MCQOPTIONS
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MCQOPTIONS
This section includes 65 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. |
With feed back ____________ reduces? |
| A. | system stability |
| B. | system gain |
| C. | system stability and gain |
| D. | none of the above |
| Answer» C. system stability and gain | |
| 2. |
With feed back __________ reduces? |
| A. | system stability |
| B. | system gain |
| C. | system stability and gain |
| D. | none of the above |
| Answer» C. system stability and gain | |
| 3. |
With feedback __________ increases? |
| A. | system stability |
| B. | sensitivity |
| C. | gain |
| D. | effects of disturbing signals |
| Answer» B. sensitivity | |
| 4. |
Zero initial condition for a system means_______________? |
| A. | input reference signal is zero |
| B. | zero stored energy |
| C. | an initial movement of moving parts |
| D. | system is at rest and no energy is stored in any of its components |
| Answer» E. | |
| 5. |
Which of the following can be measured by LVDT ? |
| A. | Displacement |
| B. | Velocity |
| C. | Acceleration |
| D. | Any of the above |
| Answer» E. | |
| 6. |
When the initial conditions of a system are specified to be zero it implies that the system is________________? |
| A. | at rest without any energy stored in it |
| B. | working normally with reference input |
| C. | working normally with zero reference input |
| D. | at rest but stores energy |
| Answer» E. | |
| 7. |
When the initial conditions of a system are specified to be zero it implies that the system is______________? |
| A. | at rest without any energy stored in it |
| B. | working normally with reference input |
| C. | working normally with zero reference input |
| D. | at rest but stores energy |
| Answer» E. | |
| 8. |
Velocity error constant of a system is measured when the input to the system is unit ___________ function? |
| A. | parabolic |
| B. | ramp |
| C. | impulse |
| D. | step |
| Answer» C. impulse | |
| 9. |
The viscous friction co-efficient, in force-voltage analogy, is analogous to______________? |
| A. | charge |
| B. | resistance |
| C. | reciprocal of inductance |
| D. | reciprocal of conductance |
| E. | none of the above |
| Answer» C. reciprocal of inductance | |
| 10. |
The type 2 system has __________ at the origin? |
| A. | no net pole |
| B. | net pole |
| C. | simple pole |
| D. | two poles |
| Answer» E. | |
| 11. |
The type 0 system has ___________ at the origin? |
| A. | no pole |
| B. | net pole |
| C. | simple pole |
| D. | two poles |
| E. | none of the above |
| Answer» B. net pole | |
| 12. |
The type 1 system has _________ at the origin? |
| A. | no pole |
| B. | net pole |
| C. | simple pole |
| D. | two poles |
| Answer» D. two poles | |
| 13. |
The transient response of a system is mainly due to________________? |
| A. | inertia forces |
| B. | internal forces |
| C. | stored energy |
| D. | friction |
| Answer» D. friction | |
| 14. |
The transient response, with feedback system_____________? |
| A. | rises slowly |
| B. | rises quickly |
| C. | decays slowly |
| D. | decays quickly |
| Answer» E. | |
| 15. |
The temperature, under thermal and electrical system analogy, is considered analogous to_______________? |
| A. | voltage |
| B. | current |
| C. | capacitance |
| D. | charge |
| E. | none of the above |
| Answer» B. current | |
| 16. |
The position and velocity errors of a type-2 system are_____________? |
| A. | constant, constant |
| B. | constant, infinity |
| C. | zero, constant |
| D. | zero, zero |
| Answer» D. zero, zero | |
| 17. |
The phase lag produced by transportation relays_____________? |
| A. | is independent of frequency |
| B. | is inverseh’proportional to frequency |
| C. | increases linearly with frequency |
| D. | decreases linearly with frequency |
| Answer» D. decreases linearly with frequency | |
| 18. |
The output of a feedback control system must be a function of_________________? |
| A. | reference and output |
| B. | reference and input |
| C. | input and feedback signal |
| D. | output and feedback signal |
| Answer» B. reference and input | |
| 19. |
The initial response when tne output is not equal to input is called_____________? |
| A. | Transient response |
| B. | Error response |
| C. | Dynamic response |
| D. | Either of the above |
| Answer» B. Error response | |
| 20. |
The frequency and time domain are related through which of the following ? |
| A. | Laplace Transform and Fourier Integral |
| B. | Laplace Transform |
| C. | Fourier Integral |
| D. | Either B. or C. |
| Answer» B. Laplace Transform | |
| 21. |
The first order control system, which is well designed, has a_______________? |
| A. | small bandwidth |
| B. | negative time constant |
| C. | large negative transfer function pole |
| D. | none of the above |
| Answer» D. none of the above | |
| 22. |
The effect of error damping is to______________? |
| A. | provide larger settling lime |
| B. | delay the response |
| C. | reduce steady state error |
| D. | any of the above |
| E. | none of the above |
| Answer» D. any of the above | |
| 23. |
The capacitance, in force-current analogy, is analogous to_____________? |
| A. | momentum |
| B. | velocity |
| C. | displacement |
| D. | mass |
| Answer» E. | |
| 24. |
The band width, in a feedback amplifier_______________? |
| A. | remains unaffected |
| B. | decreases by the same amount as the gain increase |
| C. | increases by the sane saaaajajt as the gain decrease |
| D. | decreases by the same amount as the gain decrease |
| Answer» D. decreases by the same amount as the gain decrease | |
| 25. |
Regenerative feedback implies feedback with_______________? |
| A. | oscillations |
| B. | step input |
| C. | negative sign |
| D. | positive sign |
| Answer» E. | |
| 26. |
Mass, in force-voltage analogy, is analogous to________________? |
| A. | charge |
| B. | current |
| C. | inductance |
| D. | resistance |
| Answer» D. resistance | |
| 27. |
_____________is the reference input minus the primary feedback? |
| A. | Manipulated variable |
| B. | Zero sequence |
| C. | Actuating signal |
| D. | Primary feedback |
| Answer» D. Primary feedback | |
| 28. |
_____________is not a final control element? |
| A. | Control valve |
| B. | Potentiometer |
| C. | Electropneumatic converter |
| D. | Servomotor |
| Answer» C. Electropneumatic converter | |
| 29. |
_______________is an open loop control system? |
| A. | Ward Leonard control |
| B. | Field controlled D.C. motor |
| C. | Stroboscope |
| D. | Metadyne |
| Answer» C. Stroboscope | |
| 30. |
____________is a part of the human temperature control system? |
| A. | Digestive system |
| B. | Perspiration system |
| C. | Ear |
| D. | Leg movement |
| Answer» C. Ear | |
| 31. |
_______________is a closed loop system? |
| A. | Auto-pilot for an aircraft |
| B. | Direct current generator |
| C. | Car starter |
| D. | Electric switch |
| Answer» B. Direct current generator | |
| 32. |
increases the steady state accuracy? |
| A. | Integrator |
| B. | Differentiator |
| C. | Phase lead compensator |
| D. | Phase lag compensator |
| Answer» B. Differentiator | |
| 33. |
In thermal-electrical analogy charge is considered analogous to_______________? |
| A. | heat flow |
| B. | reciprocal of heat flow |
| C. | reciprocal of temperature |
| D. | temperature |
| E. | none of the above |
| Answer» E. none of the above | |
| 34. |
In pneumatic control systems the control valve used as final control element converts____________? |
| A. | pressure signal to electric signal |
| B. | pressure signal to position change |
| C. | electric signal to pressure signal |
| D. | position change to pressure signal |
| E. | none of the above |
| Answer» C. electric signal to pressure signal | |
| 35. |
In open loop system_____________? |
| A. | the control action depends on the size of the system |
| B. | the control action depends on system variables |
| C. | the control action depends on the input signal |
| D. | the control action is independent of the output |
| Answer» E. | |
| 36. |
In liquid level and electrical system analogy, voltage is considered analogous to_____________? |
| A. | head |
| B. | liquid flow |
| C. | liquid flow rate |
| D. | none of the above |
| Answer» B. liquid flow | |
| 37. |
In force-voltage analogy, velocity is analogous to______________? |
| A. | current |
| B. | charge |
| C. | inductance |
| D. | capacitance |
| Answer» B. charge | |
| 38. |
In electrical-pneumatic system analogy the current is considered analogous to_____________? |
| A. | velocity |
| B. | pressure |
| C. | air flow |
| D. | air flow rate |
| Answer» E. | |
| 39. |
In closed loop control system, with positive value of feedback gain the overall gain of the system will______________? |
| A. | decrease |
| B. | increase |
| C. | be unaffected |
| D. | any of the above |
| Answer» B. increase | |
| 40. |
In an open loop control system____________? |
| A. | Output is independent of control input |
| B. | Output is dependent on control input |
| C. | Only system parameters have effect on the control output |
| D. | None of the above |
| Answer» B. Output is dependent on control input | |
| 41. |
In a system zero initial condition means that______________? |
| A. | The system is at rest and no energy is stored in any of its components |
| B. | The system is working with zero stored energy |
| C. | The system is working with zero reference signal |
| Answer» B. The system is working with zero stored energy | |
| 42. |
In a system low friction co-efficient facilitates___________? |
| A. | reduced velocity lag error |
| B. | increased velocity lag error |
| C. | increased speed of response |
| D. | reduced time constant of the system |
| Answer» B. increased velocity lag error | |
| 43. |
In a control system integral error compensation _________________ steady state error? |
| A. | increases |
| B. | minimizes |
| C. | does not have any effect on |
| D. | any of the above |
| Answer» C. does not have any effect on | |
| 44. |
In a control system the output of the controller is given to_____________? |
| A. | final control element |
| B. | amplifier |
| C. | comparator |
| D. | sensor |
| E. | none of the above |
| Answer» B. amplifier | |
| 45. |
If the gain of the critical damped system is increased it will behave as______________? |
| A. | oscillatory |
| B. | critically damped |
| C. | overdamped |
| D. | underdamped |
| E. | none of the above |
| Answer» E. none of the above | |
| 46. |
If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is_____________? |
| A. | not necessarily stable |
| B. | stable |
| C. | unstable |
| D. | any of the above |
| Answer» B. stable | |
| 47. |
has tendency to oscillate______________? |
| A. | Open loop system |
| B. | Closed loop system |
| C. | Both A. and B. |
| D. | Neither A. nor B. |
| Answer» C. Both A. and B. | |
| 48. |
___________From which of the following transfer function can be obtained ? |
| A. | Signal flow graph |
| B. | Analogous table |
| C. | Output-input ratio |
| D. | Standard block system |
| E. | None of the above |
| Answer» B. Analogous table | |
| 49. |
________________directly converts temperature into voltage? |
| A. | Thermocouple |
| B. | Potentiometer |
| C. | Gear train |
| D. | LVDT |
| E. | None of the above |
| Answer» B. Potentiometer | |
| 50. |
__________________can be extended to systems which are time-varying ? |
| A. | Bode-Nyquist stability methods |
| B. | Transfer functions |
| C. | Root locus design |
| D. | State model representatives |
| Answer» E. | |