MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Electric Drives Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Calculate the three-phase power using the following data: Vp=23 V, Ip=23 A, ∅=60. |
| A. | 793.5 W |
| B. | 790 W |
| C. | 792 W |
| D. | 791 W |
| Answer» B. 790 W | |
| 2. |
A 3 – phase, 4 pole IM is supplied from a 40 Hz source. Calculate rotor frequency when the rotor runs 100 rpm. |
| A. | 35 Hz |
| B. | 36.6 Hz |
| C. | 9 Hz |
| D. | 8 Hz |
| Answer» C. 9 Hz | |
| 3. |
What is the speed of the 11th order harmonics in the induction motor? |
| A. | Ns |
| B. | Ns/11 |
| C. | 2×Ns |
| D. | Nr |
| Answer» C. 2×Ns | |
| 4. |
What is the speed of the 6th order time harmonics in the induction motor? |
| A. | Ns |
| B. | Ns/6 |
| C. | 6×Ns |
| D. | 0 |
| Answer» D. 0 | |