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Control Systems

Control Systems
Force balancing equation for elastic element (K) is (where, x = displacement)

 K dx/dt
 K *x
None of these
 K d2x/dt2

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

 K
 KS
 K/S
 KS2

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Control Systems
The system is initially critical damped. If the gain of the system is doubled, then it will exhibit

 under damped characteristics.
 undamped characteristics.
 over damped characteristics.
 critical damped characteristics.

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Control Systems
Poles and zeros are arranged alternatively on negative real axis, then type of network is/are

 RL network.
 Both 2 and 3.
 RC network.
 LC network.

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Control Systems
In frequency response analysis of second order system, the error at corner frequency is

 20 log2ξ
 10 logξ
 -10 logξ
 -20 log2ξ

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Control Systems
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

 2
 0
 1
 3

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