MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Power Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify the circuit given below. |
| A. | Full wave series inverter |
| B. | Half wave series inverter |
| C. | Full wave bridge inverter |
| D. | Full wave parallel inverter |
| Answer» D. Full wave parallel inverter | |
| 2. |
Single-phase full bridge inverters requires |
| A. | 4 SCRs and 2 diodes |
| B. | 4 SCRs and 4 diodes |
| C. | 2 SCRs and 4 diodes |
| D. | 2 SCRs and 2 diodes |
| Answer» C. 2 SCRs and 4 diodes | |
| 3. |
The output current wave of a single-phase full bridge inverter on RL load is |
| A. | a sine wave |
| B. | a square wave |
| C. | a triangular wave |
| D. | constant dc |
| Answer» D. constant dc | |
| 4. |
Find the conduction time of the diodes if the SCRs are fired at 0 and T/2 respectively in a single phase half wave inverter with R load. |
| A. | 0 |
| B. | T/2 |
| C. | 2/T |
| D. | insufficient data |
| Answer» B. T/2 | |
| 5. |
In the below circuit, if Vs/2 = 50 V. Find, the rms AC voltage that would be ideally obtained. |
| A. | 50 V |
| B. | 100 V |
| C. | 0.707 x 50 V |
| D. | 0.707 x 100 V |
| Answer» D. 0.707 x 100 V | |
| 6. |
In the below given circuit, T1 is fired at 0,T and so on and T2 at T/2, 3T/2 etc. What is the frequency of the alternating voltage obtained? |
| A. | 50 Hz |
| B. | T Hz |
| C. | 1/T Hz |
| D. | T/2 Hz |
| Answer» D. T/2 Hz | |
| 7. |
The output of a single-phase half bridge inverter on R load is ideally |
| A. | a sine wave |
| B. | a square wave |
| C. | a triangular wave |
| D. | constant dc |
| Answer» C. a triangular wave | |
| 8. |
Below given is a |
| A. | SCR based inverter |
| B. | MOSFET based inverter |
| C. | IGBT based inverter |
| D. | None of the mentioned |
| Answer» C. IGBT based inverter | |
| 9. |
The voltage in a single phase half wave inverter varies between |
| A. | Vs and 0 |
| B. | Vs/2 and 0 |
| C. | Vs/2 and –Vs/2 |
| D. | Vs and –Vs |
| Answer» D. Vs and –Vs | |
| 10. |
What is the voltage across the R load when only T2 is conducting? |
| A. | Vs |
| B. | Vs/2 |
| C. | 2Vs |
| D. | Zero |
| Answer» C. 2Vs | |