MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Reactive power is positive in the case of the capacitor. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Reactive power is positive in the case of the inductor. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Calculate the equivalent resistance when two resistances are connected in series of values 12 Ω, 10 Ω. |
| A. | 32 Ω |
| B. | 22 Ω |
| C. | 47 Ω |
| D. | 17 Ω |
| Answer» C. 47 Ω | |
| 4. |
Calculate the equivalent inductance when n inductors are connected in series of values L. |
| A. | n2L H |
| B. | nL H |
| C. | .5L H |
| D. | 2 H |
| Answer» C. .5L H | |
| 5. |
Calculate the quality factor for the pure capacitor. |
| A. | inf |
| B. | 0 |
| C. | 1 |
| D. | 2 |
| Answer» B. 0 | |
| 6. |
Calculate the quality factor for the purely inductive coil. |
| A. | inf |
| B. | 10 |
| C. | 3 |
| D. | 6 |
| Answer» B. 10 | |
| 7. |
The minimum value of the impedance in case of the series RLC network is ___________ |
| A. | R |
| B. | 0 |
| C. | Xl |
| D. | Xc |
| Answer» B. 0 | |
| 8. |
During the open circuit condition, the current is equal to ______ |
| A. | 1 A |
| B. | 0 A |
| C. | 4 A |
| D. | 7 A |
| Answer» C. 4 A | |
| 9. |
The Thevenin voltage of a dead circuit is zero volts. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
All networks are always circuits. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Calculate the energy stored in the inductor if the current value is 4 A and inductance value is 1 H. |
| A. | 4 J |
| B. | 2 J |
| C. | 8 J |
| D. | 5 J |
| Answer» D. 5 J | |
| 12. |
Calculate the energy stored in the capacitor if the voltage across the capacitor is 20 V and capacitance value is 2 F. |
| A. | 400 J |
| B. | 200 J |
| C. | 100 J |
| D. | 50 J |
| Answer» B. 200 J | |
| 13. |
Full form of WRIM. |
| A. | Wound round induction motor |
| B. | World cage induction motor |
| C. | Wolf cage induction motor |
| D. | Squirrel cage inverter motor |
| Answer» B. World cage induction motor | |
| 14. |
The polarity of back e.m.f changes in which of the method? |
| A. | Plugging |
| B. | Regenerative braking |
| C. | Dynamic braking |
| D. | Rheostatic braking |
| Answer» B. Regenerative braking | |
| 15. |
Which braking method is the best method for obtaining high braking torque? |
| A. | Regenerative braking |
| B. | Plugging |
| C. | Dynamic braking |
| D. | Rheostatic braking |
| Answer» C. Dynamic braking | |