MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Electronic Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A LED will glow if connected under reverse bias configuration. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following is not an advantage of using a LED? |
| A. | High response time |
| B. | Compatibility with solid-state circuits |
| C. | Rugged construction and high lifetime |
| D. | No need for a heat sink in long run |
| Answer» E. | |
| 3. |
Which of the following voltages may be considered as a safe and sufficient voltage for the operation of a LED? |
| A. | 0.7 V |
| B. | 5 V |
| C. | 2.7 V |
| D. | -5 V |
| Answer» D. -5 V | |
| 4. |
Which of the following materials is used to make LEDs? |
| A. | Silicon |
| B. | GaAsP |
| C. | Germanium |
| D. | Selenium |
| Answer» C. Germanium | |
| 5. |
At 298 K, the nominal Zener voltage is found to be equal to 10 V. Given that the value of the temperature coefficient is 0.072 (%/K), what is the nominal Zener Voltage at 398 K? |
| A. | 9.46 V |
| B. | 9.54 V |
| C. | 0.54 V |
| D. | 10.54 V |
| Answer» E. | |
| 6. |
Which of the following is not a part of the equivalent circuit of a Zener diode? |
| A. | Dynamic Resistance |
| B. | DC Battery |
| C. | Ideal diode |
| D. | Piecewise linear model of diode |
| Answer» D. Piecewise linear model of diode | |
| 7. |
A silicon semiconductor diode when subjected to ohmmeter testing gives high resistance in both directions. Which of the following is the correct inference to be drawn? |
| A. | Diode is faulty |
| B. | Power failure to the Ohmmeter |
| C. | Diode is short-circuited |
| D. | Diode is open circuited |
| Answer» B. Power failure to the Ohmmeter | |
| 8. |
A silicon semiconductor diode when subjected to ohmmeter testing gives low resistance in both directions. Which of the following is the correct inference to be drawn? |
| A. | Diode is faulty |
| B. | Power failure to the Ohmmeter |
| C. | Diode is short-circuited |
| D. | Diode is open circuited |
| Answer» D. Diode is open circuited | |
| 9. |
What is the expected reading obtained on a Digital Display Meter with diode-checking function when a proper functioning silicon semiconductor diode is connected across its leads in the reverse bias configuration? |
| A. | 0.67 V |
| B. | 0.3 V |
| C. | Open Loop Indication |
| D. | Varies with the diode |
| Answer» D. Varies with the diode | |
| 10. |
Which of the following equipment can’t be used to check the condition of a diode? |
| A. | Digital Display Meter |
| B. | Ohmmeter |
| C. | Curve Tracer |
| D. | CRO |
| Answer» E. | |
| 11. |
WHICH_OF_THE_FOLLOWING_IS_NOT_A_PART_OF_THE_EQUIVALENT_CIRCUIT_OF_A_ZENER_DIODE??$ |
| A. | Dynamic Resistance |
| B. | DC Battery |
| C. | Ideal diode |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
Which of the following materials is used to make LEDs?$ |
| A. | Silicon |
| B. | GaAsP |
| C. | Germanium |
| D. | All of the mentioned |
| Answer» C. Germanium | |
| 13. |
At_298_K,_the_nominal_Zener_voltage_is_found_to_be_equal_to_10_V._Given_that_the_value_of_Temperature_coefficient_is_0.072_(%/K),_what_is_the_nominal_Zener_Voltage_at_398_K?$ |
| A. | 9.46 V |
| B. | 9.54 V |
| C. | 0.54 V |
| D. | 10.54 V |
| Answer» E. | |
| 14. |
A LED will glow, if connected under reverse bias configuration: |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
Which of the following is an advantage of using a LED? |
| A. | Low response time |
| B. | Compatibility with solid-state circuits |
| C. | Rugged construction and high lifetime |
| D. | All of the mentioned |
| Answer» E. | |
| 16. |
What is the order of magnitude of the response time of LED? |
| A. | 10<sup>-6</sup> |
| B. | 10<sup>-9</sup> |
| C. | 10<sup>-15</sup> |
| D. | 10<sup>-3</sup> |
| Answer» C. 10<sup>-15</sup> | |
| 17. |
Which_of_the_following_voltages_may_be_considered_as_a_safe_and_sufficient_voltage_for_the_operation_of_a_LED? |
| A. | 0.7 V |
| B. | 5 V |
| C. | 2.7 V |
| D. | -5 V |
| Answer» D. -5 V | |
| 18. |
Which material is generally used for the manufacture of Zener diode? |
| A. | Silicon |
| B. | Germanium |
| C. | Mercury |
| D. | None of the mentioned |
| Answer» B. Germanium | |
| 19. |
How can the location of the Zener region be controlled in the diode characteristic curve? |
| A. | By changing the value of Iz |
| B. | By changing the doping concentration of the diode |
| C. | By changing the operating temperature |
| D. | Can’t be changed |
| Answer» C. By changing the operating temperature | |
| 20. |
A silicon semiconductor diode when subjected to ohmmeter testing gives low resistance in both the directions. Which of the following is the correct inference to be drawn? |
| A. | Diode is faulty |
| B. | Power failure to the Ohmmeter |
| C. | Diode is short-circuited |
| D. | Can’t be determined |
| Answer» D. Can‚Äö√Ñ√∂‚àö√ë‚àö¬•t be determined | |
| 21. |
A diode on being checked by a DDM with diode checking function results in an open loop indication in both directions. Which of the following is the correct inference drawn from the given situation? |
| A. | Power failure to the DDM |
| B. | Diode is faulty |
| C. | Diode is proper |
| D. | None of the mentioned |
| Answer» C. Diode is proper | |
| 22. |
What is the expected reading obtained on a Digital Display Meter with diode-checking function when a proper functioning silicon semiconductor diode is connected across its leads in the forward bias configuration? |
| A. | 0.67 V |
| B. | 0.3 V |
| C. | Open Loop Indication |
| D. | Varies with the diode |
| Answer» B. 0.3 V | |
| 23. |
Which of the following equipment may be used to check the condition of a diode? |
| A. | Digital Display Meter |
| B. | Ohmmeter |
| C. | Curve Tracer |
| D. | All of the mentioned |
| Answer» E. | |