MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
Second lowest order harmonic present in 3-Φ fully controlled rectifier is __________ |
| A. | 5th |
| B. | 7th |
| C. | 3rd |
| D. | 2nd |
| Answer» C. 3rd | |
| 2. |
Full form of VRF. |
| A. | Voltage ripple factor |
| B. | Voltage revert factor |
| C. | Volume ripple factor |
| D. | Volume revert factor |
| Answer» B. Voltage revert factor | |
| 3. |
Calculate the value of THD if the distortion factor is .8. |
| A. | 76 % |
| B. | 75 % |
| C. | 74 % |
| D. | 73 % |
| Answer» C. 74 % | |
| 4. |
Calculate the value of Voltage ripple factor if the Form factor is 1.1. |
| A. | 45.8 % |
| B. | 46.2 % |
| C. | 47.5 % |
| D. | 49.9 % |
| Answer» B. 46.2 % | |
| 5. |
What is the range of size of the motor (kW) for efficiency nearly equals to 90%? |
| A. | 15-150 |
| B. | 0-2 |
| C. | 3-15 |
| D. | 150-250 |
| Answer» B. 0-2 | |
| 6. |
Which test is used to determine the conditions where electric motors are being used? |
| A. | Thermography |
| B. | Geography |
| C. | Seismography |
| D. | Anthropology |
| Answer» B. Geography | |