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Measurement and Instrumentation

Measurement and Instrumentation
Jewels are used in instruments for the purpose of

Torque control
Bearing
Suppressing noise
Damping

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Measurement and Instrumentation
What is the name of physical quantities which are independent of each other?

 Fundamental quantity
 Derived quantity
None of these
 Numerical quantity

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

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

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Measurement and Instrumentation
The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is

 3 mA.
 4 mA.
 2 mA.
 1 mA.

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

Permanent magnet
Air friction
Fluid friction
None of the listed here

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Measurement and Instrumentation
The errors mainly caused by human mistakes are

 instrumental error.
 systematic error.
 observational error.
  gross error.

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MORE MCQ ON Measurement and Instrumentation

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