measure.
 the maximum quantity it can measure.

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Measurement and Instrumentation
Which one of the following meters has maximum loading effect on the circuit under measurement ?

 100 Ω/volt
 1 MΩ/volt
 10 MΩ/volt
 1000 Ω/volt

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Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

None of the listed here
5 A
2.5 A
0 A

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