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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

 6%
 3%
 5%
 4%

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Measurement and Instrumentation
Which meter is suitable for the measurement of 10mV at 50MHz?

Moving iron voltmeter
Moving coil voltmeter
CRO
VTVM

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Measurement and Instrumentation
The controlling torque of an indicating instrument ______ as the deflection of the moving system increases.

Decreases
Remains same
None of the listed here
Increases

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Measurement and Instrumentation
The form factor in AC is the ratio of

Rms value to average value
Rms value to peak value
Peak value to average value
Peak value to rms value

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Measurement and Instrumentation
A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec?

 105.6o.
 30o.
 150o.
 63.25o.

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Measurement and Instrumentation
A voltmeter has 100 scale divisions and can measure up to 100 V. Each division can be read to ½ division. The resolution of the voltmeter is

 0.5 V
 2 V
 1 V
 1.5 V

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MORE MCQ ON Measurement and Instrumentation

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