control systems MCQs – Page 3

Practise focused control systems questions with marked answers for exam preparation and subject revision.

control systems Mcqs

41. ________________directly converts temperature into voltage?
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A. Thermocouple

B. Gear train

C. None of the above

D. Potentiometer

E. LVDT

42. In a system low friction co-efficient facilitates___________?
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A. increased speed of response

B. increased velocity lag error

C. reduced time constant of the system

D. reduced velocity lag error

43. The transient response of a system is mainly due to________________?
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A. stored energy

B. friction

C. inertia forces

D. internal forces

44. A signal other than the reference input that tends to affect the value of controlled variable is known as_________________?
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A. reference input

B. control element

C. command

D. disturbance

45. A conditionally stable system exhibits poor stability at______________?
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A. none of the above

B. reduced values of open loop gain

C. increased values of open loop gain

D. low frequencies

46. The type 2 system has __________ at the origin?
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A. simple pole

B. two poles

C. no net pole

D. net pole

47. ____________is a part of the human temperature control system?
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A. Leg movement

B. Digestive system

C. Perspiration system

D. Ear

48. The effect of error damping is to______________?
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A. none of the above

B. provide larger settling lime

C. reduce steady state error

D. delay the response

E. any of the above

49. The type 0 system has ___________ at the origin?
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A. two poles

B. none of the above

C. no pole

D. net pole

E. simple pole

50. Mass, in force-voltage analogy, is analogous to________________?
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A. current

B. resistance

C. inductance

D. charge

51. An amplidyne can give which of the following characteristics ?
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A. None of the above

B. Constant current as well as constant voltage

C. Constant voltage

D. Constant current

E. Constant current, constant voltage and constant power

52. _______________is a closed loop system?
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A. Electric switch

B. Direct current generator

C. Auto-pilot for an aircraft

D. Car starter

53. As a result of introduction of negative feedback which of the following will not decrease ?
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A. Band width

B. Distortion

C. Overall gain

D. Instability

54. __________________can be extended to systems which are time-varying ?
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A. Bode-Nyquist stability methods

B. Root locus design

C. Transfer functions

D. State model representatives

55. The transfer function is applicable to which of the following ?
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A. Linear systems

B. Linear and time-variant systems

C. Non-linear systems

D. Linear and time-in variant systems

E. None of the above

56. _____________is the reference input minus the primary feedback?
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A. Manipulated variable

B. Primary feedback

C. Zero sequence

D. Actuating signal

57. 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_____________?
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A. always unstable

B. not necessarily stable

C. unstable

D. stable

E. any of the above

58. Which of the following statements is not necessarily correct for open control system ?
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A. Generally free from problems of non-linearities

B. Input command is the sole factor responsible for providing the control action

C. Less expensive

D. Presence of non-linearities causes malfunctioning

59. The type 1 system has _________ at the origin?
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A. no pole

B. two poles

C. simple pole

D. net pole

60. A.C. servomotor is basically a____________?
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A. single phase induction motor

B. two phase induction motor

C. universal motor

D. three phase induction motor

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Showing 41 to 60 of 102 mcqs