Exam Details
| Subject | Rocket Propulsion | |
| 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
I BASE-002 1
B.Tech. AEROSPACE ENGINEERING (BTAE) . Term-End Examination December, 2016
BASE-002 ROCKET PROPULSION
Time hours Maximum Marks: 70
Note:
Attempt any five questions.
Each question carries equal marks.
Use of scientific calculator is permitted.
Assume suitable data, missing, if any.
1. How does the shape of nozzle affect performance How do you overcome the thrust loss associated with over expansion
Draw a neat sketch and briefly explain about electric rocket propulsion technique. 7+7=14
2. Explain optimal rockets. Distinguish between the two-stage and three-stage rockets.
Explain briefly the various types of igniters with their relative advantages and limitations. 7+7=14
3. Why is multistaging necessary in rocket propulsion?
Differentiate between solid propellant rocket and hybrid rocket. 7+7=14
4. What is the purpose of· primary and secondary air in combustion chamber?
Discuss the important factors affecting combustor design. 7+7=14
5. Define critical pressure ratio of a nozzle and discuss why attainment of sonic velocity determines the maximum mass rate of flow through a nozzle.
Air enters a frictionless adiabatic converging nozzle at 70 bar, 500 K with negligible velocity. The nozzle discharges to a region at 2 bar. If the exit area of the nozzle is 2.5 cm2, find the flow rate of air through the nozzle. Assume for the air Cp =1005 J/kg-K and Cv= 718 J/kg-K. 7+7=14
6. Discuss the methods of flame stabilization in brief.
Explain the following: 7+7=14
Combustion rate
Equilibrium. combustion pressure
7. Write short notes on any two of the following: 7+7=14
Internal Ballistic Rockets
Ejector and Variable Area Nozzles
Liquid Propellants
I BASE-002 1
B.Tech. AEROSPACE ENGINEERING (BTAE) . Term-End Examination December, 2016
BASE-002 ROCKET PROPULSION
Time hours Maximum Marks: 70
Note:
Attempt any five questions.
Each question carries equal marks.
Use of scientific calculator is permitted.
Assume suitable data, missing, if any.
1. How does the shape of nozzle affect performance How do you overcome the thrust loss associated with over expansion
Draw a neat sketch and briefly explain about electric rocket propulsion technique. 7+7=14
2. Explain optimal rockets. Distinguish between the two-stage and three-stage rockets.
Explain briefly the various types of igniters with their relative advantages and limitations. 7+7=14
3. Why is multistaging necessary in rocket propulsion?
Differentiate between solid propellant rocket and hybrid rocket. 7+7=14
4. What is the purpose of· primary and secondary air in combustion chamber?
Discuss the important factors affecting combustor design. 7+7=14
5. Define critical pressure ratio of a nozzle and discuss why attainment of sonic velocity determines the maximum mass rate of flow through a nozzle.
Air enters a frictionless adiabatic converging nozzle at 70 bar, 500 K with negligible velocity. The nozzle discharges to a region at 2 bar. If the exit area of the nozzle is 2.5 cm2, find the flow rate of air through the nozzle. Assume for the air Cp =1005 J/kg-K and Cv= 718 J/kg-K. 7+7=14
6. Discuss the methods of flame stabilization in brief.
Explain the following: 7+7=14
Combustion rate
Equilibrium. combustion pressure
7. Write short notes on any two of the following: 7+7=14
Internal Ballistic Rockets
Ejector and Variable Area Nozzles
Liquid Propellants
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
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- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
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- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
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- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
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
- Flight Mechanics
- High Speed Aerodynamics
- 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