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Measurement and Instrumentation

Measurement and Instrumentation
A galvanometer has

Fluid friction damping
Eddy current damping
Spring coil damping
Air friction damping

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Measurement and Instrumentation
Basically potential meter is a device for

Comparing two voltages
Comparing two currents
Measuring a current
Measuring a voltage

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Measurement and Instrumentation
A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be

 12.6 V.
 15 V.
 11.1 V.
  10.6 V.

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Measurement and Instrumentation
The pointer of an indicating instrument is generally made of _______

Soft steel
Aluminium
Silver
Copper

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Measurement and Instrumentation
Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is

 0.6 lead.
 0.6 lag.
 0.917 lag.
 0.917 lead.

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

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

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MORE MCQ ON Measurement and Instrumentation

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