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  • Linear Control Systems BTEE-402 4th Sem B.Tech April 2019 PTU Paper

Linear Control Systems BTEE-402 4th Sem B.Tech April 2019 PTU Paper

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  • Categories Blog, Linear Control Systems, Linear Control Systems PTU Paper
  • Date July 15, 2020
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Download Previous Year PTU University Question  Paper of Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU APRIL 2019 Paper

B.Tech. (EE-2011 Batch)

LINEAR CONTROL SYSTEMS

Subject Code : BTEE-402          Paper ID : [ A1188]

Time : 3 Hrs.                          Max. Marks : 60

INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions

Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU Nov 2019 Paper

SECTION-A

Q1. Answer Briefly.

a) What do you mean by disturbance? Explain.

b) Write down the pneumatic and electrical analogies.

c) What do you mean by sampled data control system? Explain.

d) Discuss (in brief) various time domain test input signals.

e) List the advantages of block diagram representation.

f) What do you mean by absolute and relative stability? Explain.

g) Discuss the importance of compensators in control system.

h) What is the need of error detectors in control system? Explain.

i) What is the significance of rise time and settling time? Discuss.

j) What is the need of time and frequency domain analysis? Discuss.

                                      SECTION-B

Q2. Attempt any FOUR questions.                                                                    5×4=20


2. Differentiate the following with suitable examples :
a) Open and closed loop systems
b) Linear and non-linear systems
3. Discuss the relationship between time and frequency response for second order systems.
4. Determine the stability of a closed loop control system (using the Routh-Hurwitz criterion) whose characteristics equation is given by

2S5 + 2S4 + + 4S3 + 4S2 + 22S + 20 = 0

The unity feedback control system has open loop transfer function

G(s) =K/s(s + 4). Draw the root locus and determine the value of K if damping ratio is to be 0.707.

5.Explain the field-controlled D.C. servomotor. Also derive the transfer function relating the output wm(s) and the input Vf(s).

                                     SECTION-C

Q3. Attempt any TWO questions.                              2×10=20

1.Explain :

    a) Synchros

    b) Parallel compensation

2.Sketch the Bode plot for the transfer function given below : G(s)H(s) =4(s + 4)/s2 (s + 2)(s + 5)

3.Discuss :

  a) Steady state error and error coefficient

   b) Modelling of mechanical systems

Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU APRIL 2013 Paper

Get Started

Section a Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU APRIL 2019 Paper

What do you mean by disturbance? Explain.

Explain Disturbance

 

Write down the pneumatic and electrical analogies.

Pneumatic and electrical analogies.

 

What do you mean by sampled data control system? Explain.

Sampled data control system.

 

Discuss (in brief) various time domain test input signals.

Various time domain test input signals.

 

List the advantages of block diagram representation.

Advantages of block diagram representation.

 

What do you mean by absolute and relative stability? Explain.

Explain absolute and relative stability.

 

Discuss the importance of compensators in control system.

Importance of compensators in control system.

 

What is the need of error detectors in control system? Explain.

Need of error detectors in control system.

 

What is the significance of rise time and settling time? Discuss.

Significance of rise time and settling time.

 

What is the need of time and frequency domain analysis? Discuss.

Discuss Need of time and frequency domain analysis.

 

Linear Control Systems 4th Sem BTEE-402 B.Tech PTU APRIL 2019 Paper 

Section B :Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU APRIL 2019 Paper              

Differentiate the  a) Open and closed loop systems

Differentiate the Open and closed loop systems

b) Linear and non-linear systems

Linear and non-linear systems

Discuss the relationship between time and frequency response for second order systems.

Relationship between time and frequency response for second order systems.

Determine the stability of a closed loop control system (using the Routh-Hurwitz criterion) whose characteristics equation is given by 2S5 + 2S4 + + 4S3 + 4S2 + 22S + 20 = 0 The unity feedback control system has open loop transfer function

Stability of a closed loop control system (using the Routh-Hurwitz criterion) whose characteristics equation is given by

2S5 + 2S4 + + 4S3 + 4S2 + 22S + 20 = 0

The unity feedback control system has open loop transfer function

G(s) =K/s(s + 4). Draw the root locus and determine the value of K if damping ratio is to be 0.707.

 

Explain the field-controlled D.C. servomotor. Also derive the transfer function relating the output wm(s) and the input Vf(s).

Field-controlled D.C. servomotor.

Derive the transfer function relating the output wm(s) and the input Vf(s).

Linear Control Systems 4th Sem BTEE-402 B.Tech PTU APRIL 2019 Paper 

Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU APRIL 2019 Paper

Get Started

Section c :-Linear Control Systems 4th Sem BTEE-402 B.Tech EE PTU APRIL 2019 Paper

Explain a) Synchros

a) Synchros

   

Explain b) Parallel compensation

b) Parallel compensation

 

Sketch the Bode plot for the transfer function given below : G(s)H(s) =4(s + 4)/s2 (s + 2)(s + 5)

Bode plot for the transfer function given below : G(s)H(s) =4(s + 4)/s2 (s + 2)(s + 5)

 

Discuss a) Steady state error and error coefficient

a) Steady state error and error coefficient

 

Discuss    b) Modelling of mechanical systems

   b) Modelling of mechanical systems

Linear Control Systems 4th Sem BTEE-402 B.Tech PTU APRIL 2019 Paper 
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