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Measurement and Instrumentation

Measurement and Instrumentation
A mulliammeter can be used as

Wattmeter
Frequency meter
Voltmeter and ammeter
Ohmmeter

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Measurement and Instrumentation
A 150 V moving iron voltmeter of accuracy class 1-0 reads 75 V when used in a circuit under standard condition. The maximum possible percentage error in the reading is

 1%
 2.5%
 2%
 1.5%

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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

 5%
 3%
 4%
 6%

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Measurement and Instrumentation
A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be

 0.25 A.
 0.70 A.
 0.67 A.
 0.50 A.

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Measurement and Instrumentation
A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in figure. The measured voltage will be

 4.54 V.
 5 V.
 3.53 V.
 4.38 V.

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Measurement and Instrumentation
What are the SI units of mass, length and time respectively?

 kg, m and s.
 g, m and s.
 g, cm and s.
 kg, cm and s.

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MORE MCQ ON Measurement and Instrumentation

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