MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Electric Drives knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Calculate the phase angle of the sinusoidal waveform y(t)=55sin(4 t+ 8). |
| A. | 8 |
| B. | 5 |
| C. | 7 |
| D. | 4 |
| Answer» B. 5 | |
| 2. |
Calculate the useful power developed by a motor using the given data: Pin = 3000 W, Ia = 60 A, Ra = .4 . Assume frictional losses are 200 W and windage losses are 400 W. |
| A. | 970 W |
| B. | 960 W |
| C. | 980 W |
| D. | 990 W |
| Answer» C. 980 W | |
| 3. |
Which of the following devices should be used as a switch for high power and high voltage application? |
| A. | GTO |
| B. | MOSFET |
| C. | TRIAC |
| D. | Thyristor |
| Answer» E. | |
| 4. |
Calculate the time period of the waveform x(t)=24sin(24 t+ 4). |
| A. | .064 sec |
| B. | .047 sec |
| C. | .083 sec |
| D. | .015 sec |
| Answer» D. .015 sec | |
| 5. |
R.M.S value of the sinusoidal waveform V=Vmsin( t+ ). |
| A. | V<sub>m</sub> 2<sup> </sup> |
| B. | V<sub>m</sub> 2<sup> </sup> |
| C. | V<sub>m</sub> 2<sup> </sup> |
| D. | V<sub>m</sub> 3<sup> </sup> |
| Answer» B. V<sub>m</sub> 2<sup> </sup> | |
| 6. |
The unit of angular velocity is rad/s3. |
| A. | True |
| B. | False |
| Answer» C. | |