MCQOPTIONS
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MCQOPTIONS
This section includes 11 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 active power in a 17 resistor with 18 A current flowing through it. |
| A. | 5508 W |
| B. | 5104 W |
| C. | 5554 W |
| D. | 5558 W |
| Answer» B. 5104 W | |
| 2. |
Calculate the active power in a 181 H inductor. |
| A. | 2448 W |
| B. | 1789 W |
| C. | 4879 W |
| D. | 0 W |
| Answer» E. | |
| 3. |
Calculate the active power in a 457 F capacitor. |
| A. | 715 W |
| B. | 565 W |
| C. | 545 W |
| D. | 0 W |
| Answer» E. | |
| 4. |
The slope of the V-I curve is 27 . Calculate the value of resistance. Assume the relationship between voltage and current is a straight line. |
| A. | .384 |
| B. | .509 |
| C. | .354 |
| D. | .343 |
| Answer» C. .354 | |
| 5. |
Calculate the value of the frequency if the capacitive reactance is 13 and the value of the capacitor is 71 F. |
| A. | .0001725 Hz |
| B. | .0001825 Hz |
| C. | .0001975 Hz |
| D. | .0001679 Hz |
| Answer» B. .0001825 Hz | |
| 6. |
Calculate the shaft power developed by a motor using the given data: Eb = 404V and I = 25 A. Assume frictional losses are 444 W and windage losses are 777 W. |
| A. | 8879 W |
| B. | 2177 W |
| C. | 8911 W |
| D. | 8897 W |
| Answer» B. 2177 W | |
| 7. |
Calculate the moment of inertia of the rod about its center having a mass of 11 kg and length of 29 cm. |
| A. | .091 kgm<sup>2</sup> |
| B. | .072 kgm<sup>2</sup> |
| C. | .076 kgm<sup>2</sup> |
| D. | .077 kgm<sup>2</sup> |
| Answer» E. | |
| 8. |
Calculate the moment of inertia of the rod about its end having a mass of 39 kg and length of 88 cm. |
| A. | 9.91 kgm<sup>2</sup> |
| B. | 9.92 kgm<sup>2</sup> |
| C. | 9.96 kgm<sup>2</sup> |
| D. | 9.97 kgm<sup>2</sup> |
| Answer» D. 9.97 kgm<sup>2</sup> | |
| 9. |
Calculate the phase angle of the sinusoidal waveform x(t)=42sin(4700 t+2 3). |
| A. | 2 9 |
| B. | 2 5 |
| C. | 2 7 |
| D. | 2 3 |
| Answer» E. | |
| 10. |
The generated e.m.f from 16-pole armature having 57 turns driven at 78 rev/sec having flux per pole as 5 mWb, with lap winding is ___________ |
| A. | 44.16 V |
| B. | 44.15 V |
| C. | 44.46 V |
| D. | 44.49 V |
| Answer» D. 44.49 V | |
| 11. |
Calculate the frequency of the waveform x(t)=45sin(40 t+5 ). |
| A. | 24 Hz |
| B. | 27 Hz |
| C. | 23 Hz |
| D. | 20 Hz |
| Answer» E. | |