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Control Systems

Control Systems
Type and order of transfer function G (s) = K / {s(s + 2)}

 1, 2.
 0, 2.
 1, 1.
 2, 1.

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Control Systems
The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become

 infinite
 zero
 unity
 0.707

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Control Systems
Transfer function of zero order hold response is

 (1 / s) × (1 - est).
 (1 / s) × (1 - e-st).
 (s) × (1 - est).
 (1 / s) × e-st.

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Control Systems
The initial slope of Bode plot for a transfer function having no poles at the origin is

 +10dB/decade.
 -10dB/decade.
 -20dB/decade.
 0 dB/decade

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Control Systems
Which of the following is the correct expression for the transfer function of an electrical RC phase lag compensating network?

 RCS/(1+RCS)
 C/(1+RCS)
 RC/(1+RCS)
 1/(1+RCS)

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

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

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