A. electronic equipment
B. transformers
C. current transformers
D. auto transformers
Related Mcqs:
- The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is_________?
A. 4 kVAR
B. 6 kVAR
C. 8 kVAR
D. 16 kVAR - The ratio of active power to apparent power is known as factor__________?
A. demand
B. load
C. power
D. form - The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is__________?
A. 12 kW
B. 22 kW
C. 32 kW
D. 64 kW - The r.m.s. value and mean value is the same in the case of___________?
A. triangular wave
B. sine wave
C. square wave
D. half wave rectified sine wave - In the case of an unsymmetrical alternating current the average value must always be taken over__________?
A. unsymmetrical part of the wave form
B. the quarter cycle
C. the half cycle
D. the whole cycle - Power factor of an inductive circuit is usually improved by connecting capacitor to it in____________?
A. parallel
B. series
C. either A. or (b)
D. none of the above - Power factor of the following circuit will be unity
A. inductance
B. capacitance
C. resistance
D. both A. and B. - Power factor of the following circuit will be zero__________?
A. resistance
B. inductance
C. capacitance
D. both B. and C. - In a circuit containing R, L and C, power loss can take place in____________?
A. C only
B. L only
C. R only
D. all above - All definitions of power factor of a series R-L-C circuit are correct except__________?
A. ratio of net reactance and impedance
B. ratio of kW and kVA
C. ratio of J and Z
D. ratio of W and VA
