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Measurement and Instrumentation

Measurement and Instrumentation
Which of the quantity consists of SI unit as Candela?

 Force
 Impulse
 Luminous intensity
 Velocity

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Measurement and Instrumentation
A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read

 - 795 W.
 + 795 W.
 + 597 W.
  - 597 W.

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Measurement and Instrumentation
With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be

1kHz
500Hz
50Hz
100Hz

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Measurement and Instrumentation
In eddy current damping, disc or former is made of a material that is a

Conductor but non magnetic
Non conductor and non magnetic
Conductor but magnetic
Non conductor but magnetic

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Measurement and Instrumentation
In two wattmeter method of power measurement if the total power is measured by one wattmeter only then power factor of the system is

 0.5.
 1.
 0.
 none of above.

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Measurement and Instrumentation
The effect of load resistance is important in measurement of

 resistance of ammeter.
 both A and B.
 resistance of shunt.
 resistance of shunt winding.

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