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Measurement and Instrumentation

Measurement and Instrumentation
Which one of the following units is a fundamental unit?

 Watt
 Joule/sec
 Newton
 Ampere

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

100Hz
500Hz
1kHz
50Hz

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Measurement and Instrumentation
The operating voltage of a megger is about

40 V
6 V
100 V
12 V

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Measurement and Instrumentation
What is the expression for momentum?

 mass × velocity
 mass × acceleration
 change of velocity / time
 force × displacement

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Measurement and Instrumentation
Wagner earthing device is used to eliminate errors due to

None of these
Electrostatic coupling
Both A and B
Electromagnetic coupling

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Measurement and Instrumentation
In a megger controlling torque is provided by

Coil
Eddy current
Spring
Gravity

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