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Measurement and Instrumentation

Measurement and Instrumentation
Unit of deflection sensitivity of a CRO is

 meter / volt.
 mm / V.
 mm per mV.
 V / mm.

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Measurement and Instrumentation
The transfer instrument which is used for standardization of a polar type AC potentiometer is

 a thermal instrument.
 an electrostatic instrument.
 a dynamometer instrument.
 a moving coil instrument.

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Measurement and Instrumentation
______ movement is most expensive.

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

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Measurement and Instrumentation
The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be

 248 V.
 250 V.
 252 V.
 260 V.

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

Electromagnetic coupling
None of these
Electrostatic coupling
Both A and B

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Measurement and Instrumentation
Induction type single phase energy meters measure electric energy in

Wh
VAR
kWh
kW

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MORE MCQ ON Measurement and Instrumentation

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