MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Design Electrical Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The area of the window depends on the window space factor. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 2. |
What is the formula of window space factor, when the transformer rating is 20 kVA? |
| A. | 10 / (30+kV) |
| B. | 12 / (30+kV) |
| C. | 8 / (30+kV) |
| D. | 19 / (30+kV) |
| Answer» D. 19 / (30+kV) | |
| 3. |
What does the insulation and copper of the transformer depend on? |
| A. | current rating |
| B. | voltage rating |
| C. | output power |
| D. | voltage rating and output power |
| Answer» E. | |
| 4. |
What does the window space factor depend on? |
| A. | it depends on the core |
| B. | it depends on the armature |
| C. | it depends on the insulation |
| D. | it depends on the insulation and copper |
| Answer» E. | |
| 5. |
WHAT_IS_THE_FORMULA_OF_WINDOW_SPACE_FACTOR,_WHEN_THE_TRANSFORMER_RATING_IS_20_KVA??$ |
| A. | 10 / (30+kV) |
| B. | 12 / (30+kV) |
| C. | 8 / (30+kV) |
| D. | 19 / (30+kV) |
| Answer» D. 19 / (30+kV) | |
| 6. |
The_area_of_the_window_depends_on_the_window_space_factor?$ |
| A. | true |
| B. | false |
| Answer» B. false | |
| 7. |
What is the formula for the window space factor, when the output is 1000 kVA? |
| A. | 12 / (30+kV) |
| B. | 10 / (30+kV) |
| C. | 9 / (30+kV) |
| D. | 11 / (30+kV) |
| Answer» B. 10 / (30+kV) | |
| 8. |
What is the relationship of the space factor value with the large and small outputs? |
| A. | small value for both large and small outputs |
| B. | large values for both large and small outputs |
| C. | large value for small output and small value for large outputs |
| D. | small value for small output and large value for large outputs |
| Answer» E. | |
| 9. |
What is the ratings of the transformers for using the empirical value of window space factor? |
| A. | 50-100 kVA |
| B. | 50-150 kVA |
| C. | 50-200 kVA |
| D. | 100-200 kVA |
| Answer» D. 100-200 kVA | |
| 10. |
What is the empirical value of window space factor, given the output is 1000kV? |
| A. | 0.09 |
| B. | 0.9 |
| C. | 0.009 |
| D. | 0.0009 |
| Answer» D. 0.0009 | |
| 11. |
What is the empirical formula for calculating the value of window space factor? |
| A. | window space factor = 10 / (30+kV) |
| B. | window space factor = 5 * (30+kV) |
| C. | window space factor = 10 * (30+kV) |
| D. | window space factor = 5 / (30+kV) |
| Answer» B. window space factor = 5 * (30+kV) | |
| 12. |
What does the insulation and copper of the transformer depends on? |
| A. | current rating |
| B. | voltage rating |
| C. | output power |
| D. | voltage rating and output power |
| Answer» E. | |
| 13. |
What does the window space factor depends on? |
| A. | it depends on the core |
| B. | it depends on the armature |
| C. | it depends on the insulation |
| D. | it depends on the insulation and copper |
| Answer» E. | |
| 14. |
What is window space factor? |
| A. | window space factor = copper area in the window – total window area |
| B. | window space factor = copper area in the window + total window area |
| C. | window space factor = copper area in the window * total window area |
| D. | window space factor = copper area in the window / total window area |
| Answer» E. | |