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Control Systems

Control Systems
The impulse response of a linear system is e-t, (t > 0). The corresponding transfer function is

 s/(s+1)
 1/(s+1)
 1/s(s+1)
 1/s

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Control Systems
A control system has open loop transfer function . Break away point is lies between

 0 and -4.
 any of the above.
 0 and 4.
 -4 and -6.

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Control Systems
Given a unity feedback system with G(s) = k/s(s+4), the value of k for damping ratio of 0.5 is

 1
 16
 64
 4

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Control Systems
The impulse response of the system described by the differential equation will be

 (1/3) × (1-e-3t).
 1/3.
 e-3t u(t).
 e6t.

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Control Systems
In force-current analogy, electrical analogous quantity for displacement (x) is

 capacitance.
 inductance.
 flux.
 voltage.

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Control Systems
When the system gain is doubled the gain margin becomes?

 Remains unaffected
None of these
 1/2 times
 2 times

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