2014
1. The forward path transfer
function of a unity feedback system is given by
The value of K which
will place boht the poles of the closed loop system at the same
location is
_________________
2. Consider the feedback
system shown in the figure. The Nyquist plot of G(s) is also shown.
Which of the following conclusions is correct?
a) G(s) is an all pass
filter
b) G(s) is a strictly
proper transfer function
c) G(s) is a stable and
minimum phase transfer function
d) The closed loop system
is unstable for sufficiently large and positive k
3. In the circuit shown, the
value of capacitor C (in mF) needed to have critically damped
response i(t) is ______________________
4. A system is described by
the following differential equation, where u(t) is the input to the
system and y(t) is the output of the system.
When y(0) = 1 and u(t) is a
unit step function, y(t) is
5. consider the state space
model of a system, as given below.
The given system is
a) controllable and
observable
b) uncontrollable and
observable
c) uncontrollable and
unobservable
d) controllable and
unobservable
6. The phase margin in
degrees of G(s) =
calculated
using the asymptotic Bode plot is ____________
calculated
using the asymptotic Bode plot is ____________
2014
1. The forward path transfer
function of a unity feedback system is given by
The value of K which
will place boht the poles of the closed loop system at the same
location is
_________________
2. Consider the feedback
system shown in the figure. The Nyquist plot of G(s) is also shown.
Which of the following conclusions is correct?
a) G(s) is an all pass
filter
b) G(s) is a strictly
proper transfer function
c) G(s) is a stable and
minimum phase transfer function
d) The closed loop system
is unstable for sufficiently large and positive k
3. In the circuit shown, the
value of capacitor C (in mF) needed to have critically damped
response i(t) is ______________________
4. A system is described by
the following differential equation, where u(t) is the input to the
system and y(t) is the output of the system.
When y(0) = 1 and u(t) is a
unit step function, y(t) is
5. consider the state space
model of a system, as given below.
The given system is
a) controllable and
observable
b) uncontrollable and
observable
c) uncontrollable and
unobservable
d) controllable and
unobservable
6. The phase margin in
degrees of G(s) =
calculated
using the asymptotic Bode plot is ____________
calculated
using the asymptotic Bode plot is ____________
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