Loading...

Loading, please wait...

Back to Topics

Control Systems
Transfer Function

Practice questions from Transfer Function.

27
Total
0
Attempted
0%
0
Correct
0%
0
Incorrect
0%
Q#1 Transfer Function GATE EC 2025 (Set 1) MCQ +2 marks -0.66 marks

Consider a system represented by the block diagram shown below. Which of the following signal flow graphs represent(s) this system? Choose the correct option(s).

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#2 Transfer Function GATE EC 2023 (Set 1) MCQ +2 marks -0.66 marks

In the following block diagram,  and  are two inputs. The output  is expressed as

.  and  are given by

 and

 and

 and

 and

     

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#3 Transfer Function GATE EC 2021 (Set 1) MCQ +1 mark -0.33 marks

The block diagram of a feedback control system is shown in the figure.

 

The transfer function  of the system is        

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#4 Transfer Function GATE EC 2019 (Set 1) MCQ +2 marks -0.66 marks

The block diagram of a system is illustrated in the figure shown, where  is the input and  is the output. The transfer function  is

\\169.254.160.58\Kreatryx\DATA\Gate 2019\ECE\ECE Solution Digram\45.jpg

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#5 Transfer Function GATE EC 2017 (Set 2) NAT +1 mark -0 marks

For the system shown in the figure, Y (s)/X (s) =

 

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#6 Transfer Function GATE EC 2016 (Set 1) MCQ +1 mark -0.33 marks

The block diagram of a feedback control system is shown in the figure. The overall closed-loop gain G of the system is

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#7 Transfer Function GATE EC 2015 (Set 2) MCQ +1 mark -0.33 marks

For the signal flow graph shown in the figure, the value of   is

 

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#8 Transfer Function GATE EC 2014 (Set 2) MCQ +1 mark -0.33 marks

For the following system,

When  , the transfer function  is

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#9 Transfer Function GATE EC 2014 (Set 3) MCQ +1 mark -0.33 marks

Consider the following block diagram in the figure.

 

The transfer function   is

 

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#10 Transfer Function GATE EC 2013 (Set 1) MCQ +2 marks -0.66 marks

The signal flow graph for a system is given below. The transfer function  for this system is

13.jpg

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#11 Transfer Function GATE EC 2010 (Set 1) MCQ +1 mark -0.33 marks

The transfer function Y(s)/R(s) of the system shown is

0

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#12 Transfer Function GATE EC 2005 (Set 1) MCQ +1 mark -0.33 marks

Despite the presence of negative feedback, control system still have problems of instability because the

Components used have nonlinearities.

Dynamic equations of the subsystems are not known

exactly.

Mathematical analysis involves approximations.

System has large negative phase angle at high frequencies.

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#13 Transfer Function GATE EC 2004 (Set 1) MCQ +2 marks -0.66 marks

For the circuit shown below, the initial conditions are zero. Its transfer function is

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#14 Transfer Function GATE EC 2004 (Set 1) MCQ +2 marks -0.66 marks

Consider the signal flow graph shown in Figure. The gain  is

 

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#15 Transfer Function GATE EC 2003 (Set 1) MCQ +2 marks -0.66 marks

The signal flow graph of a system is shown in figure. The transfer function  of the system is

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#16 Transfer Function GATE EC 2001 (Set 1) MCQ +1 mark -0.33 marks

The equivalent of the block diagram in Figure is given in

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#17 Transfer Function GATE EC 2001 (Set 1) MCQ +2 marks -0.66 marks

An electrical system and its signal-flow graph representations are shown in figures. The values of  and H, respectively are

 ,

 ,

 ,

 ,

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#18 Transfer Function GATE EC 2001 (Set 1) MCQ +2 marks -0.66 marks

The open-loop DC gain of a unity negative feedback system with closed-loop transfer function  is

4

13

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#19 Transfer Function GATE EC 2001 (Set 1) MSQ +2 marks -0 marks

A feedback control system is shown in Figure.

(c) Find the number of all possible combination of non-touching loops taken two at a time.

(d) Determine the transfer function of the system using the signal-flow graph.

Signal flow graph

Total number of loops = 4

Possible combination of non-touching loops taken two at a time = 3

Transfer function of the system

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#20 Transfer Function GATE EC 1998 (Set 1) MCQ +1 mark -0.33 marks

The transfer function of a tachometer is of the form

Ks

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#21 Transfer Function GATE EC 1998 (Set 1) MCQ +1 mark -0.33 marks

The transfer function of a zero-order-hold system is

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#22 Transfer Function GATE EC 1998 (Set 1) MCQ +1 mark -0.33 marks

In a synchro error detector, the output voltage is proportional to , where  is the rotor velocity and n equals

– 2

–1

1

2

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#23 Transfer Function GATE EC 1998 (Set 1) MSQ +2 marks -0 marks

Draw a signal flow graph for the following set of algebraic equations:         

Hence, find the gains  and

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#24 Transfer Function GATE EC 1997 (Set 1) MCQ +1 mark -0.33 marks

In the signal flow graph of the figure is y/x equals

8.jpg

3

2

None of the above

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#25 Transfer Function GATE EC 1995 (Set 1) MCQ +1 mark -0.33 marks

Signal flow graph is used to find

Stability of the system

Controllability of the system

Transfer function of the system

Poles of the system

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#26 Transfer Function GATE EC 1995 (Set 1) MCQ +1 mark -0.33 marks

The transfer function of a linear system is the

Ratio of the output, and input

Ratio of the derivatives of the output and the input

Ratio of the Laplace transform of the output and that of the input with all initial conditions zeros

None of these

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock
Q#27 Transfer Function GATE EC 1991 (Set 1) MCQ +1 mark -0.33 marks

In the signal flow graph of Figure, the gain C/T will be

3.jpg

Explanation Locked!

Unlock this branch to view the explanation, track, bookmark and more.

Sign in to Unlock