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Measurement and Instrumentation

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

 ± 2.8%
 ± 3%
 ± 6%
 ± 4%

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Measurement and Instrumentation
An ammeter is a

Recording instrument
Absolute instrument
Secondary instrument
Integrating instrument

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Measurement and Instrumentation
For the AC bridge circuit shown in figure at balance the value of Rd will be

 (Ra/Rc).Rb.
 (Rc/Ra).Rb.
 (Rc/Rb).Ra.
 (Rb/Rc).Ra.

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Measurement and Instrumentation
For measurement of mutual inductance we can use

Heavyside bridge
Anderson bridge
Any of the listed here
Maxwell's bridge

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Measurement and Instrumentation
The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance

 ± 1%
 ± 3.5%
 ± 2.5%
 ± 1.5%

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Measurement and Instrumentation
A variable w is related to three other variables x, y and z as w = xy/z. The variables are measured with meters of accuracy ± 0.5% reading, ± 1% of full scale value and ± 1.5% reading. The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum uncertainty in the measurement of w will be

 ± 7%
 ± 5%
 ± 8%
 ± 6%

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MORE MCQ ON Measurement and Instrumentation

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