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Control Systems
The value of 'a' in to give phase margin = 45o will be
0.9.
1.18.
0.707.
1.414.
0.9.
1.18.
0.707.
1.414.
Answer
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Related Question
Control Systems
Two identical first order systems have been cascaded non interactively. The unit step response of the systems will be
under damped
critical damped
un damped
Over damped
under damped
critical damped
un damped
Over damped
Answer
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Control Systems
A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant?
5 sec
6 sec
2 sec
4 sec
5 sec
6 sec
2 sec
4 sec
Answer
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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
0.707
unity
zero
infinite
0.707
unity
zero
Answer
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Control Systems
Which of the following is/are the example of actuator?
Electric motor
Hydraulic motor
All
Pneumatic motor
Electric motor
Hydraulic motor
All
Pneumatic motor
Answer
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Control Systems
The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its open loop transfer function is
(2s+2)/s²
(2s+1)/(s+1)²
(2s+2)/(s+1)²
(2s+1)/s²
(2s+2)/s²
(2s+1)/(s+1)²
(2s+2)/(s+1)²
(2s+1)/s²
Answer
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