MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Transformers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A three-phase transformer generally has the three magnetic circuits interlaced. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Why shell type 3-phase transformer is used in large power transforming applications? |
| A. | Can be made with more height |
| B. | Can be made with less height |
| C. | More height and less height flexibility |
| D. | Due to other reasons |
| Answer» C. More height and less height flexibility | |
| 3. |
In core type 3-phase transformer flux path chooses how many paths to return? |
| A. | 2 |
| B. | Single |
| C. | 3 |
| D. | Many |
| Answer» B. Single | |
| 4. |
Tappings are on _____________ |
| A. | LV side of a transformer |
| B. | HV side of transformer |
| C. | Not on any side |
| D. | On both sides |
| Answer» C. Not on any side | |
| 5. |
IN_CORE_TYPE_3-PHASE_TRANSFORMER_FLUX_PATH_CHOOSES_HOW_MANY_PATHS_TO_RETURN??$ |
| A. | 2 |
| B. | Single |
| C. | 3 |
| D. | Many |
| Answer» B. Single | |
| 6. |
A three-phase transformer generally has the three magnetic circuits interlaced.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Why_shell_type_3-phase_transformer_is_used_in_large_power_transforming_applications?$ |
| A. | Can be made with more height |
| B. | Can be made with less height |
| C. | More height and less height flexibility |
| D. | Due to other reasons |
| Answer» C. More height and less height flexibility | |
| 8. |
Tappings are on ____________? |
| A. | LV side of a transformer |
| B. | HV side of transformer |
| C. | Not on any side |
| D. | On both sides |
| Answer» C. Not on any side | |
| 9. |
Where the tappings are provided in a transformer? |
| A. | At the phase end of LV side |
| B. | At the phase end of HV side |
| C. | At the neutral side end of the HV side |
| D. | At the middle of HV side |
| Answer» E. | |
| 10. |
In three phase bank phases are ___________________ |
| A. | the phases are electrically not connected and magnetically independent |
| B. | the phases are electrically not connected and magnetically dependent |
| C. | the phases are electrically connected and magnetically independent |
| D. | the phases are electrically connected and magnetically dependent |
| Answer» D. the phases are electrically connected and magnetically dependent | |
| 11. |
In mines we use _______________ |
| A. | a single unit of 3-phase transformer |
| B. | a bank of 3 single phase transformers |
| C. | use of 3-phase transformer is avoided |
| D. | a single unit or a bank |
| Answer» C. use of 3-phase transformer is avoided | |
| 12. |
Three phase transformer compare to a bank of 3 single phase transformers is ____________ |
| A. | Cheaper |
| B. | Costlier |
| C. | More in space |
| D. | Can’t be determined |
| Answer» B. Costlier | |
| 13. |
How 3-phase transformers are constructed? |
| A. | A bank of 3 single phase transformers |
| B. | A single 3-phase transformer with the primary and secondary of each phase wound on three legs of a common core |
| C. | Single 3-phase transformer or a bank of 3 1-phase transformers |
| D. | By different method |
| Answer» D. By different method | |
| 14. |
3-phase transformers compare to 1-phase transformers ________ |
| A. | More economical |
| B. | Easy in construction |
| C. | Easy to construct |
| D. | Easy to handle |
| Answer» B. Easy in construction | |
| 15. |
Which type of winding is used in 3-phase shell-type transformer? |
| A. | Circular type |
| B. | Sandwich type |
| C. | Cylindrical type |
| D. | Rectangular type |
| Answer» C. Cylindrical type | |