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Control Systems

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 system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the initial value?

 3/9
 3/5
 1/4
 0

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Control Systems
The characteristic equation has the following roots for over damped stable system?

 -2±j4
 -2,2
 -2,-4
 -2,-2

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Control Systems
At which frequency does the Bode magnitude plots for the functions K/S2 have gain crossover frequency

 ω = K rad/sec.
 ω = K2 rad/sec.
 ω = √K rad/sec.
 ω = 0 rad/sec.

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Control Systems
In the cauer-2 form of LC network---------is series element and --------is shunt element respectively?

 C and L
 C and C
 L and C
 L and L

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Control Systems
The type of a control system is obtained from -------------- transfer function?

 open loop
 both open loop and closed loop
 none of above.
 closed loop

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