A. reduces load handling capability of electrical system
B. results in more power losses in the electrical system
C. overloads alternators, transformers and distribution lines
D. results in more voltage drop in the line
E. results in all above
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 power consumed in a circuit element will be least when the phase difference between the current and voltage is__________?
A. 180″
B. 90°
C. 60°
D. 0° - 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 zero__________?
A. resistance
B. inductance
C. capacitance
D. both B. and C. - Power factor of the system is kept high__________?
A. to reduce line losses
B. to maximise the utilization of the capacities of generators, lines and transformers
C. to reduce voltage regulation of the line
D. due to all above reasons - 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 - The power is measured in terms of decibles in case of_________?
A. electronic equipment
B. transformers
C. current transformers
D. auto transformers - 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
