Explore topic-wise MCQs in Power Systems.

This section includes 6 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.

For the given distribution system the maximum voltage at the midpoint will be ________

A. 155.6 V
B. 311.12 V
C. 622 V
D. 220 V
Answer» B. 311.12 V
Discussion
2.

For the single phase 2-wire system, the maximum voltage between the outer wires and earth is ______________

A. V/ 2
B. 2V
C. V
D. 2V
Answer» B. 2V
Discussion
3.

A DC 2-wire system with mid-point earthed having cross-sectional area of each conductor be a and resistance R1 . If this is replaced by monopolar system, then saving of copper will be ______

A.
B. b
C. 2
D. 4
Answer» B. b
Discussion
4.

A DC 2-wire system with mid-point earthed having cross-sectional area of each conductor be a and resistance R1 . If the DC tow wire replaces the system, then the ratio of volume of each conductor V1/V2 will be ___________

A.
B.
C. 4
D. 2
Answer» B.
Discussion
5.

For the figure shown, having a 2-wire dc system where mid point is unearthed, having resistance of 20 ohms, with a power transmitted of 5 MW at the voltage level of 440 kV.The power loss of the distribution system will be ___________

A. n<a href="https://www.sanfoundry.com/wp-content/uploads/2017/11/power-systems-questions-answers-distribution-system-1-q5.png"><img alt="The power loss of the distribution system will be 2583 W if the DC tow wire" class="alignnone size-full wp-image-182439" height="222" src="https://www.sanfoundry.com/wp-content/uploads/2017/11/power-systems-questions-answers-distribution-system-1-q5.png" width="290"/></a>
B. 5165 W
C. 515 kW
D. 10330 W
E. 2583 W
Answer» E. 2583 W
Discussion
6.

For the figure shown, having a 2-wire dc system where mid point is earthed, having resistance of 20 ohms, with a power transmitted of 5 MW at the voltage level of 440 kV.The power loss of the distribution system will be ___________

A. n<a href="https://www.sanfoundry.com/wp-content/uploads/2017/11/power-systems-questions-answers-distribution-system-1-q4.png"><img alt="The power loss of the distribution system will be 5165 W for power transmitted of 5 MW" class="alignnone size-full wp-image-182438" height="222" src="https://www.sanfoundry.com/wp-content/uploads/2017/11/power-systems-questions-answers-distribution-system-1-q4.png" width="290"/></a>
B. 5165 W
C. 515 kW
D. 10330 W
E. 2583 W
Answer» B. 5165 W
Discussion