MEASUREMENT AND INSTRUMENTATION QUIZ

No eddy current and hysteresis losses occur in

Electrodynamo meter instruments

Electrostatic instruments

PMMC instruments

Moving iron instruments

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a variable displacement transducer?

None of these

potentiometer

synchros

tachometer

TRUE ANSWER : ?
YOUR ANSWER : ?

PMMC type instruments normally use

Air friction damping

None of these

Fluid friction damping

Eddy current damping

TRUE ANSWER : ?
YOUR ANSWER : ?

An electrodynamic meter can be used to measure

AC volatge.

DC voltage.

DC current.

both AC and DC voltage.

TRUE ANSWER : ?
YOUR ANSWER : ?

Jewels are used in instruments for the purpose of

Damping

Suppressing noise

Bearing

Torque control

TRUE ANSWER : ?
YOUR ANSWER : ?

For measuring a very high resistance we should use

None of the listed here

Megger

Wheat stone bridge

Kelvin's double bridge

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Thermocouple

Dynamometer

Hot wire

Moving iron

TRUE ANSWER : ?
YOUR ANSWER : ?

An oscilloscope indicates

Average value

RMS value

DC value of voltage

Peak to peak value of voltage

TRUE ANSWER : ?
YOUR ANSWER : ?

A null type instrument as compared to a deflected type instrument has

a higher accuracy.

All of these

a lower sensitivity.

a faster response.

TRUE ANSWER : ?
YOUR ANSWER : ?

An ammeter is ______ instrument.

None of the listed here

A recording

An indicating

An integrating

TRUE ANSWER : ?
YOUR ANSWER : ?

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