Parameter Optimization MCQ

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• Phase margin of a system is used to specify which of the following?
  ক

  Frequency response

  খ

  Absolute stability

  গ

  Relative

  ঘ

  Conditional stability
• Which of the following is the best method for determining the stability and transient response?
  ক

  Root locus

  খ

  Bode plot

  গ

  Nyquist plot

  ঘ

  None of the mentioned
• 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 :
  ক

  Not necessarily stable

  খ

  Stable

  গ

  Unstable

  ঘ

  Always unstable
• In case of type-1 system steady state acceleration is :
  ক

  Unity

  খ

  Infinity

  গ

  Zero

  ঘ

  10
• Velocity error constant of a system is measured when the input to the system is unit _______ function.
  ক

  Parabolic

  খ

  Ramp

  গ

  Impulse

  ঘ

  Step
• The position and velocity errors of a type-2 system are :
  ক

  Constant, constant

  খ

  Constant, infinity

  গ

  Zero, constant

  ঘ

  Zero, zero
• The type 2 system has at the origin.
  ক

  No net pole

  খ

  Net pole

  গ

  Simple pole

  ঘ

  Two poles
• The type 1 system has ______ at the origin.
  ক

  No pole

  খ

  Net pole

  গ

  Simple pole

  ঘ

  Two poles
• The type 0 system has ______ at the origin.
  ক

  No pole

  খ

  Net pole

  গ

  Simple pole

  ঘ

  Two poles
• A conditionally stable system exhibits poor stability at :
  ক

  Low frequencies

  খ

  Reduced values of open loop gain

  গ

  Increased values of open loop gain

  ঘ

  High frequencies