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Control Systems

Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?

 0
 4
 2
 1

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

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

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

 inductance.
 voltage.
 flux.
 capacitance.

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Control Systems
The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its open loop transfer function is

 (2s+1)/s²
 (2s+1)/(s+1)²
 (2s+2)/s²
 (2s+2)/(s+1)²

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Control Systems
A unity feed back system has forward transfer function The range of k for the system to be stable is

 0 < k < 39.
 0 < k < 390.
 0 < k < 3900.
None of these

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Control Systems
First Foster form of a LC network represents which element in the beginning?

 Inductor.
 Both A and B.
 Resistor.
 Capacitor.

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