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Measurement and Instrumentation

Measurement and Instrumentation
The scale of hot wire ammeter is

 Absloute linear.
 Cramped.
  Non Linear.
 Linear.

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Measurement and Instrumentation
A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be

 25 W.
 100 W.
  0 W.
 50 W.

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Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as

 (400 ± 2.24) A
 (400 ± 1) A
 (400 ±5) A
 (400 ± 3) A

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Measurement and Instrumentation
_______ is used to measure the flow of air around aeroplane.

 Orifice.
 nucleus.
  Anemometer.
 Venturimeter.

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Measurement and Instrumentation
Resistances can be measured with the help of

Ohmmeters and resistance bridges
Wattmeters
Ammeters
Voltmeters

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Measurement and Instrumentation
Wien bridge is useful for measuring

Low frequency
Very high frequency
High frequency
Medium frequency

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MORE MCQ ON Measurement and Instrumentation

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