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Control Systems

Control Systems
The Laplace transform of a transportation lag of 5 seconds is

 e-5s.
 1/(s+5).
 e5s.
 1/(s-5).

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Control Systems
The transfer function for tachometer E(S)/θ(S) is

 KS2
 K
 KS
 K/S

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Control Systems
The device necessarily used for automatic temperature control in a furnace is

 Auto-transformer.
 Thermostat.
 Any of above.
 Thermocouple.

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Control Systems
The open loop transfer function of a unity feedback control system is G(s) = 1/((s(s+0.1s)(s+1)). The value of damping factor for which the resonant peek is equal to 1.4 is

 0.953
 0.707
 0.263
 0.386

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

 L and L
 C and L
 C and C
 L and C

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Control Systems
The transfer function of a plant is T(s) = 5/(s+5)(s² + 5 + 1). The second order approximation of T(s) using dominant pole concept is

 1/(s+1)(s+5)
 5/(s+1)(s+5)
 1/(s² + 5 + 1)
 5/(s² + 5 + 1)

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