CONTROL SYSTEMS QUIZ

 20o.

 60o.

 45o.

 30o.

 GM and PM both +ve.

 GM -ve.

 GM and PM both -ve.

 PM - ve.

 nether 1 nor 2

 Centroid may not be a part of root locus

 Centroid may be a part of root locus

 both 1 and 2

 lag

 lead-lag

 lag-lead

 lead

 derivative controller

 proportional controller

 both 1 and 3

 integral controller

 be critically damped.

 provide damping which is slightly less than the critical value.

 be undamped.

 provide damping which is slightly more than the critical value.

 B dx/dt

 B d2x/dt2

 B *x

None of these

 K d2x/dt2

 K *x

 K dx/dt

None of these

 both 2 and 3

 integral controller

 derivative controller

 proportional controller

 the system parameters alone.

 initial conditions of input and output.

 nature of the output.

 nature of the input.