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Measurement and Instrumentation

Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

5 A
None of the listed here
2.5 A
0 A

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Measurement and Instrumentation
The smallest change in measured variable to which instrument will respond is

 accuracy.
 precision.
 sensitivity.
  resolution.

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Measurement and Instrumentation
Resistances can be measured with the help of

Wattmeters
Ohmmeters and resistance bridges
Voltmeters
Ammeters

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Measurement and Instrumentation
What are the SI units of mass, length and time respectively?

 kg, cm and s.
 g, m and s.
 g, cm and s.
 kg, m and s.

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Measurement and Instrumentation
Kelvin’s double bridge is used to measure low resistance because

 there is no thermo electric emf.
 resistance variation due to temperature.
 effect of contact and lead resistance is eliminated.
 it has high sensitivity.

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Measurement and Instrumentation
In a single phase energy meter, braking torque is provided by

Permanent magnet
None of the listed here
Air friction
Fluid friction

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MORE MCQ ON Measurement and Instrumentation

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