CONTROL SYSTEMS QUIZ

 initial conditions are assumed to be zero but loading is taken into account.

 initial conditions are assumed to be zero and the element is assumed to be not loaded.

 both initial conditions and loading are taken into account.

 initial conditions are taken into account but the element is assumed to be not loaded.

 Phase lead compensation shifts the gain crossover frequency to the right

 The maximum phase lag occurs at the arithmetic mean of the two corner frequencies.

 nether 1 nor 2

 both 1 and 2

  on LHS before zero.

  on RHS.

  on LHS.

  on origin.

 5.

 3.

 2.

 4.

 e-as*F(s)

 F(s+a)

 F(s)/(s+a)

 eas*F(s)

 under damped system.

 critically damped system.

 undamped system.

 over damped system.

None of these

  zero.

  infinite.

  feedback.

 60°

 180°

 360°

 120°

 2∠90°

 0.5∠10°

 0.5∠0°

 1∠0°

 (2s+1)/s²

 (2s+1)/(s+1)²

 (2s+2)/(s+1)²

 (2s+2)/s²