MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Insulator capacitance is does not play significant role in HVDC lines |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The overvoltage that occur mainly under converter stations are due to _________(i) Lightening and switching overvoltage(ii) Transients produced in conductors(iii) Overvoltage due to fault clearingChoose the correct option. |
| A. | (i), (ii), (iii) |
| B. | (ii), (iii) |
| C. | (iii) |
| D. | (i), (ii) |
| Answer» B. (ii), (iii) | |
| 3. |
Which of the DC links can be operated when a fault occurs in the transmission line? |
| A. | Bipolar link and Homopolar link |
| B. | Monopolar link and Bipolar link |
| C. | Monopolar link |
| D. | Bipolar link |
| Answer» B. Monopolar link and Bipolar link | |
| 4. |
Homopolar link is employed instead of bipolar link to ___________ |
| A. | reduce corona loss |
| B. | reduce radio interference |
| C. | improve reliability |
| D. | all of the mentioned |
| Answer» B. reduce radio interference | |
| 5. |
If the currents in the two conductors of bipolar HDVC link is same, then _______ |
| A. | ground current is zero |
| B. | two poles work independently |
| C. | ground current zero and two poles work independently |
| D. | none of the mentioned |
| Answer» C. ground current zero and two poles work independently | |
| 6. |
(i) Bipolar link has two conductors (ii) Both conductors have same magnitude of voltage. |
| A. | (i) is False & (ii) is True |
| B. | (i) is True & (ii) is True |
| C. | Both are false |
| D. | (i) is True & (ii) is False |
| Answer» C. Both are false | |
| 7. |
(i) Monopolar DC link has one energised conductor of positive polarity.(ii) It was ground as return pathOpt the most appropriate. |
| A. | (i) is False & (ii) is True |
| B. | (i) is True & (ii) is True |
| C. | Both are false |
| D. | (i) is True & (ii) is False |
| Answer» B. (i) is True & (ii) is True | |
| 8. |
Which of the above is not a DC link? |
| A. | Monopolar link |
| B. | Bipolar link |
| C. | Homopolar link |
| D. | None of the mentioned |
| Answer» E. | |
| 9. |
Smooth reactor is connected between _____________ |
| A. | DC output of converter and load |
| B. | load and ground |
| C. | source and input of converter |
| D. | any of the mentioned |
| Answer» B. load and ground | |
| 10. |
Ripple of the DC-output at power converter is ____________ |
| A. | maximum value of instantaneous difference between average and instantaneous value |
| B. | minimum value of instantaneous difference between average and instantaneous value |
| C. | average value of output |
| D. | maximum value of instantaneous value |
| Answer» B. minimum value of instantaneous difference between average and instantaneous value | |