MCQOPTIONS
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MCQOPTIONS
This section includes 28 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When the transistor (CE arrangement) is in the cut off region, the collector current is ______________? |
| A. | ICBO |
| B. | ICEO |
| C. | (ß + 1) ICEO |
| D. | IC(sat) |
| Answer» C. (ß + 1) ICEO | |
| 2. |
When a transistor is driven to saturation, ideally the output is _____________? |
| A. | VCC |
| B. | 0 |
| C. | VCC/2 |
| D. | 2VCC |
| Answer» C. VCC/2 | |
| 3. |
When a transistor is used as an amplifier, it is operated in the _____________ region? |
| A. | Off |
| B. | Saturation |
| C. | Active |
| D. | None of the above |
| Answer» D. None of the above | |
| 4. |
When a transistor is driven to cut off, ideally the output is _______________? |
| A. | VCC |
| B. | 0 |
| C. | VCC/2 |
| D. | VCC/3 |
| Answer» B. 0 | |
| 5. |
When a rectangular voltage waveform is applied to a capacitor, then the current waveform is ______________? |
| A. | Rectangular |
| B. | Sinusoidal |
| C. | Sawtooth |
| D. | Square |
| Answer» B. Sinusoidal | |
| 6. |
The switch that has the fastest speed of operation is ____________ switch? |
| A. | Electronic |
| B. | Mechanical |
| C. | Electromechanical |
| D. | None of the above |
| Answer» B. Mechanical | |
| 7. |
The positive clipper is that which removes the ____________half-cycles of the input voltage? |
| A. | Negative |
| B. | Positive |
| C. | Both positive and negative |
| D. | None of the above |
| Answer» C. Both positive and negative | |
| 8. |
The multivibrator which generates square wave of its own is the ____________multivibrator? |
| A. | Monostable |
| B. | Bistable |
| C. | Astable |
| D. | None of the above |
| Answer» D. None of the above | |
| 9. |
The most inexpensive switch is _____________ switch? |
| A. | Electronic |
| B. | Mechanical |
| C. | Electromechanical |
| D. | None of the above |
| Answer» B. Mechanical | |
| 10. |
The maximum speed of electronic switch can be _____________operations per second? |
| A. | 104 |
| B. | 10 |
| C. | 1000 |
| D. | 109 |
| Answer» E. | |
| 11. |
The main disadvantage of a mechanical switch is that it_______________? |
| A. | Is operated mechanically |
| B. | Is costly |
| C. | Has high inertia |
| D. | None of the above |
| Answer» D. None of the above | |
| 12. |
One would find a clamping circuit in ___________________? |
| A. | Receiving antenna |
| B. | Radio transmitter |
| C. | Radio receiver |
| D. | Television receiver |
| Answer» E. | |
| 13. |
______________ multivibrator is a square wave oscillator? |
| A. | Monostable |
| B. | Astable |
| C. | Bistable |
| D. | None of the above |
| Answer» C. Bistable | |
| 14. |
In a multivibrator, we have___________ feedback? |
| A. | Negative |
| B. | 100 % positive |
| C. | Both positive and negative |
| D. | None of the above |
| Answer» C. Both positive and negative | |
| 15. |
If the input to an integrating circuit is a succession of alternating positive and negative pulses of very short duration, the output will be _____________wave A? |
| A. | Rectangular |
| B. | Triangular |
| C. | Sine |
| D. | Square |
| Answer» E. | |
| 16. |
If the input to a differentiating circuit is a saw-tooth wave, then output will be _____________? |
| A. | Square |
| B. | Triangular |
| C. | Sine |
| D. | Rectangular |
| Answer» E. | |
| 17. |
If d.c. supply of 10 V is fed to a differentiating circuit, then output will be_______________? |
| A. | 20 V |
| B. | 10 V |
| C. | 0 V |
| D. | None of the above |
| Answer» D. None of the above | |
| 18. |
If a square wave is fed to a differentiating circuit, the output will be _____________? |
| A. | Sine wave |
| B. | Sharp narrow pulses |
| C. | Rectangular wave |
| D. | Triangular wave |
| Answer» C. Rectangular wave | |
| 19. |
For an integrating circuit to be effective , the RC product should be____________ the time period of the input wave? |
| A. | 5 times greater than |
| B. | 5 times smaller than |
| C. | Equal to |
| D. | At least 10 times greater than |
| Answer» E. | |
| 20. |
For a differentiating circuit to be effective, the RC product should be ___________ the time period of the input wave? |
| A. | Equal to |
| B. | 5 times greater than |
| C. | 5 times smaller than |
| D. | At least 10 times greater than |
| Answer» E. | |
| 21. |
An integrating circuit is a simple RC series circuit with output taken across ______________? |
| A. | Both R and C |
| B. | R |
| C. | C |
| D. | None of the above |
| Answer» D. None of the above | |
| 22. |
An astable multivibrator has ________________? |
| A. | One stable state |
| B. | Two stable states |
| C. | No stable state |
| D. | None of the above |
| Answer» D. None of the above | |
| 23. |
A switch has ______________? |
| A. | One state |
| B. | Two states |
| C. | Three states |
| D. | None of the above |
| Answer» C. Three states | |
| 24. |
A relay is ___________switch? |
| A. | A mechanical |
| B. | An electronic |
| C. | An electromechanical |
| D. | None of the above |
| Answer» D. None of the above | |
| 25. |
A relay is superior to a mechanical switch because it _______________? |
| A. | Is relatively inexpensive |
| B. | Does not require moving contacts |
| C. | Combines control with power amplification |
| D. | None of the above |
| Answer» D. None of the above | |
| 26. |
A negative clipper removes the ______________half-cycles of the input voltage? |
| A. | Negative |
| B. | Positive |
| C. | Both positive and negative |
| D. | None of the above |
| Answer» B. Positive | |
| 27. |
A monostable vibrator has_____________ |
| A. | No stable state |
| B. | One stable state |
| C. | Two stable states |
| D. | None of the above |
| Answer» C. Two stable states | |
| 28. |
A differentiating circuit is a simple RC circuit with output taken across ____________? |
| A. | R |
| B. | C |
| C. | Both R and C |
| D. | None of the above |
| Answer» B. C | |