Exam Details
| Subject | Combustion Engineering | |
| Paper | ||
| Exam / Course | Diploma in Mechanical Engineering (DMEVI)& B.Tech. MECHANICAL ENGINEERING 1-4 (BTMEVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2015 | |
| City, State | new delhi, |
Question Paper
Explain briefly the combustion phenomenon in CI engine.
Discuss in brief the phenomenon of "Diesel Knock". State the differences in the knocking phenomenon of SI and CI engines.
Describe briefly the basic methods of generating air swirl in CI engines' combustion chambers.
Explain in brief the combustion phenomenon in SI engines
What do you mean by pre-ignition? How can it be detected?
"The highest compression ratio that can be used in an 81 engine is limited by the detonation characteristics of the available fuel" -Justify the statement.
What action can be taken with regard to the following variables, in order to reduce the possibilities of detonation in an 81 engine Justify your answer by giving reasons.
Compression ratio
Mass of charge induced
Mixture inlet
Engine speed
Why is spark advance required in SI engines? Discuss the factors that affect the ignition timing.
Define "Higher Heating Value and "Lower Heating Value (LHV)". Explain the difference between Higher Heating Value and Lower Heating Value (LHV).
Calculate the amount of theoretical air required for' the combustion of 1 kg of acetylene(C2H2) to CO2 and H2O.
State the relative advantages and disadvantages of battery and magneto-ignition systems.
The chemical analysis of a fuel by weight is as follows:
Carbon 50 percent;
Hydrogen =25 percent;
Oxygen 10 percent;
Sulphur 5 percent; and.
Nitrogen 10 percent.
Find the stoichiometric amount of air required for complete combustion of this fuel.
Discuss in brief the phenomenon of "Diesel Knock". State the differences in the knocking phenomenon of SI and CI engines.
Describe briefly the basic methods of generating air swirl in CI engines' combustion chambers.
Explain in brief the combustion phenomenon in SI engines
What do you mean by pre-ignition? How can it be detected?
"The highest compression ratio that can be used in an 81 engine is limited by the detonation characteristics of the available fuel" -Justify the statement.
What action can be taken with regard to the following variables, in order to reduce the possibilities of detonation in an 81 engine Justify your answer by giving reasons.
Compression ratio
Mass of charge induced
Mixture inlet
Engine speed
Why is spark advance required in SI engines? Discuss the factors that affect the ignition timing.
Define "Higher Heating Value and "Lower Heating Value (LHV)". Explain the difference between Higher Heating Value and Lower Heating Value (LHV).
Calculate the amount of theoretical air required for' the combustion of 1 kg of acetylene(C2H2) to CO2 and H2O.
State the relative advantages and disadvantages of battery and magneto-ignition systems.
The chemical analysis of a fuel by weight is as follows:
Carbon 50 percent;
Hydrogen =25 percent;
Oxygen 10 percent;
Sulphur 5 percent; and.
Nitrogen 10 percent.
Find the stoichiometric amount of air required for complete combustion of this fuel.
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)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Advanced Dynamics Of Machine
- Automobile Engineering
- Combustion Engineering
- Computer Aided Manufacturing
- Computing Aided Design
- Design of Machine Elements
- Engineering Metallurgy
- Engineering Thermodynamics
- Experimental Stress Analysis
- Finite Element Analysis
- Fluid Mechanics
- Heat And Mass Transfer
- Heat Transfer
- I.C. Engines
- Industrial Engineering
- Industrial Ergonomics
- Industrial Measurement And Quality Control
- Industrial Organization And Management
- Kinematics and Dynamics of Machines
- Machine Design - I
- Machine Design-Ii
- Machine Drawing
- Machines Tools
- Maintenance Engineering
- Material Science
- Materials Handling
- Mechanical System Design
- Mechanical Vibration
- Mechanics Of Materials
- Mechatronics
- Metrology
- Metrology And Quality Control
- Non-Conventional Energy Resources
- Non-Destructive Testing
- Nuclear Power Engineering
- Optimisation Techniques In Engineering
- Optimization For Engineering Design
- Power Plant Engineering
- Power Transmitting Elements
- Product Development And Design
- Production And Operations Management
- Production Technology - Ii
- Production Technology-I
- Refrigeration And Air Conditioning
- Refrigeration System
- Robotics
- Safety Engineering
- Technical Entrepreneurship
- Thermal Engineering
- Thermal Engineering - I
- Thermofluid Engineering
- Total Quality Management (Tqm)
- Tribology
- Turbo Machines
- Unconventional Manufacturing Processes
- Welding Engg.