Top 80+ Solved Control System 2 MCQ Questions Answer
Q. Jury’s test determines whether the roots of a polynomial lie:
a. close to unit circle
b. within the unit circle
c. outside the unit circle
d. on the unit circle
Q. The transformation technique in which there is one to one mapping from s-domain to z-domain is
a. approximation of derivatives
b. impulse invariance method
c. bilinear transformation method
d. backward difference for the derivative
Q. Parallel form of realisation is done in
a. high speed filtering applications
b. low speed filtering applications
c. both a and b
d. none of the above
Q. In cascade form of realization, how many bits should be used to represent the FIR filter coefficients in order to avoid the quantization effect onfilter coefficients?
a. 5 to 10
b. 12 to 14
c. 20 to 24
d. 28 to 40
Q. How is the sampling rate conversion achieved by factor I/D?
a. by increase in the sampling rate with (i)
b. by filtering the sequence to remove unwanted images of spectra of original signal
c. by decimation of filtered signal with factor d
d. all of above
Q. In the cascaded form of realisation, the polynomials are factored into
a. product of 1st-order and 2nd-order polynomials
b. product of 2nd-order and 3rd-order polynomials
c. sum of 1st-order and 2nd-order polynomials
d. sum of 2nd-order and 3rd-order polynomials
Q. Open loop transfer function of a system having one zero with a positive real value is called.
a. zero phase function
b. negative phase function
c. positive phase function
d. non-minimum phase function
Q. The values of the characteristic equation is given by:
a. eigen values
b. state matrix
c. eigen vector
d. none of the mentioned
Q. The state variable representation is preferred
a. to increase the sensitivity to the plant parameter variations
b. to reduce the sensitivity to the plant parameter variations
c. to make a plant simple and to control the transient response
d. none of the above
Q. With the knowledge of state space representation the transfer function of the system
a. can be determined partly
b. can be determined completely
c. cannot be determined
d. none of the above
Q. Which among the following are the interconnected units of state diagram representation?
a. scalars
b. adders
c. integrators
d. all of the above
Q. Which among the following controls the speed of D.C. motor?
a. galvanometer
b. gauss meter
c. potentiometer
d. tachometer
Q. State model representation is possible using _________
a. . physical variables
b. . phase variables
c. canonical state variables
d. all of the above
Q. Which among the following constitute the state model of a system in addition to state equations?
a. . input equations
b. . output equations
c. state trajectory
d. state vector