MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
For the lower values of current, round conductors would be convenient to use. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 2. |
For the lower values of current, round conductors would be convenient to use? |
| A. | true |
| B. | false |
| Answer» B. false | |
| 3. |
What should be the range of current density in the stator windings? |
| A. | 2-5 A per mm<sup>2</sup> |
| B. | 4-5 A per mm<sup>2</sup> |
| C. | 3-5 A per mm<sup>2</sup> |
| D. | 2-3 A per mm<sup>2</sup> |
| Answer» D. 2-3 A per mm<sup>2</sup> | |
| 4. |
What is the formula for stator turns per phase? |
| A. | stator turns per phase = Stator voltage per phase / 4.44 * f * maximum flux / stator winding factor |
| B. | stator turns per phase = Stator voltage per phase * 4.44 * f * maximum flux * stator winding factor |
| C. | stator turns per phase = Stator voltage per phase / 4.44 * f * maximum flux * stator winding factor |
| D. | stator turns per phase = Stator voltage per phase * 4.44 * f * maximum flux / stator winding factor |
| Answer» D. stator turns per phase = Stator voltage per phase * 4.44 * f * maximum flux / stator winding factor | |
| 5. |
What is the initial assumption for the value of winding factor? |
| A. | 0.9 |
| B. | 0.95 |
| C. | 0.93 |
| D. | 0.92 |
| Answer» C. 0.93 | |
| 6. |
What is the formula for flux per pole? |
| A. | flux per pole = average magnetic flux * pole pitch * length |
| B. | flux per pole = average magnetic flux / pole pitch * length |
| C. | flux per pole = average magnetic flux * pole pitch / length |
| D. | flux per pole = average magnetic flux * pole pitch + length |
| Answer» B. flux per pole = average magnetic flux / pole pitch * length | |
| 7. |
What class does the plastic foil baked with polyamide fibres belong to? |
| A. | Y |
| B. | B |
| C. | F |
| D. | H |
| Answer» D. H | |
| 8. |
What class does the slot and phase insulation belong to? |
| A. | B |
| B. | Y |
| C. | H |
| D. | E |
| Answer» E. | |
| 9. |
What type of winding is made use of small motors? |
| A. | single layer mush winding |
| B. | single layer lap winding |
| C. | single layer wave winding |
| D. | double layer wave winding |
| Answer» B. single layer lap winding | |
| 10. |
What type of winding is generally used for the stators? |
| A. | double layer wave winding |
| B. | double layer lap winding |
| C. | single layer wave winding |
| D. | single layer lap winding |
| Answer» C. single layer wave winding | |