MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Transformers with high leakage impedance is used in ___________ |
| A. | arc welding |
| B. | power distribution |
| C. | power generating terminals |
| D. | none of the mentioned |
| Answer» B. power distribution | |
| 2. |
A single phase transformer of 2200/220 V having rated l.v. current of 150 A has to undergo open circuit test on h.v side. The instruments used are voltmeter of 200V and ammeter of 1A. Then the results ___________ |
| A. | will be wrong |
| B. | will be accurate |
| C. | of ammeter will burn |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
A single phase transformer of 2000/200 V having rated l.v. current of 100 A has to undergo short circuit test on l.v. side. Which of the below instruments range should be used? |
| A. | 200V,10A |
| B. | 20V, 10A |
| C. | 300V,100A |
| D. | 200V,50A |
| Answer» B. 20V, 10A | |
| 4. |
A single phase transformer of 2200/220 V having rated l.v. current of 150 A has to undergo open circuit test on h.v. side. Which of the below instruments range should be used? |
| A. | 6A, 200V |
| B. | 150A, 22V |
| C. | 60A, 220V |
| D. | 6A, 20V |
| Answer» B. 150A, 22V | |
| 5. |
To conduct the short circuit test, test is conducted on the ___________ |
| A. | l.v. side |
| B. | h.v. side |
| C. | primary |
| D. | secondary |
| Answer» C. primary | |
| 6. |
To conduct the open circuit test, test is conducted on the _____________ |
| A. | l.v. side |
| B. | h.v. side |
| C. | primary |
| D. | secondary |
| Answer» B. h.v. side | |
| 7. |
Power required during the open circuit and short circuit test is? |
| A. | losses incurring in the transformer |
| B. | executing the power requirements by measuring instruments |
| C. | power for the core losses only |
| D. | all of the mentioned |
| Answer» B. executing the power requirements by measuring instruments | |