Control Systems [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 76 - 79 of 81

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Question 76

Control Systems

Appeared in Year: 2020

Question

MCQ▾

The pole-zero map of a rational function G (s) is shown below. When the closed contour is mapped into the G (s) -plane, then the mapping encircles.

The Pole-Zero Map of a Rational Function

Choices

Choice (4)Response

a.

the point of the G (s) -plane once in the clockwise direction.

b.

the point of the G (s) -plane once in the counter-clockwise direction.

c.

the origin of the G (s) -plane once in the counter-clockwise direction.

d.

the origin of the G (s) -plane once in the clockwise direction.

Question 77

Control Systems

Appeared in Year: 2020

Question

Numeric Answer▾

Consider the following closed loop control system

Loop Control System

Where and . If the steady state error for a unit ramp is 0.1, then the value of K is ________

Question 78

Appeared in Year: 2020

Question

MCQ▾

The characteristic equation of a system is

In the root locus plot for the given system, as K varies from 0 to , the break-away or break-in point (s) lie within

Choices

Choice (4)Response

a.

b.

c.

d.

Question 79

Control Systems

Appeared in Year: 2020

Question

Numeric Answer▾

The loop transfer function of a negative feedback system is

The value of K, for which the system is marginally stable, is …

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