CONTROL SYSTEMS QUIZ

Electrical analogous quantity for spring element (K) in force-voltage analogy is

L

R

1/C

C

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YOUR ANSWER : ?

Which of the following statement is/are true statements?

The steady state analysis depends on type of the system

Transient state analysis depends on order of the system

All of these

Type of the system is obtained from open loop transfer function

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Find the order of a system given by

5.

3.

4.

2.

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In signal flow graph output node is node having only------------

None of these

both 1 and 2

incoming branches

outgoing branches

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Angle of asymptotes for complimentary root locus is

(2q)*180/(P-Z)

(2q+1)*180/(P-Z)

(2q+1)*180/P

(2q)*180/P

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The transfer function of the system described by d²/dt²(y(t)) + 3d/dt(y(t)) + 2y(t) = 5u(t) with u(t) as input and y(t) as output is

s(s²+3s+2)/5

(s²+3s+2)/5

5/s(s²+3s+2)

5/(s²+3s+2)

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The angle condition used for checking whether any point lies on root locus or not is...........

± (2q) 360o.

± (2q + 1) 180o.

± (2q + 1) 360o.

± (2q) 180o.

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A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........?

5

2

1

3

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A proportional plus integral controller

has high sensitivity

increases the stability of the system

both 2 and 3

it increases rise time

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When the input to a system was with drawn at t = 0, its output was found to decrease exponentially from 1000 units to 500 units in 1.386 sec. The time constant of the system is

1.386.

2.000.

0.500.

0.693.

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