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Control Systems

Control Systems
The unit step error coefficient of a system with unity feedback is

 0.
 1/6.
 infinity.
 1.

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Control Systems
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

 infinite
 zero
 a value between -1 and +1
 finite constant

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Control Systems
What is the order of a closed loop control system for a plant with a transfer function equal to G(s) = k/s²(1+Ts) and with unity feedback

 0
 1
 2
 3

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

 ω = K2 rad/sec.
 ω = √K rad/sec.
 ω = 0 rad/sec.
 ω = K rad/sec.

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Control Systems
Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ?

 3.
 0.
 1.
 2.

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Control Systems
What will be the type of the system, if the steady state performance of control system yields a non zero finite value of the velocity error constant?

 type - 0
 type - 2
 type - 1
 type - 3

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