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Control Systems

Control Systems
Based on relation between the arm impedances the filters can be categorized into how many types?

 4.
 Not classified at all.
  2.
 3.

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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+2)/s²
 (2s+2)/(s+1)²
 (2s+1)/(s+1)²

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Control Systems
The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is

 30°
 60°
 45°
 80°

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Control Systems
A box which tells the effect of inputs on control sub system is known as

 Decision box.
 Data Box.
 Logical box.
 State box.

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Control Systems
Negative feedback in a closed loop control system

 reduces sensitivity to parameter variation.
All of these
 reduces gain.
 improves disturbance rejection.

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Control Systems
By using which of the following elements, mechanical translational systems are obtained?

All of these
 mass element
 dash-pot
 spring element

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