The use of _________ instruments is merely confined within laboratories as standardizing instruments?

Related Mcqs:

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

A. Shunts B. Multipliers C. Current transformers D. Potential transformers E. All of the above...

For handling greater currents induction wattmeters are used in conjunction with______________?

A. potential transformers B. current transformers C. power transformers D. either of the above E. none of the above...

In a low power factor wattmeter the compensating coil is connected_______________?

A. in series with current coil B. in parallel with current coil C. in series with pressure coil D. in parallel with pressure coil...

In a 3-phase power measurement by two wattmeter method the reading of one of the wattmeter was zero. The power factor of the load must be_______________?

A. unity B. 0.5 C. 0.3 D. zero...

The gravity controlled instrument has crowded scale because current is proportional to________________?

A. balancing weight B. deflection angle C. sine of deflection angle...