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ISRO EC 2018:Control System Booster Quiz 1

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Question 1

If the range of gain K for the stability of a unity feedback system is 0<K150. Then for K=30, the gain margin (GM) of the system is______.

Question 2

The open loop transfer function of a unity feedback system is, G(s) =3/s(s+2). The gain margin (GM) in dB of the system is _____.

Question 3

A unity feedback system has an open loop transfer function as

The steady state error to an input (1 + 4t) is

Question 4

A two-loop position control system is shown below.

The gain k of the Tacho-generator influences mainly the

Question 5

A system with transfer function

is excited by sin (ωt). The steady-state output of the system is zero at

Question 6

What is the effect on the natural frequency (ω_n) and damping factor (δ_n) in the control systems when derivative compensation is used?

Question 7

The feedback control system has the following characteristic equation:

How many asymptotes are there in the root locus of the given system?

Question 8

Figure shows a feedback system where K > 0.

The range of K for which the system is stable will be given by

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May 14ESE & GATE EC