MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
A 10 MVA, 11 kV alternator has positive, negative and zero sequence reactance of 25%, 40%,10% respectively. The resistance that must be placed in the neutral such that zero sequence of fault current for a single phase to ground fault will not exceed the rated line current in ohms is |
| A. | 2.66 Ω |
| B. | 1.66 Ω |
| C. | 12.1 Ω |
| D. | 0.22 Ω |
| Answer» B. 1.66 Ω | |
| 2. |
_______ conductors are the latest trend of the extra high voltage lines. |
| A. | Bundled |
| B. | Parallel |
| C. | ACSR |
| D. | Bundled or ACSR |
| Answer» B. Parallel | |
| 3. |
The overall diameter of a stranded conductor if ‘x’ is the number of layers and each layer has a diameter ‘d’ will be |
| A. | (2x-1)d |
| B. | (3x-1)d |
| C. | (6x-3)d |
| D. | (2x+1)d |
| Answer» B. (3x-1)d | |
| 4. |
The number of the strands included in the stranded cables while implementing a similar cable equivalent of single strand should be ________ |
| A. | 3x2-3x+1 |
| B. | 2x2-3x+1 |
| C. | 3x2-2x+1 |
| D. | 3x2-x+1 |
| Answer» B. 2x2-3x+1 | |
| 5. |
The end effect information is included in the inductance of a transmission line. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The inductance of the transmission line is do not contain effect of earth electric field geometry while the capacitances contain. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Effect of earth’s presence on the magnetic field geometry is _________________ |
| A. | significant |
| B. | insignificant |
| C. | cannot be said |
| D. | none of the mentioned |
| Answer» B. insignificant | |
| 8. |
Effect of earth is considered insignificant while calculating the inductance of a single phase transmission line. |
| A. | True |
| B. | False |
| Answer» B. False | |