Computer Programming MCQs

5739 MCQs  (Page 291 of 574)

A power factor meter has________________?
A. One current circuit and two pressure circuits
B. One current circuit and one pressure circuit
C. Two current circuits and one pres¬sure circuit
D. None of the above
A Weston synchronoscope is a________________?
A. Moving coil instrument
B. Moving iron instrument
C. Dynamometer instrument
D. None of the above
The power factor of a single phase load can be calculated if the instruments available are_____________?
A. One voltmeter and one ammeter
B. One voltmeter, one ammeter and one wattmeter
C. One voltmeter, one ammeter and one energy meter
D. Any of the above
The two pressure coils of a single phase power factor meter have_________________?
A. The same dimensions and the same number of turns
B. The same dimension but different number of turns
C. The same number of turns but different dimensions
D. None of the above