MCQOPTIONS
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MCQOPTIONS
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 | |
| 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 | |
| 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 | |
| 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. | |
| 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.
|
| 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 | |
| 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.
|
| 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 | |