MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 protective component is not provided on small distribution transformers? |
| A. | Overfluxing protection |
| B. | Buchholz relay |
| C. | Overcurrent protection |
| D. | Overcurrent and overvolt protection |
| Answer» C. Overcurrent protection | |
| 2. |
Which of the following can be used for HV winding in distribution transformers? |
| A. | Coil winding |
| B. | Foil winding |
| C. | Cross-over coil |
| D. | Single dash folding |
| Answer» D. Single dash folding | |
| 3. |
Voltage per turn in distribution transformers is ____________ |
| A. | very high |
| B. | very low |
| C. | depends on application |
| D. | depends on other components of system |
| Answer» C. depends on application | |
| 4. |
WHICH_OF_THE_FOLLOWING_CAN_BE_USED_FOR_HV_WINDING_IN_DISTRIBUTION_TRANSFORMERS??$ |
| A. | Coil winding |
| B. | Foil winding |
| C. | Cross-over coil |
| D. | Single dash folding |
| Answer» D. Single dash folding | |
| 5. |
Which of the following protective component is not provided on small distribution transformers?$ |
| A. | Overfluxing protection |
| B. | Buchholz relay |
| C. | Overcurrent protection |
| D. | Overcurrent and overvolt protection |
| Answer» C. Overcurrent protection | |
| 6. |
Voltage per turn in distribution transformers is ___________? |
| A. | very high |
| B. | very low |
| C. | depends on application |
| D. | depends on other components of system |
| Answer» C. depends on application | |
| 7. |
Foil winding provides ________________ |
| A. | less mechanical short circuit strength |
| B. | low degree of electromagnetic balance |
| C. | high degree of electromagnetic balance |
| D. | can’t tell by just winding type |
| Answer» D. can‚Äö√Ñ√∂‚àö√ë‚àö¬•t tell by just winding type | |
| 8. |
Foil windings are used for distribution transformers _________________________ |
| A. | low voltage winding |
| B. | high voltage winding |
| C. | for both windings |
| D. | not used |
| Answer» E. | |
| 9. |
How power losses and noise levels are lowered down? |
| A. | By using another core material |
| B. | By using step-lap construction |
| C. | By using Different winding method |
| D. | By using different oil |
| Answer» C. By using Different winding method | |
| 10. |
Joints are used in distribution transformers because _____________ |
| A. | smaller in size |
| B. | economical aspects |
| C. | availability |
| D. | less losses |
| Answer» E. | |
| 11. |
Distribution transformers have _______________ |
| A. | smaller size than Power transformer |
| B. | larger size than power transformers |
| C. | size can be more or less depending on type |
| D. | more weight than power transformers |
| Answer» B. larger size than power transformers | |
| 12. |
In a power or distribution transformer about 10 per cent end turns are heavily insulated _______________ |
| A. | to withstand the high voltage, drop due to line surge produced by the shunting capacitance of the end turns |
| B. | to absorb the line surge voltage and save the winding of transformer from damage |
| C. | to reflect the line surge and save the winding of a transformer from damage |
| D. | insufficient information |
| Answer» B. to absorb the line surge voltage and save the winding of transformer from damage | |
| 13. |
Distribution transformers are generally designed for maximum efficiency around __________ |
| A. | 90% load |
| B. | zero load |
| C. | 25% load |
| D. | 50% load |
| Answer» E. | |