Control Systems [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 66 - 70 of 81

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Question 66

Appeared in Year: 2016

Question

Numeric Answer▾

The asymptotic Bode phase plot of , with k and both positive, is shown below.

The Asymptotic Bode Phase Plot

The value of is …

Question 67

Appeared in Year: 2017

Question

MCQ▾

A second order LTI system is described by the following state equation.

When and are the two state variables and denote the input. The output . The system is

Choices

Choice (4)Response

a.

Critically Damped

b.

Under Damped

c.

Over Damped

d.

Undamped (oscillatory)

Question 68

Appeared in Year: 2017

Question

Numeric Answer▾

A unity feedback control system is characterized by the open loop transfer function

The value of k for which the system oscillates at is …

Question 69

Appeared in Year: 2017

Question

MCQ▾

Which of the following statement is incorrect?

Choices

Choice (4)Response

a.

Lead compensator is used to reduce the settling time

b.

Lag compensator always stabilizes an unstable system

c.

Lead compensator may increase the order of a system

d.

Lag compensator is used to reduce the steady state error.

Question 70

Appeared in Year: 2015

Question

Numeric Answer▾

The characteristics equation of an LTI system is given by . The number of roots that lie strictly in the left half of s-plane is …

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