MEASUREMENT AND INSTRUMENTATION QUIZ

The disc of an instrument using eddy current damping should be of

Conducting and magnetic material

Conducting and non magnetic material

Non conducting and magnetic material

None of the listed here

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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

49.99 Ohms

1 Ohm

2 Ohms

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The scale of hot wire ammeter is

Absloute linear.

Non Linear.

Cramped.

Linear.

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The best type of meter moment is ______ moment.

Iron- vane

Dynamometer

D'Arsonval

None of the listed here

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Direct method is used to measure

Voltage

Temperature

Length

Pressure

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Deflection method direct measurements are most widely used as these are

least time consuming.

most simple and least time consuming.

most accurate.

most simple.

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The ratio of change in output to the change in the input is called

repeatability

precision

resolution

sensitivity

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The core flux in the CT of above question no.6, under the given operating conditions is

1000 mWb.

225 mWb.

0.

450 mWb.

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In flux meter, the controlling torque is produced by

crossed coil mechanism.

not provided at all.

spring.

weight attached to the moving coil.

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An electrodynamic meter can be used to measure

AC volatge.

DC voltage.

both AC and DC voltage.

DC current.

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