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Measurement and Instrumentation

Measurement and Instrumentation
The resistance can be measured most accurately by

Megger
Multimeter
Bridge method
Voltmeter-ammeter method

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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.
 260 V.
 252 V.
 250 V.

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

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

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Measurement and Instrumentation
Consider the following statements : In a measuring instrument, 1. Linearity is more important than sensitivity. 2. High precision indicates high accuracy 3. Accuracy cannot be better than resolution. Of these statements

 1 and 3 are correct
 1 and 2 are correct
 2 and 3 are correct
 1, 2 and 3 are correct

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Measurement and Instrumentation
A 10MHz CRO has

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

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Measurement and Instrumentation
An current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading?

 2 A.
 5 A.
 2+3√2 A.
  3 A.

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