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Test: Design of Control Systems


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20 Questions MCQ Test GATE Electrical Engineering (EE) 2023 Mock Test Series | Test: Design of Control Systems

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Test: Design of Control Systems - Question 1

If stability error for step input and speed of responsebe the criteria for design, the suitable controller will be

Test: Design of Control Systems - Question 2

The term ‘reset control’ refers to

Test: Design of Control Systems - Question 3

The transfer function represent a

Test: Design of Control Systems - Question 4

A lag compensation network
(a) increases the gain of the original network without affecting stability.
(b) reduces the steady state error.
(c) reduces the speed of response
(d) permits the increase of gain of phase margin is acceptable.
In the above statements, which are correct

Test: Design of Control Systems - Question 5

Phase lag controller:

Detailed Solution for Test: Design of Control Systems - Question 5

Phase lag controller is the integral controller that creates the phase lag and does not affect the value of the damping factor and that tries to reduce the steady state error.

Test: Design of Control Systems - Question 6

Consider the List I and List II

The correct match is

Test: Design of Control Systems - Question 7

A control system in which the control action is somehow dependent on the output is known as

Test: Design of Control Systems - Question 8

The transfer function of a compensating network is of form (1 + αTs)/(1 + Ts). If this is a phase–Lag network, the value of α  should be

Test: Design of Control Systems - Question 9

The poll–zero configuration of a phase–lead compensator is given by

Test: Design of Control Systems - Question 10

While designing controller, the advantage of pole–zero cancellation is

Test: Design of Control Systems - Question 11

A proportional controller leads to

Test: Design of Control Systems - Question 12

The transfer function of a phase compensator is given by (1 + αTs) /(1 + Ts) where α > 1 and T >  0. The maximum phase shift provided by a such compensator is

Test: Design of Control Systems - Question 13

For an electrically heated temperature controlled liquid heater, the best controller is

Test: Design of Control Systems - Question 14

When phase-lag compensation is used in a system, gain crossover frequency, band width and undamped frequency are respectively :

Test: Design of Control Systems - Question 15

A process with open–loop model

is controlled by a PID controller. For this purpose
(A) the derivative mode improves transient performance
(B) the derivative mode improves steady state performance
(C) the integral mode improves transient performance
(D) the integral mode improves steady state performance.
The correct statements are

Test: Design of Control Systems - Question 16

A lead compensating network
(a) improves response time
(b) stabilizes the system with low phase margin
(c) enables moderate increase in gain without affecting stability.
(d) increases resonant frequency
In the above statements, correct are

Test: Design of Control Systems - Question 17

A Lag network for compensation normally consists of

Test: Design of Control Systems - Question 18

The pole–zero plot given in fig. is that of a

Test: Design of Control Systems - Question 19

The correct sequence of steps needed to improve system stability is

Test: Design of Control Systems - Question 20

In a derivative error compensation

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