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Measurement and Instrumentation

Measurement and Instrumentation
An ammeter of range 0-25 A has a guaranteed accuracy of 1% of full-scale reading. The current measured by the ammeter is 5 A. The limiting error in the reading is

 4%
 6%
 5%
 3%

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Measurement and Instrumentation
A 10MHz CRO has

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

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Measurement and Instrumentation
The best type of meter moment is ______ moment.

Dynamometer
Iron- vane
None of the listed here
D'Arsonval

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Measurement and Instrumentation
For handling greater currents induction watt-meters are used in conjunction with

Either of the above
Potential transformers
Current transformers
Power transformers

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Measurement and Instrumentation
The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be

 248 V.
 250 V.
 260 V.
 252 V.

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Measurement and Instrumentation
A mulliammeter can be used as

Voltmeter and ammeter
Frequency meter
Wattmeter
Ohmmeter

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MORE MCQ ON Measurement and Instrumentation

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