UGC-NET 2017: Control System SpeedTest Quiz 16

Attempt now to get your rank among 533 students!

Question 1

A single input single output linear time invariant system described by nth order differential equation is adequately described in state space by

• A state equations
• B state equations
• C state equations
• D state equations

Question 2

The damped frequency of oscillations due to dominant poles of the system transfer function
is _____rad/sec.

• A1.4140
• B2.134
• C0.567
• D3.013

Question 3

The state transition matrix

• A
• B
• C
• D

Question 4

A closed-loop control system is stable if the Nyquist plot of the corresponding open-loop transfer function

• AEncircles the s-plane point (-1 + j0) in the counterclockwise direction as many times as the number of right-half s-plane poles.
• Bencircles the s-plane point (0–j1) in the clockwise direction as many times as the number of right-half s-plane poles.
• CEncircles the s-plane point (-1 + j0) in the counterclockwise direction as many times as the number of left-half s-plane poles.
• DEncircles the s-plane point (-1 + j0) in the counterclockwise direction as many times as the number of right-half s-plane zeros.

Question 5

Negative feedback in a closed-loop control system DOES NOT

• Areduce the overall gain
• Breduce bandwidth
• Cimprove disturbance rejection
• Dreduce sensitivity to parameter variation

• 533 attempts
• 4 upvotes
• 12 comments