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Measurement and Instrumentation

Measurement and Instrumentation
The range of a moving iron ac ammeter is extended by

Changing number of turns of operating coil
None of the listed here
A shunt
A multiplier

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Measurement and Instrumentation
To measure ac as well as dc power, we use

None of the listed here
Dynamometer wattmeter
Induction wattmeter
Sometimes induction and sometimes dynamometer wattmeter

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Measurement and Instrumentation
What is the expression for momentum?

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

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Measurement and Instrumentation
A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be

 625 Hz.
 500 Hz.
 250 Hz.
 400 Hz.

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Measurement and Instrumentation
The EMF of Weston standard cell is measured using

Moving-coil meter
Potentiometer
Digital Volt meter
Moving- iron meter

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Measurement and Instrumentation
When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is

Short-circuited
All right
Faulty
None of these

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MORE MCQ ON Measurement and Instrumentation

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