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Measurement and Instrumentation

Measurement and Instrumentation
What is the expression for momentum?

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

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Measurement and Instrumentation
Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are

One of the meters out of the range and other 100V
400V and 200V
300V each
360V and 240V

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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

 94.6o.
 175.4o.
 85.4o.
  4.6o.

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Measurement and Instrumentation
To measure 5 volts, if one selects a 0-100 volt range voltmeter which is accurate with in ± 1%, then the error in this measurement may be up to

 ± 2.5%
 ± 20%
 ± 7.5 %
 ± 1.5%

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Measurement and Instrumentation
The disc of an instrument using eddy current damping should be of

Conducting and non magnetic material
Conducting and magnetic material
Non conducting and magnetic material
None of the listed here

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Measurement and Instrumentation
The resistance can be measured most accurately by

Multimeter
Voltmeter-ammeter method
Megger
Bridge method

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MORE MCQ ON Measurement and Instrumentation

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