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Measurement and Instrumentation

Measurement and Instrumentation
The resistance can be measured most accurately by

Multimeter
Voltmeter-ammeter method
Bridge method
Megger

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Measurement and Instrumentation
The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used?

1/49.99 ohms
1 Ohm
49.99 Ohms
2 Ohms

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Measurement and Instrumentation
A 150 V moving iron voltmeter of accuracy class 1-0 reads 75 V when used in a circuit under standard condition. The maximum possible percentage error in the reading is

 1%
 2.5%
 2%
 1.5%

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Measurement and Instrumentation
In a dynamometer wattmeter, the moving coil is the

Potential coil
None of the listed here
Current coil
Current coil and potential coil

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

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

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Measurement and Instrumentation
Null type recorders are

 potentiometric recorders.
 any one of the above.
 bridge recorders.
 LVDT recorders.

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MORE MCQ ON Measurement and Instrumentation

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