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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

 1/s(s+1)
 s/(s+1)
 1/s
 1/(s+1)

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Control Systems
Which system is also known as automatic control system?

 Closed loop control system
 Nether 1 nor 2
 Open loop control system
 Either 1 or 2

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

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

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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

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

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Control Systems
Open loop transfer function,

 band reject filter.
 all pass filter.
None of these
 band stop filter.

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Control Systems
The poles of the second order system are at -3 ± j4. The damping ratio of the system is

 3/5
 3/4
 4/5
 3/7

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