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. |
Single core cables for an ac systems are not provided with armouring. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
A substation records a dip in the voltage received by 15%. To overcome this issue, the booster employed at the substation which should have a _____________ |
| A. | low voltage and high current generator |
| B. | high voltage and low current generator |
| C. | medium voltage but high current generator |
| D. | any of the mentioned |
| Answer» B. high voltage and low current generator | |
| 3. |
A substation records a dip in the voltage received by 15%. To overcome this issue, the booster employed at the substation is ___________ |
| A. | a series wound generator coupled to dc shunt motor |
| B. | a series wound motor |
| C. | a shunt motor operating at lagging power factor |
| D. | a shunt motor coupled to differential motor |
| Answer» B. a series wound motor | |
| 4. |
The distribution feeding system of ring main system has ______________ |
| A. | one feeder |
| B. | 2 feeders |
| C. | 4 feeders |
| D. | cannot be said |
| Answer» B. 2 feeders | |
| 5. |
Distributors fed at both ends has an advantage of ________________ |
| A. | continuous supply |
| B. | fault isolation |
| C. | being economical |
| D. | all of the mentioned |
| Answer» E. | |
| 6. |
For an ac three-phase four wire system, having a voltage of 415V, with load of 120 kW and resistance of 0.05 at power factor of 0.75. The incurred copper losses of the system is ____ |
| A. | 4.955 kW |
| B. | 47 kW |
| C. | 49 kW |
| D. | 7.9 kW |
| Answer» B. 47 kW | |