Explore topic-wise MCQs in Power Systems.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Power Systems knowledge and support exam preparation. Choose a topic below to get started.

1.

Assume a 275 kV transmission line having the following line constants:A = 0.85 5 ; B = 200 75
If a load is connected at receiving end at unity power factor but maintaining the same voltage profile. The receiving end voltage if the compensation equipment is not installed will be __________

A. 245 kV
B. 280 kV
C. 255 kV
D. 272 kV
Answer» B. 280 kV
Discussion
2.

Assume a 275 kV transmission line having the following line constants:A = 0.8 5 ; B = 200 75
If a load is connected at receiving end at unity power factor but maintaining the same voltage profile. Then _________ compensation will be needed at ______

A. capacitive, receiving end
B. inductive, sending end
C. capacitive, sending end
D. inductive, receiving end
Answer» B. inductive, sending end
Discussion
3.

Assume a 275 kV transmission line having the following line constants:A = 0.8 5 ; B = 200 75
If a load is connected at receiving end at unity power factor but maintaining the same voltage profile. Will this system now need any type of compensation? If so, then which one?

A. Yes, capacitive
B. No
C. Yes, inductive
D. Yes, inductive and capacitive
Answer» B. No
Discussion
4.

Assume a 275 kV transmission line having the following line constants:A = 0.8 5 ; B = 200 75
If a load is connected at receiving end at unity power factor but maintaining the same voltage profile. Will this system now need any type of compensation?

A. Yes
B. No
C. Cannot be said
D. Never
Answer» B. No
Discussion
5.

Assume a 275 kV transmission line having the following line constants:A = 0.8 5 ; B = 200 75
For obtaining 275 kV voltage at the receiving end obtaining unity power factor, the power angle required to be set as __________

A. 26.23
B. 22
C. 25
D. 24
Answer» B. 22
Discussion
6.

Assume a 275 kV transmission line having the following line constants:A = 0.8 5 ; B = 200 75
For obtaining 275 kV voltage at the receiving end obtaining unity power factor, the power transmitted will be _____________

A. 124 MW
B. 117.2 MW
C. 116 MW
D. 110 MW
Answer» B. 117.2 MW
Discussion
7.

Choose the most feasible method for raising the power to be delivered at the reactive end.
(i)Reducing the line reactance

A. n(ii)Raising the voltage level
B. (i)
C. (ii)
D. (i), (ii)
E. None of the methods
Answer» B. (i)
Discussion
8.

If a line is considered with negligible power losses, then the real power transmitted will be proportional to voltage drop and the reactive power drop is proportional to cos .

A. True
B. False
Answer» C.
Discussion