1
GATE EE 2011
MCQ (Single Correct Answer)
+2
-0.6
The open loop transfer function $$G(s)$$ of a unity feedback control system is given as, $$G\left( s \right) = {{k\left( {s + {2 \over 3}} \right)} \over {{s^2}\left( {s + 2} \right)}}.\,\,$$ From the root locus, it can be inferred that when $$k$$ tends to positive infinity
A
three roots with nearly equal real parts exist on the left half of the $$s$$-plane
B
one real root is found on the right half of the $$s$$-plane
C
the root loci cross the $$j\omega $$ axis for a finite value of $$k;k \ne 0$$
D
three real roots are found on the right half of the $$s$$-plane
2
GATE EE 2011
MCQ (Single Correct Answer)
+1
-0.3
An open loop system represented by the transfer function $$G\left( s \right) = {{\left( {s - 1} \right)} \over {\left( {s + 2} \right)\left( {s + 3} \right)}}$$ is
A
Stable and of the minimum phase type
B
Stable and of the non - minimum phase type
C
Unstable and of the minimum phase type
D
Unstable and of non-minimum phase type
3
GATE EE 2011
MCQ (Single Correct Answer)
+2
-0.6
A two-loop position control system is shown below. GATE EE 2011 Control Systems - Time Response Analysis Question 17 English
The gain $$k$$ of the Tacho-generator influences mainly the
A
Peak overshoot
B
Natural frequency of oscillation
C
Phase shift of the closed loop transfer function at very low frequencies $$\left( {\omega \to \infty } \right)$$
D
Phase shift of the closed loop transfer function at very low frequencies $$\left( {\omega \to \infty } \right)$$
4
GATE EE 2011
MCQ (Single Correct Answer)
+1
-0.3
The steady state error of a unity feedback linear system for a unit step input is $$0.1.$$ The steady state error of the same system, for a pulse input $$r(t)$$ having a magnitude of $$10$$ and a duration of one second, as shown in the figure is GATE EE 2011 Control Systems - Time Response Analysis Question 31 English
A
$$0$$
B
$$0.1$$
C
$$1$$
D
$$10$$