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Control Systems

Control Systems
Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e-at) is equal to

 F(s)/(s+a)
 eas*F(s)
 F(s+a)
 e-as*F(s)

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

 0
 infinity
 1
 any of the above

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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

 RC.
 RL.
 LC.
 Any of the above.

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Control Systems
Angle of asymptotes for complimentary root locus is

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

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Control Systems
The error of a system to a ramp input is 1/5, if the type of the system is decreased by one, then the error of unit step input is

 6/5
 5
 0.167
 0.2

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Control Systems
A transfer function has its zero in the right half of the s-plane. The function

 is positive real
 is non-minimum phase
 is minimum phase
 will give stable impulse response

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