MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Transformers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is the problem with cast resin transformers? |
| A. | Voids |
| B. | Less efficiency |
| C. | Low capacity |
| D. | Unavailability |
| Answer» B. Less efficiency | |
| 2. |
HVDC LCCs have ______________ |
| A. | 1 degree of freedom |
| B. | 2 degrees of freedom |
| C. | 5 degrees of freedom |
| D. | Many degrees of freedom |
| Answer» B. 2 degrees of freedom | |
| 3. |
Efficient LCC HVDC converters generally use __________ |
| A. | thyristor |
| B. | mercury valves |
| C. | diodes |
| D. | mechanical switches |
| Answer» B. mercury valves | |
| 4. |
Electronic converters for HVDC can be divided into _______ |
| A. | two types |
| B. | three types |
| C. | many types |
| D. | only one type is possible |
| Answer» B. three types | |
| 5. |
Tap winding is constructed so as to ____________________ |
| A. | maximize voltage regulation |
| B. | minimize the voltage regulation |
| C. | maximize the impedance regulation |
| D. | minimize the impedance regulation |
| Answer» E. | |
| 6. |
Insulation of HVDC transformers should be ___________ |
| A. | dry always |
| B. | wet always |
| C. | can be dry or wet |
| D. | no need of insulation |
| Answer» B. wet always | |
| 7. |
HVDC converter transformers are generally __________________ |
| A. | unidirectional |
| B. | didirectional |
| C. | nondirectional |
| D. | multidirectional |
| Answer» C. nondirectional | |
| 8. |
HVDC transformers are used widely _____________ |
| A. | for transmission purpose |
| B. | for generation purpose |
| C. | for supplying DC machines |
| D. | for every use of transformer |
| Answer» B. for generation purpose | |