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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 the gain k is increased to infinity, then damping ratio will tend to become
zero
infinite
0.707
unity
zero
infinite
0.707
unity
Answer
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Related Question
Control Systems
Sparking between the contacts can be reduced by inserting
a capacitor in parallel with the contacts.
a reactor in the line.
a resistor in the line.
a capacitor in series with the contacts.
a capacitor in parallel with the contacts.
a reactor in the line.
a resistor in the line.
a capacitor in series with the contacts.
Answer
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Control Systems
A control system has open loop transfer function . Break away point is lies between
0 and 4.
any of the above.
0 and -4.
-4 and -6.
0 and 4.
any of the above.
0 and -4.
-4 and -6.
Answer
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Control Systems
Which one of the following is the response y(t) of a casual LTI system described by H(s) = (s+1)/(s²+2s+2) for a given input x(t) = e-t u(t)?
e-t cott*u(t)
e-t cost*u(t)
e-t sint*u(t)
e-t tant*u(t)
e-t cott*u(t)
e-t cost*u(t)
e-t sint*u(t)
e-t tant*u(t)
Answer
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Control Systems
Time response for a second order system depends on value of ξ. If ξ = 1 then the system is called as
critically damped system.
over damped system.
undamped system.
under damped system.
critically damped system.
over damped system.
undamped system.
under damped system.
Answer
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Control Systems
Which of the following is the analogous quantity for mass element in force-voltage analogy?
Capacitance.
Inductance.
Resistance.
All of these
Capacitance.
Inductance.
Resistance.
All of these
Answer
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