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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

 5%
 4%
 3%
 6%

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Measurement and Instrumentation
In the bridge given in the figure, the reading of the high impedance voltmeter is

 - 3.33 V.
 4.20 V.
 Zero.
 6.66 V.

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Measurement and Instrumentation
A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is

 0.0024 Ohm.
 120 Ohm.
 240 Ohm.
 0.0012 Ohm.

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Measurement and Instrumentation
In eddy current damping, disc or former is made of a material that is a

Non conductor and non magnetic
Conductor but non magnetic
Non conductor but magnetic
Conductor but magnetic

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Measurement and Instrumentation
The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is

 ± 6%
 ± 2.8%
 ± 4%
 ± 3%

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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

 250 Hz.
 400 Hz.
 500 Hz.
 625 Hz.

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MORE MCQ ON Measurement and Instrumentation

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