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. |
THE_CHARGING_CURRENT_OF_A_400_KV_IS_______THAT_OF_220_KV_LINE_OF_THE_SAME_LENGTH.?$ |
| A. | more than |
| B. | less than |
| C. | equal to |
| D. | none of the mentioned |
| Answer» B. less than | |
| 2. |
Voltage regulation in the power system is __________$ |
| A. | rise in voltage at receiving end |
| B. | dip in voltage at receiving end |
| C. | rise in voltage at sending end |
| D. | dip in voltage at sending end |
| Answer» B. dip in voltage at receiving end | |
| 3. |
In a three phase system the three-phase fault MVA is always higher than the LG fault MVA at a bus? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
A large bus system whose voltage and frequency remain constant independent of the power exchange between the synchronous machine and the bus is called ________________ |
| A. | infinite bus |
| B. | load bus |
| C. | generator bus |
| D. | cannot be determined |
| Answer» B. load bus | |
| 5. |
If Xa is the armature reactance of a synchronous machine and Xl is the leakage reactance of the same machine, then the synchronous reactance is ____________ |
| A. | X<sub>a</sub>+X<sub>l</sub> |
| B. | ¬Ω(X<sub>a</sub>) |
| C. | 1/2(X<sub>a</sub>+X<sub>l</sub>) |
| D. | None of the mentioned |
| Answer» B. ¬¨¬®≈í¬©(X<sub>a</sub>) | |
| 6. |
The per unit value of any quantity is usually given by _____________ |
| A. | (The actual value in any units)/(The base base value in same in same units) |
| B. | (The base base value in same in same units)/(The actual value in any units) |
| C. | The actual value in any units* The actual value in any units |
| D. | 1/(The base base value) |
| Answer» B. (The base base value in same in same units)/(The actual value in any units) | |