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Measurement and Instrumentation

Measurement and Instrumentation
What is the expression for momentum?

 mass × velocity
 force × displacement
 change of velocity / time
 mass × acceleration

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Measurement and Instrumentation
The material of the shunt should have _______ temperature co-efficient of resistance.

Negative
Positive
None of the listed here
Negligible

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Measurement and Instrumentation
A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is

 85.4o.
  4.6o.
 175.4o.
 94.6o.

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Measurement and Instrumentation
To measure high frequency currents, we mostly use ______ ammeter.

Moving iron
Dynamometer
Hot wire
Thermocouple

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Measurement and Instrumentation
The effect of load resistance is important in measurement of

 resistance of ammeter.
 resistance of shunt winding.
 both A and B.
 resistance of shunt.

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Measurement and Instrumentation
When using ohmmeter, applied voltage is to be disconnected from the circuit because

None of these
The ohmmeter has its own internal battery
Voltage source will increase resistance
Current will decrease resistance

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MORE MCQ ON Measurement and Instrumentation

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