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Measurement and Instrumentation

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

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

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Measurement and Instrumentation
The absolute measurement of resistance is done by

Bridge Method
Lorenz method
Ohm’s law method
Rayleigh method

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Measurement and Instrumentation
For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is

 25.2%
 5.2%
 1.2%
 10.2%

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Measurement and Instrumentation
A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as

 1000 rev/KWh.
 960 rev/KWh.
 3750 rev/KWh.
 3600 rev/KWh.

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Measurement and Instrumentation
A permanent magnet moving coil ammeter is connected in 50 Hz a. c. Circuit in which 5A current is flowing. The meter will read

2.5 A
5 A
None of the listed here
0 A

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Measurement and Instrumentation
Instrument transformers are

Power transformers
Pottential transformers
Both current and potential transformers
Current transformers

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MORE MCQ ON Measurement and Instrumentation

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