A unity feedback system has open loop transfer function $$G(s).$$ The steady-state error is zero for
A
step input and type $$–1$$ $$G(s)$$
B
ramp input and type $$–1$$ $$G(s)$$
C
step input and type $$-$$ $$G(s)$$
D
ramp input and type $$-$$ $$0$$ $$G(s)$$
2
GATE EE 1998
MCQ (Single Correct Answer)
The output of a linear time invariant control system is $$c(t)$$ for a certain input $$r(t).$$ If $$r(t)$$ is modified by passing it through a block whose transfer function is $${e^{ - s}}$$ and then applied to the system, the modified output of the system would be