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Measurement and Instrumentation

Measurement and Instrumentation
The problem of Electrostatic coupling in a transformer is acute at

High load on the transformer
Power frequencies
Low frequencies
High frequencies

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Measurement and Instrumentation
In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

 300∠90° ohm.
 150∠30° ohm.
 600∠-150° ohm.
 400∠-90° ohm.

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Measurement and Instrumentation
In a gravity controlled instrument, the deflection angle is proportional

Sine of the measurand
Measurand
Sine inverse of measurand
Square of the measurand

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

None of the listed here
Fluid friction
Permanent magnet
Air friction

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Measurement and Instrumentation
A 10MHz CRO has

10MHz supply frequency
10MHz vertical oscillator
10MHz horizontal oscillator
5MHz sweep

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Measurement and Instrumentation
The thermocouple instrument will measure

None of these
Voltage
Current
Flux

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MORE MCQ ON Measurement and Instrumentation

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