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Measurement and Instrumentation

Measurement and Instrumentation
Which one of the following units is a fundamental unit?

 Joule/sec
 Watt
 Newton
 Ampere

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Measurement and Instrumentation
PMMC type instruments normally use

Air friction damping
Eddy current damping
None of these
Fluid friction damping

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Measurement and Instrumentation
The electrical power to a megger is provided by

Any of the listed here
Permanent magnet dc generator
Ac generator
Battery

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Measurement and Instrumentation
A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is

 100.
 10.
 11.
 110.

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Measurement and Instrumentation
Which of the following devices may be used for extending the range of instruments?

Potential transformers
All of the listed here
Current transformers
Shunt

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Measurement and Instrumentation
Which amplifier in used in an electronic amplifier?

 Butter amplifer.
 Differential amplifier.
 Wideband amplifier.
 Power amplifier.

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