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Measurement and Instrumentation

Measurement and Instrumentation
Which of the quantity consists of unit as newton-second?

 Impulse
 velocity
 Acceleration
 Speed

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Measurement and Instrumentation
An Ohmmeter is a

Moving coil instrument
Moving iron instrument
None of the listed here
Dynamometer instrument

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Measurement and Instrumentation
A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is

 4.8 μH/radian.
 114.6 μH/radian.
 12.0 μH/radian.
 2.0 μH/radian.

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Measurement and Instrumentation
Which of the following devices may be used for extending the range of instruments?

Current transformers
Potential transformers
Shunt
All of the listed here

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Measurement and Instrumentation
If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then

 V1 = 200V and V2 = 300V.
 V1 = 0V and V2 = 0V.
 V1 = 300V and V2 = 200V.
 V1 = 250V and V2 = 250V.

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Measurement and Instrumentation
Piezoelectric effect is carried out in

  composite filter.
  constant k prototype.
  crystal filter.
  m derived.

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