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Measurement and Instrumentation

Measurement and Instrumentation
Direct method is used to measure

Temperature
Length
Voltage
Pressure

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Measurement and Instrumentation
A PMMC instrument can be used as flux meter

By eliminating the control springs
By making control springs of large moment of inertia
By using a low resistance shunt
By using a high series resistance

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Measurement and Instrumentation
A dynamometer wattmeter can be used for

DC only
Any of the listed here
Both DC and AC
AC only

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Measurement and Instrumentation
Dynamic errors are caused by

 environmental error
 human error
 observational error
 instrument not responding fast

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Measurement and Instrumentation
To measure ac as well as dc power, we use

Sometimes induction and sometimes dynamometer wattmeter
None of the listed here
Induction wattmeter
Dynamometer wattmeter

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Measurement and Instrumentation
Wagner earthing device is used to eliminate errors due to

Electrostatic coupling
None of these
Electromagnetic coupling
Both A and B

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MORE MCQ ON Measurement and Instrumentation

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