Gate 2019: Control System Quiz 4 (App update required to attempt this test)

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Question 1

For a feedback control system of type-2, the steady state error for a ramp input is:

• AInfinite
• Bconstant
• CZero
• DIntermediate

Question 2

An open loop transfer function of a unity feedback system is given by G(s) = . If gain k increases to infinity, then the damping ratio will tend to become

• A0
• B
• C1
• D

Question 3

A unity feedback control system has forward path transfer function as

The rise time will be ____ sec.

Answer

Question 4

For the given system

Which of the following is true?

• AOverdamped and settling time for 2% tolerance is 0.285 sec
• BUnderdamped and settling time for 2% tolerance is 0.285 sec
• CCritically damped and settling time for 2% tolerance is 0.571 sec
• DUnderdamped and settling time for 2% tolerance is 0.571 sec

Question 5

The frequency response of an underdamped second order system is shown below.

The appropriate damping ratio is ______.

• A0.234
• B0.404
• C2.234
• D2.404

Question 6

The second order system is described by the equation

The time period of oscillations of the system is

• Azero
• B
• C
• D

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