Control Systems [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 54 - 59 of 81

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Question 54

Appeared in Year: 2016

Question

MCQ▾

The number and direction of encirclement around the point in the complex plane by the Nyquist plot of is

Choices

Choice (4)Response

a.

One, clockwise

b.

Zero

c.

Two, clockwise

d.

One, anti-clockwise

Question 55

Appeared in Year: 2016

Question

MCQ▾

A first order low pass filter of time constant T is excited with different input signals (with zero initial conditions up to ) Match the excitation signals with the corresponding signals with the corresponding time response for :

Choices

Choice (4)Response

a.

b.

c.

d.

Question 56

Appeared in Year: 2015

Question

MCQ▾

A network is described by the state model as

The transfer function is …

Choices

Choice (4)Response

a.

b.

c.

d.

Question 57

Appeared in Year: 2016

Question

Numeric Answer▾

The open loop transfer function of a unity-feedback control system is given by

For the peak overshoot of the closed-loop system to a unit step input to be , the value of K is …

Question 58

Appeared in Year: 2015

Question

Numeric Answer▾

The open loop transfer function of a plant in a unity feedback configuration is given as . The value of the gain for which lies on root locus is …

Question 59

Appeared in Year: 2017

Question

MCQ▾

Which one of the following options correctly describes the locations of the roots of the equation on the complex plane?

Choices

Choice (4)Response

a.

All four roots are on the imaginary axis

b.

Two RHP roots and two LHP roots

c.

Four left half plane (LHP) roots

d.

One right half plane (RHP) root, one LHP root and two roots on the imaginary axis.

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