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Measurement and Instrumentation

Measurement and Instrumentation
______ movement is most expensive.

None of the listed here
Dynamometer
D'Arsonval movement
Moving iron

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Measurement and Instrumentation
The chemical effect of current is used in

C. ammeter hour meter
C. energy meter
None of these
C. ammeter

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Measurement and Instrumentation
The smallest change in measured variable to which instrument will respond is

  resolution.
 precision.
 sensitivity.
 accuracy.

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Measurement and Instrumentation
A first order instrument is characterized by

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

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Measurement and Instrumentation
Attraction and repulsion type instruments are the two different types of which instrument ?

  Moving iron type.
 Dynamo-meter type.
 Induction type.
 Multipliers.

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Measurement and Instrumentation
If two meters X and Y require 40 mA and 50 mA respectively, to give full scale deflection, then

 Y is more sensitive.
 It would not be possible to assess the sensitivity on the basis of the given data.
 X is more sensitive.
 Both X and Y are equally sensitive.

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