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Control Systems

Control Systems
Find the Laplace transform for sinωt?

 s/(s²+ω²)
 1/s²
 ω/(s²+ω²)
 1/s

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Control Systems
A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?

 2
 -1
 1
 -2

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Control Systems
A controller transfer function is given by . What is its nature and parameter?

 lead compensator, α = 0.1
 lag compensator, β = 2
 lag compensator, β = 10
 lead compensator, α = 0.2

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

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

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Control Systems
The closed loop transfer function of a system is 25/(s² + 25). The settling time of the system is

 5 sec
 25 sec
 1 sec
 ∞ sec

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

 Any of the above.
 RC.
 LC.
 RL.

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