Exam Details
| Subject | Basic Control Theory | |
| Paper | ||
| Exam / Course | B.Tech in Aerospace Engineering (BTAE) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 3
IBAS';020 1 B.Tech. AEROSPACE ENGINEERING (BTAE) Term-End Examination u01..73
December, 2016
BAS-020 BASIC CONTROL THEORY
Time hours Maximum Marks: 70
Note: Attempt any five .questions. All questions carry equal marks. Use of scientific calculator is permUted.
1. Explain the importance of Laplace and Fourier transforms in control theory. 6
Describe the dynamics of stable and unstable systems with the help of examples. 8
2. What do you mean by feedback control system Distinguish between open-loop and closed-loop control systems with the help of diagrams. 6
Define and explain the significance of phase margin and gain margin. How can you obtain the values of these margins from BODE plots? 8
3. Determine whether the characteristic equations given below are having stable or unstable roots: 2x7=14
61-.2 121-. 8
21-.3 41-.2 41-. 12
4. Write short notes on the following: 2x7=14
Routh-Hurwitz Stability Criterion
Signal Conversion and Processing
5. Explain the rules for graphical construction of root locus plot. 7
How does addition of poles and zeroes affect the stability characteristic of a closed-loop system? Explain. 7
6. Determine the value of k such that the roots of the characteristic equation given below lie on the left of lines 7
s3 10s2 18s k
Write a note on 'Proportional Integral Differential Controller. 7
7. Develop the transfer function of a control surface servo actuator for the servo based on an electric motor. 10
Explain the following terms 4
Steady state error
Time delays
8. Sketch the Nyquist plot for the system having open-loop transfer function
1 14
IBAS';020 1 B.Tech. AEROSPACE ENGINEERING (BTAE) Term-End Examination u01..73
December, 2016
BAS-020 BASIC CONTROL THEORY
Time hours Maximum Marks: 70
Note: Attempt any five .questions. All questions carry equal marks. Use of scientific calculator is permUted.
1. Explain the importance of Laplace and Fourier transforms in control theory. 6
Describe the dynamics of stable and unstable systems with the help of examples. 8
2. What do you mean by feedback control system Distinguish between open-loop and closed-loop control systems with the help of diagrams. 6
Define and explain the significance of phase margin and gain margin. How can you obtain the values of these margins from BODE plots? 8
3. Determine whether the characteristic equations given below are having stable or unstable roots: 2x7=14
61-.2 121-. 8
21-.3 41-.2 41-. 12
4. Write short notes on the following: 2x7=14
Routh-Hurwitz Stability Criterion
Signal Conversion and Processing
5. Explain the rules for graphical construction of root locus plot. 7
How does addition of poles and zeroes affect the stability characteristic of a closed-loop system? Explain. 7
6. Determine the value of k such that the roots of the characteristic equation given below lie on the left of lines 7
s3 10s2 18s k
Write a note on 'Proportional Integral Differential Controller. 7
7. Develop the transfer function of a control surface servo actuator for the servo based on an electric motor. 10
Explain the following terms 4
Steady state error
Time delays
8. Sketch the Nyquist plot for the system having open-loop transfer function
1 14
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Subjects
- Aerodynamics- I
- Aerodynamics- II
- Aircraft Design/Launch Vehicle/ Rocket Design
- Aircraft Instruments
- Aircraft Safety and Maintenance Engineering
- Aircraft Structures
- Aircraft Systems And Airworthiness Requirements
- Applied Chemistry
- Applied Physics
- Basic Control Theory
- CNS-ATM system
- Composite Materials
- Computer Fundamentals
- Engineering Drawing
- Environmental Science
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- Instruction To Computer Play Device
- Introduction to Aeronautics
- Introduction To Rocket And Missiles
- Mechanics Design
- Propulsion- I
- Propulsion- II
- Rocket Propulsion
- Space Dynamics
- Strength of Materials
- Technical Writing and Communication Skills
- Workshop Technology