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Measurement and Instrumentation

Measurement and Instrumentation
A dynamometer wattmeter can be used for

AC only
Both DC and AC
DC only
Any of the listed here

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Measurement and Instrumentation
The rectifier instrument is not free from

All of the listed here
Wave shape error
Temperature error
Frequency error

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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
Which wave has the least form factor?

Square wave
Sine wave
Rectangular wave
Triangular wave

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Measurement and Instrumentation
The two pressure coils of a single phase power factor meter have

The same number of turns but different dimensions
The same dimension but different number of turns
None of these
The same dimensions and the same number of turns

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Measurement and Instrumentation
With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be

50Hz
100Hz
1kHz
500Hz

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MORE MCQ ON Measurement and Instrumentation

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