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Measurement and Instrumentation

Measurement and Instrumentation
A current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading?

 4.06 A.
 5 A.
 6.09 A.
 2.03 A.

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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

Controlling
Damping
Deflecting
None of the listed here

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Measurement and Instrumentation
If the instrument is to have a wide range, the instrument should have

Exponential scale
Square-law scale
Logarithmic scale
Linear scale

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Measurement and Instrumentation
The repeat accuracy of an instrument can be judged from its

Linearity error
Standard deviation of error
Dynamic error
Static error

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Measurement and Instrumentation
A first order instrument is characterized by

 Static sensitivity, damping coefficient and natural frequency of oscillations
 Static sensitivity and time constant
 Static sensitivity and damping coefficient
 Time constant only

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

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

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