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Control Systems

Control Systems
Angle of asymptotes for complimentary root locus is

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

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Control Systems
Which one of the following is the response y(t) of a casual LTI system described by H(s) = (s+1)/(s²+2s+2) for a given input x(t) = e-t u(t)?

 e-t cost*u(t)
 e-t cott*u(t)
 e-t sint*u(t)
 e-t tant*u(t)

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Control Systems
The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become

 zero
 infinite
 0.707
 unity

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Control Systems
With regard to filtering property, the lead compensator is

 low pass filter
 bandpass filter
 high pass filter
 band reject filter

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Control Systems
Advantages of open loop control system is/are

 accurate.
 simple and economical.
 reliable.
All of these

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Control Systems
The unit step response of the system is 1 - e-t(1+t). Which is the system?

 oscillatory
 unstable
 critically stable
 stable

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