CONTROL SYSTEMS QUIZ

The optimum values of damping ratio is --------------

0.9 to 1.1

0.3 to 5

0.3 to 0.7

0 to 2

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A second order system has peak over shoot = 50% and period of oscillations 0.2 seconds. Find the resonant frequency?

30.63 rad/s

31.41 rad/s

32.16 rad/s

29.74 ra/s

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Two identical first order systems have been cascaded non interactively. The unit step response of the systems will be

un damped

critical damped

under damped

Over damped

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A linear time invariant system has an impulse response e2t for t > 0 . If initial condition are 0 and input is e3t, the output for t > 0 is

e2t + e3t.

e2t - e3t.

e5t.

e3t - e2t.

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Which of the following statement is/are true statements?

The steady state analysis depends on type of the system

All of these

Type of the system is obtained from open loop transfer function

Transient state analysis depends on order of the system

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The low frequency and high frequency asymptotes of Bode magnitude plot are respectively -60dB/decade and -40dB/decade. What is the type of the system?

TYPE II

TYPE III

TYPE I

TYPE 0

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A second order under damped system has damping ratio of 0.3. Find the phase margin of the system?

20°

3°

60°

30°

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In the cauer-2 form of LC network---------is series element and --------is shunt element respectively?

C and L

L and C

C and C

L and L

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Which of the following controller is also known as anticipatory controller?

integral controller

derivative controller

both 1 and 3

proportional controller

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At which frequency does the Bode magnitude plots for the functions K/S2 have gain crossover frequency

ω = √K rad/sec.

ω = K2 rad/sec.

ω = K rad/sec.

ω = 0 rad/sec.

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