Objective questions on Control Theory

M.Sc Electronics Semester II Exam Oct/Nov 2019 Shivaji University Kolhapur

In case of control system the input and output are always in _____
(a) Laplace domain
(b) Fourier series
(c) Z-transofrms
(d) time domain

If locations of closed loop two poles of the the transfer function are on the right half of the s-plane, then the system is said to be ____
(a) Absolutely stable
(b) unstable
(c) marginally stable
(d) None of these

Order of characteristic equation obtained from transfer function gives ____
(a) Number of poles
(b) Number of zeros
(c) Both ples and zeros
(d) imaginary roots only

The time that the system output takes to reach from 10% to 90% of its final value is known as __ time
(a) delay time
(b) settling time
(c) Peak time
(d) Rise time

If three gain blocks having gains G1,G2 and G3 are connected in series, then resulting gain of the system is _____
(a) G1/(G2+G3)
(b) G1xG2xG3
(c) G1+G2+G3
(d) G1/G2/G3

Transfer function is the ratio of ______
(a) Laplace transform of output to the laplace transform of input
(b) Output to the input in time domain
(c) Laplace transform of output to the time
(d) Laplace transform of input to the time

A circuit consisting RC series and output is taken across capacitor is an example of _____ control system.
(a) Type-1
(b) First Order
(c) Type-2
(d) Second Order

Which of the following input is called velocity vector?
(a) ramp
(b) parabolic
(c) step
(d) impulse

The Bode plots are the graph of ____
(a) magnitude against log of frequency
(b) log of magnitude against frequency
(c) log of magnitude in dB and phase angle against log of frequency
(d) mangitude against phase angle

Which of the following controller shows hysteresis as a one of the features?
(a) Discontinuous mode
(b) PI mode
(c) PD mode
(d) PID mode