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Control Systems

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

 parabolic
 impulse
 step
 ramp

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Control Systems
Find the angles of asymptotes of the open loop transfer function G(s) = k(s + 1)/((s(s+2)(s+4)?

 90°,270°
 90°,180°
 0°, 180°
 60°,240°

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Control Systems
Consider a network function H(s) = 2(s+3)/{(s+2)(s+4)}. What is the steady state response due to step input?

 4/3
 1
 1/2
 3/4

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Control Systems
The initial slope of Bode plot for a transfer function having no poles at the origin is

 -20dB/decade.
 +10dB/decade.
 -10dB/decade.
 0 dB/decade

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Control Systems
Lowest critical frequency is due to zero and it may be present at the origin or nearer to the origin, then the type of network is

 RL Circuit.
 LC circuit.
 RC circuit.
 RLC circuit.

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Control Systems
The input-output relationship of a linear time invariant continuous time system is given by r(t) = d²c(t)/dt² + 3 dc(t)/dt + 2 c(t) Where r(t) and c(t) are input and output respectively. What is the transfer function of the system equal to?

 2/(s² + s + 2)
 1/(s² + s + 2)
 1/(s² + 3s + 2)
 2/(s² + 3s + 2)

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