CONTROL SYSTEMS QUIZ

What is the full form of SPICE ?

Simulated program with integrated circuit analysis.

Stimulated program with integrated circuit arrangement.

None of these.

Sequential program with integrated circuit analysis.

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Which of the following is the analogous quantity for mass element in force-voltage analogy?

Resistance.

Capacitance.

Inductance.

All of these

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For a unity feedback control system open loop transfer function then acceleration error constant is

infinity.

0.

20.

50.

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Consider a point S = -3 + j4 in the s-plane. Then for a system with the open loop transfer function ?

either 1 or 2

S is on root locus

None of these

S is not on root locus

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A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is

90°

-90°

180°

-180°

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When deriving the transfer function of linear element

initial conditions are assumed to be zero and the element is assumed to be not loaded.

initial conditions are taken into account but the element is assumed to be not loaded.

both initial conditions and loading are taken into account.

initial conditions are assumed to be zero but loading is taken into account.

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Differentiation of parabolic response is a -------------- response?

ramp

impulse

parabolic

step

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Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to

zero

a value between -1 and +1

infinite

finite constant

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Which one of the following is the response y(t) of a casual LTI system described by H(s) = (s+1)/(s²+2s+2) for a given input x(t) = e-t u(t)?

e-t cost*u(t)

e-t cott*u(t)

e-t tant*u(t)

e-t sint*u(t)

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The magnitude of a transfer function G(jω)H(jω) at gain cross over frequency is

0

any of the above

1

infinity

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