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Measurement and Instrumentation

Measurement and Instrumentation
In a portable instrument , the controlling torque is provided by

Eddy currents
All of the listed here
Spring
Gravity

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Measurement and Instrumentation
The scale of a rectifier instrument is

None of the listed here
Either linear or non linear
Linear
Non-linear

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Measurement and Instrumentation
Dynamic errors are caused by

 observational error
 environmental error
 instrument not responding fast
 human error

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Measurement and Instrumentation
A thermo couple ammeter gives full scale deflection of 10 A, when it reads one fifth of the scale, the current will be

 2 A.
 4 A.
  4.47 A.
 5.78 A.

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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

5 A
0 A
2.5 A
None of the listed here

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Measurement and Instrumentation
The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when

 R1 = 3R2.
 R1 = R2.
 R1 = R2/2.
 R1 = 2R2.

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MORE MCQ ON Measurement and Instrumentation

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