Question 1

A linear time invariant system is stable if :

Accepted Answer

A) system in excited by the bounded input, the output is also bounded 
B) in the absence of input output tends zero 
C) both a and b 
D) system in excited by the bounded input, the output is not bounded 
A) system in excited by the bounded input, the output is also bounded 
B) in the absence of input output tends zero 
C) both a and b 
D) system in excited by the bounded input, the output is not bounded C

Question 2

Open loop transfer function of a system having one zero with a positive real value is called.

Accepted Answer

A) zero phase function 
B) negative phase function 
C) positive phase function 
D) non-minimum phase function 
A) zero phase function 
B) negative phase function 
C) positive phase function 
D) non-minimum phase function D

Question 3

The transformation technique in which there is one to one mapping from s-domain to z-domain is

Accepted Answer

A) approximation of derivatives 
B) impulse invariance method 
C) bilinear transformation method 
D) backward difference for the derivative 
A) approximation of derivatives 
B) impulse invariance method 
C) bilinear transformation method 
D) backward difference for the derivative C

Question 4

For relative stability of the system which of the following is sufficient?

Accepted Answer

A) gain margin 
B) phase margin 
C) both a and b 
D) magnitude 
A) gain margin 
B) phase margin 
C) both a and b 
D) magnitude

Question 5

In the cascaded form of realisation, the polynomials are factored into

Accepted Answer

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 
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

Question 6

Linear mathematical model applies to :

Accepted Answer

A) linear systems 
B) stable systems 
C) unstable systems 
D) all of the mentioned 
A) linear systems 
B) stable systems 
C) unstable systems 
D) all of the mentioned

Question 7

Stability of a system implies that :

Accepted Answer

A) small changes in the system input does not result in large change in system output 
B) small changes in the system parameters does not result in large change in system output 
C) small changes in the initial conditions does not result in large change in system output 
D) small changes in the initial conditions result in large change in system output 
A) small changes in the system input does not result in large change in system output 
B) small changes in the system parameters does not result in large change in system output 
C) small changes in the initial conditions does not result in large change in system output 
D) small changes in the initial conditions result in large change in system output

Question 8

Asymptotic stability is concerned with:

Accepted Answer

A) a system under influence of input 
B) a system not under influence of input 
C) a system under influence of output 
D) a system not under influence of ou 
A) a system under influence of input 
B) a system not under influence of input 
C) a system under influence of output 
D) a system not under influence of ou

Question 9

In cascade form of realization, how many bits should be used to represent the FIR filter coefficients in order to avoid the quantization effect on filter coefficients?

Accepted Answer

A) 5 to 10 
B) 12 to 14 
C) 20 to 24 
D) 28 to 40 
A) 5 to 10 
B) 12 to 14 
C) 20 to 24 
D) 28 to 40

Question 10

If the impulse response in absolutely integrable then the system is :

Accepted Answer

A) absolutely stable 
B) unstable 
C) linear 
D) stable 
A) absolutely stable 
B) unstable 
C) linear 
D) stable

Question 11

Difference equation model results in:

Accepted Answer

A) sampled-data systems 
B) numerical analysis of continuous time systems 
C) continuous time feedback systems 
D) both a and b 
A) sampled-data systems 
B) numerical analysis of continuous time systems 
C) continuous time feedback systems 
D) both a and b

Question 12

Conventional control theory is applicable to ______ systems

Accepted Answer

A) siso 
B) mimo 
C) time varying 
D) non-linear 
A) siso 
B) mimo 
C) time varying 
D) non-linear

Question 13

If a system is given unbounded input then the system is:

Accepted Answer

A) stable 
B) unstable 
C) not defined 
D) linear 
A) stable 
B) unstable 
C) not defined 
D) linear

Question 14

The transfer function of any stable system which has no zeros or poles in the right half of the s-plane is said to be:

Accepted Answer

A) minimum phase transfer function 
B) non-minimum phase transfer function 
C) minimum phase frequency response function 
D) minimum gain transfer function 
A) minimum phase transfer function 
B) non-minimum phase transfer function 
C) minimum phase frequency response function 
D) minimum gain transfer function

Question 15

Parallel form of realisation is done in

Accepted Answer

A) high speed filtering applications 
B) low speed filtering applications 
C) both a and b 
D) none of the above 
A) high speed filtering applications 
B) low speed filtering applications 
C) both a and b 
D) none of the above

Question 16

The use of sampled data control system are:

Accepted Answer

A) for using analog components as the part of the control loop 
B) for time division of control components 
C) whenever a transmission channel forms a part of closed loop 
D) none of the mentioned 
A) for using analog components as the part of the control loop 
B) for time division of control components 
C) whenever a transmission channel forms a part of closed loop 
D) none of the mentioned

Question 17

With feedback _____ reduces.

Accepted Answer

A) system stability 
B) system gain 
C) system stability and gain 
D) damping 
A) system stability 
B) system gain 
C) system stability and gain 
D) damping

Question 18

Consider the function F (s)= 5/s(s^2+3s+2), the initial value of f(t) is:

Accepted Answer

A) 5 
B) 5/2 
C) 5/3 
D) 0 
A) 5 
B) 5/2 
C) 5/3 
D) 0

Question 19

If root of the characteristic equation has positive real part the system is :

Accepted Answer

A) stable 
B) unstable 
C) marginally stable 
D) linear 
A) stable 
B) unstable 
C) marginally stable 
D) linear

Question 20

The system which works on the initial condition without any input applied to it is called as :

Accepted Answer

A) homogeneous system 
B) non homogeneous system 
C) linear system 
D) non linear system 
A) homogeneous system 
B) non homogeneous system 
C) linear system 
D) non linear system

A linear time invariant system is stable if :

Open loop transfer function of a system having one zero with a positive real value is called.

The transformation technique in which there is one to one mapping from s-domain to z-domain is

For relative stability of the system which of the following is sufficient?

In the cascaded form of realisation, the polynomials are factored into

Linear mathematical model applies to :

Stability of a system implies that :

Asymptotic stability is concerned with:

In cascade form of realization, how many bits should be used to represent the FIR filter coefficients in order to avoid the quantization effect on filter coefficients?

If the impulse response in absolutely integrable then the system is :

Difference equation model results in:

Conventional control theory is applicable to ______ systems

If a system is given unbounded input then the system is:

The transfer function of any stable system which has no zeros or poles in the right half of the s-plane is said to be:

Parallel form of realisation is done in

The use of sampled data control system are:

With feedback _____ reduces.

Consider the function F (s)= 5/s(s^2+3s+2), the initial value of f(t) is:

If root of the characteristic equation has positive real part the system is :

The system which works on the initial condition without any input applied to it is called as :

Control Systems, Sampling, and Transform Techniques

State Space Analysis and Eigen Values

Control System

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Exam 2: Stability and Realization of Linear Systems With Feedback and Sampling

A linear time invariant system is stable if :

Open loop transfer function of a system having one zero with a positive real value is called.

The transformation technique in which there is one to one mapping from s-domain to z-domain is

For relative stability of the system which of the following is sufficient?

In the cascaded form of realisation, the polynomials are factored into

Linear mathematical model applies to :

Stability of a system implies that :

Asymptotic stability is concerned with:

In cascade form of realization, how many bits should be used to represent the FIR filter coefficients in order to avoid the quantization effect on filter coefficients?

If the impulse response in absolutely integrable then the system is :

Difference equation model results in:

Conventional control theory is applicable to ______ systems

If a system is given unbounded input then the system is:

The transfer function of any stable system which has no zeros or poles in the right half of the s-plane is said to be:

Parallel form of realisation is done in

The use of sampled data control system are:

With feedback _____ reduces.

Consider the function F (s)= 5/s(s^2+3s+2), the initial value of f(t) is:

If root of the characteristic equation has positive real part the system is :

The system which works on the initial condition without any input applied to it is called as :

Control Systems, Sampling, and Transform Techniques

State Space Analysis and Eigen Values

Control System

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