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Measurement and Instrumentation

Measurement and Instrumentation
In which of the transformer is the secondary nearly short circuited under normal operating condition?

 PT.
 Power transformer.
 Distribution transformer.
 CT.

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Measurement and Instrumentation
Consider the following statements : In a measuring instrument, 1. Linearity is more important than sensitivity. 2. High precision indicates high accuracy 3. Accuracy cannot be better than resolution. Of these statements

 2 and 3 are correct
 1 and 2 are correct
 1, 2 and 3 are correct
 1 and 3 are correct

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Measurement and Instrumentation
How many time-base circuits does a dual face CRO can have?

 2.
 4.
 1.
 3.

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Measurement and Instrumentation
For handling greater currents induction watt-meters are used in conjunction with

Potential transformers
Either of the above
Current transformers
Power transformers

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Measurement and Instrumentation
The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be

 1.5%
 0.5%
 1%
 1.2%

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Measurement and Instrumentation
Which wave has the least form factor?

Sine wave
Triangular wave
Square wave
Rectangular wave

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