Rajasthan Polytechnic Third Year Paper 2016 – Control Theory

Rajasthan Polytechnic Third Year Paper 2016 – Control Theory

Error constants of system are measure of
(a) Steady state response
(b) Transient state error
(c) Relative stability
(d) Steady state & transient error

Which of the following is not a test signal ?
(a) Step signal
(b) Ramp signal
(c) Parabolic signal
(d) Speed signal

Velocity error constant of a system is measured when the input to the system is
(a) Unit step function
(b) Unit ramp function
(c) Unit parabolic function
(d) Unit impulse function

Where are the location of roots of any characteristic equation for stability of system?
(a) All roots are present on negative side of s-plane
(b) All roots are present on positive side of s-plane
(c) All roots are present on jw-axis of S-Plane
(d) All roots are present on origin of s-plane

A system has poles at -1 and -5 and zeros at 01 and -2, the system is
(a) Stable
(b) Unstable
(c) Limitedly stable
(d) Highly stable

In any Bode-plot the system is stable only when
(a) Positive gain margin & Negative phase margin
(b) Negative gain margin & positive phase margin
(c) Positive gain margin & Positive phase margin
(d) Negative gain margin & Negative phase margin

The stability of any system can be find out from
(a) Location of poles
(b) Location of zeros
(c) Location of both as above
(d) None of the above

Most of the feedback control systems are designed for damping ratio in the range of
(a) 0.707 to 1.0
(b) 0.4 to 0.7
(c) 0 to 0.4
(d) 0.1 to 0.9

In root locus the locus of roots moves from which place to which place ?
(a) From origin to infinity
(b) From zeros to poles
(c) From poles to zeros
(d) From poles to origin

Routh’s method identifies the
(a) Stability of system
(b) Number of poles
(c) Location of poles
(d) All of above