MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Mechatronics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
DIAC’s do not work with DC voltage. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
What is the full form of TRIAC? |
| A. | Triode attenuating current |
| B. | Triode for alternating current |
| C. | Trioxide for analogous current |
| D. | Triode analogous current |
| Answer» C. Trioxide for analogous current | |
| 3. |
What is the full form of DIAC? |
| A. | Diode for alternating current |
| B. | Diode attenuating current |
| C. | Dioxide for analogous current |
| D. | Diode analogous current |
| Answer» B. Diode attenuating current | |
| 4. |
DIAC’s get damaged when voltage of wrong polarity is applied at its terminals. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
DIAC starts to conduct current after some threshold voltage. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
A SIDAC (Silicon diode for alternating current) does not conduct below a break-over voltage. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What is the full form of SIDAC? |
| A. | Silicon diode for alternating current |
| B. | Silicate diode for alternating current |
| C. | Silicon dioxide for alternating current |
| D. | Silicon diode for analogous current |
| Answer» B. Silicate diode for alternating current | |
| 8. |
How many layers of semiconductor does a DIAC have? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 9. |
What is the breakdown voltage of three layered DIAC (Diode alternating current)? |
| A. | Approximately 30 volts |
| B. | Approximately 20 volts |
| C. | Approximately 50 volts |
| D. | Approximately 40 volts |
| Answer» B. Approximately 20 volts | |
| 10. |
DIAC can act as AC switch. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
DIAC is a unidirectional device. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
Which is an example of DIAC? |
| A. | OptoNCDT ILR 1030 |
| B. | OptoNCDT1420 |
| C. | NTE6408 |
| D. | EddyNCDT 3301 |
| Answer» D. EddyNCDT 3301 | |
| 13. |
What are present at the potential barrier of a PN junction when no external voltage is applied? |
| A. | Electrons |
| B. | Holes |
| C. | Positive Ions |
| D. | Positive and Negative Ions |
| Answer» E. | |
| 14. |
How many terminals does a DIAC (Diode alternating current) have? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 15. |
How many minimum thyristors are required to make a TRIAC (Triode alternating current)? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |