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Control Systems

Control Systems
The closed loop transfer function of a unity feedback control system is 9/(s² + 3s + 9), then the type of the system is

 3
 0
 1
 2

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Control Systems
Transfer function of zero order hold response is

 (s) × (1 - est).
 (1 / s) × e-st.
 (1 / s) × (1 - e-st).
 (1 / s) × (1 - est).

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Control Systems
Force balancing equation of a mass element is (where, x = displacement)

 any of the above
 M *x
 M dx/dt
 M d2x/dt2

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Control Systems
The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is

 6
 2
 4
 8

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Control Systems
The open loop transfer function of non unity negative feedback system is , then the number of root locus branches equal to

 0.
 2.
 1.
 3.

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Control Systems
If the bandwidth of the system is very large, the system response is

 faster
 independent of bandwidth
 slower
None of these

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