MCQOPTIONS
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MCQOPTIONS
This section includes 60 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A bistable multivibrator has _________________? |
| A. | Two stable states |
| B. | One stable state |
| C. | No stable state |
| D. | None of the above |
| Answer» B. One stable state | |
| 2. |
When the transistor (CE arrangement) is in the cut off region, the collector current is ___________. |
| A. | CBO |
| B. | CEO |
| C. | ß + 1) ICEO |
| D. | C(sat) |
| Answer» C. ß + 1) ICEO | |
| 3. |
For an integrating circuit to be effective , the RC product should be ___________ the time period of the input wave. |
| A. | times greater than |
| B. | times smaller than |
| C. | qual to |
| D. | t least 10 times greater than |
| Answer» E. | |
| 4. |
When a rectangular voltage waveform is applied to a capacitor, then the current waveform is ___________. |
| A. | ectangular |
| B. | inusoidal |
| C. | awtooth |
| D. | quare |
| Answer» B. inusoidal | |
| 5. |
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 | |
| 6. |
When a transistor is driven to saturation, ideally the output is ___________. |
| A. | VCC |
| B. | 0 |
| C. | VCC/2 |
| D. | 2VCC |
| Answer» C. VCC/2 | |
| 7. |
___________ multivibrator is a square wave oscillator. |
| A. | Monostable |
| B. | Astable |
| C. | Bistable |
| D. | None of the above |
| Answer» C. Bistable | |
| 8. |
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 | |
| 9. |
The most inexpensive switch is ___________ switch. |
| A. | Electronic |
| B. | Mechanical |
| C. | Electromechanical |
| D. | None of the above |
| Answer» B. Mechanical | |
| 10. |
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 | |
| 11. |
A relay is ___________ switch. |
| A. | A mechanical |
| B. | An electronic |
| C. | An electromechanical |
| D. | None of the above |
| Answer» D. None of the above | |
| 12. |
The maximum speed of electronic switch can be ___________ operations per second. |
| A. | 104 |
| B. | 10 |
| C. | 1000 |
| D. | 109 |
| Answer» E. | |
| 13. |
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 | |
| 14. |
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. | |
| 15. |
A switch has ___________. |
| A. | One state |
| B. | Two states |
| C. | Three states |
| D. | None of the above |
| Answer» C. Three states | |
| 16. |
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 | |
| 17. |
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 | |
| 18. |
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 | |
| 19. |
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 | |
| 20. |
A bistable multivibrator has ___________. |
| A. | Two stable states |
| B. | One stable state |
| C. | No stable state |
| D. | None of the above |
| Answer» B. One stable state | |
| 21. |
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 | |
| 22. |
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 | |
| 23. |
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 | |
| 24. |
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. | |
| 25. |
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 | |
| 26. |
When a transistor is driven to saturation, ideally the output is ___________.%! |
| A. | VCC |
| B. | 0 |
| C. | VCC/2 |
| D. | 2VCC |
| Answer» C. VCC/2 | |
| 27. |
___________ multivibrator is a square wave oscillator.%! |
| A. | Monostable |
| B. | Astable |
| C. | Bistable |
| D. | None of the above |
| Answer» C. Bistable | |
| 28. |
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 | |
| 29. |
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 | |
| 30. |
A switch has ___________.%! |
| A. | One state |
| B. | Two states |
| C. | Three states |
| D. | None of the above |
| Answer» C. Three states | |
| 31. |
The maximum speed of electronic switch can be ___________ operations per second.%! |
| A. | 104 |
| B. | 10 |
| C. | 1000 |
| D. | 109 |
| Answer» E. | |
| 32. |
The most inexpensive switch is ___________ switch.%! |
| A. | Electronic |
| B. | Mechanical |
| C. | Electromechanical |
| D. | None of the above |
| Answer» B. Mechanical | |
| 33. |
*$_The most inexpensive switch is ___________ switch.? |
| A. | Electronic |
| B. | Mechanical |
| C. | Electromechanical |
| D. | None of the above |
| Answer» B. Mechanical | |
| 34. |
*$_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 | |
| 35. |
*$_The maximum speed of electronic switch can be ___________ operations per second.? |
| A. | 104 |
| B. | 10 |
| C. | 1000 |
| D. | 109 |
| Answer» E. | |
| 36. |
*$_A switch has ___________.? |
| A. | One state |
| B. | Two states |
| C. | Three states |
| D. | None of the above |
| Answer» C. Three states | |
| 37. |
*/*_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 | |
| 38. |
%_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 | |
| 39. |
%_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 | |
| 40. |
%_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 | |
| 41. |
%_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 | |
| 42. |
_ If a square wave is fed to a differentiating circuit, the output will be ___________.$? |
| A. | Sine wave |
| B. | Sharp narrow pulses |
| C. | Rectangular wave |
| D. | Triangular wave |
| Answer» C. Rectangular wave | |
| 43. |
__A relay is ___________ switch.__ |
| A. | A mechanical |
| B. | An electronic |
| C. | An electromechanical |
| D. | None of the above |
| Answer» D. None of the above | |
| 44. |
__For a differentiating circuit to be effective, the RC product should be ___________ the time period of the input wave.__ |
| A. | Equal to |
| B. | 5 times greater than |
| C. | 5 times smaller than |
| D. | At least 10 times greater than |
| Answer» E. | |
| 45. |
__The positive clipper is that which removes the ___________ half-cycles of the input voltage.__ |
| A. | Negative |
| B. | Positive |
| C. | Both positive and negative |
| D. | None of the above |
| Answer» C. Both positive and negative | |
| 46. |
If the input to a differentiating circuit is a saw-tooth wave, then output will be ___________.$? |
| A. | Square |
| B. | Triangular |
| C. | Sine |
| D. | Rectangular |
| Answer» E. | |
| 47. |
An astable multivibrator has ___________.$? |
| A. | One stable state |
| B. | Two stable states |
| C. | No stable state |
| D. | None of the above |
| Answer» D. None of the above | |
| 48. |
When a rectangular voltage waveform is applied to a capacitor, then the current waveform is ___________.$? |
| A. | Rectangular |
| B. | Sinusoidal |
| C. | Sawtooth |
| D. | Square |
| Answer» B. Sinusoidal | |
| 49. |
For an integrating circuit to be effective , the RC product should be ___________ the time period of the input wave.$? |
| A. | 5 times greater than |
| B. | 5 times smaller than |
| C. | Equal to |
| D. | At least 10 times greater than |
| Answer» E. | |
| 50. |
When the transistor (CE arrangement) is in the cut off region, the collector current is ___________.$? |
| A. | ICBO |
| B. | ICEO |
| C. | (ß + 1) ICEO |
| D. | IC(sat) |
| Answer» C. (‚àö√º + 1) ICEO | |