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MCQs

Total Questions : 125 | Page 5 of 13 pages
Question 41. In a stable control system saturation can cause which of the following ?
  1.    Low-level oscillations
  2.    High-level oscillations
  3.    Conditional stability
  4.    Overdamping
 Discuss Question
Answer: Option C. -> Conditional stability
Question 42. Pressure error can be measured by which of the following ?
  1.    Differential bellows and straingauge
  2.    Selsyn
  3.    Strain gauge
  4.    Strain gauge and potentiometer
 Discuss Question
Answer: Option A. -> Differential bellows and straingauge
Question 43. Is the reference input minus the primary feedback.
  1.    Manipulated variable
  2.    Zero sequence
  3.    Actuating signal
  4.    Primary feedback
 Discuss Question
Answer: Option C. -> Actuating signal
Question 44. A control system with excessive noise, is likely to suffer from
  1.    saturation in amplifying stages
  2.    loss of gain
  3.    vibrations
  4.    oscillations
 Discuss Question
Answer: Option A. -> saturation in amplifying stages
Question 45. The transfer function technique is considered as inadequate under which of the following conditions ?
  1.    Systems having complexities and non-linearities
  2.    Systems having stability problems
  3.    Systems having multiple input disturbances
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 46. In open loop system
  1.    the control action depends on the size of the system
  2.    the control action depends on system variables
  3.    the control action depends on the input signal
  4.    the control action is independent of the output
 Discuss Question
Answer: Option D. -> the control action is independent of the output
Question 47. Velocity error constant of a system is measured when the input to the system is unit _______ function.
  1.    parabolic
  2.    ramp
  3.    impulse
  4.    step
 Discuss Question
Answer: Option B. -> ramp
Question 48. The initial response when tne output is not equal to input is called
  1.    Transient response
  2.    Error response
  3.    Dynamic response
  4.    Either of the above
 Discuss Question
Answer: Option A. -> Transient response
Question 49. The transient response, with feedback system,
  1.    rises slowly
  2.    rises quickly
  3.    decays slowly
  4.    decays quickly
 Discuss Question
Answer: Option D. -> decays quickly
Question 50. Spring constant in force-voltage analogy is analogous to
  1.    capacitance
  2.    reciprocal of capacitance
  3.    current
  4.    resistance
 Discuss Question
Answer: Option B. -> reciprocal of capacitance

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