MMETP105-2 Combustion & Emission in IC Engines M.Tech Model Question Paper : mgu.ac.in

Name of the College : Mahatma Gandhi University
Department : Mechanical Engineering
Subject Code/Name : MMETP 105-2/Combustion & Emission in I C Engines
Sem : I
Website : mgu.ac.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/5094-MMETP%20105%20_%202-i.pdf

Combustion & Emission in IC Engines :

M-Tech Degree Examination :
First Semester :
Model question paper I :

Related : MGU MMEMD106-3 Vibration Control & Condition Monitoring M.Tech Model Question Paper : www.pdfquestion.in/5092.html

Branch: Mechanical Engineering
Specialization: Thermal Power Engineering
MMETP 105-2 Combustion & Emission in I C Engines
(Regular -2013 Admission )
Answer ANY 4 questions by choosing at least ONE question from each module. :
Time: 3 hrs
Max. Marks: 100
1. a) Explain the dissociation effect during combustion. 5 Marks
b) Explain Lamninar and Turbulent flame propogation in engines 15 Marks
c) Define flammability limits with suitable sketches. 5 Marks
OR
2. a) Write the basics of pre flame reactions 10 Marks
b) Write the combustion equation for a general fuel of Cx Hy type 15 Marks

3. a) Differentiate the terms pre ignition and knocking 5 Marks
b) What are the major factors to be considered for the design of SI engine combustion chamber. 10 Marks
c) Which are the major after treatment devices for SI engine. 10 Marks
OR
4. a) Define the terms flame development and flame propagation in engines. 10 Marks
b) What are the advantages and disadvantages of
1) Lean burn combustion and
2) Stratified charged engine. 15 Marks

5. a) Explain the stages of fuel vapourisation in detail 10 Marks
b) What are the factors affecting knocking and pre ignition in CI engine and explain the effects of variation in these factors in knocking and pre ignition. 15 Marks
OR
6. a) What is the effect of EGR in emissions from CI engine. 10 Marks
b) Compare DI and IDI engines. 10 Marks
c) What is the effect of injection pressure on combustion 5 Marks

7. a) List the major pollutants from SI engines. How can we measure and control each of them. 15 Marks
b) What are major sources of HC emissions from SI engines. 10 Marks
OR
8. a) What are the effects of pollutants from CI engines on environment and human beings. How can these be controlled to certain extent. 15 Marks
b) Write short notes on soot and particulate traps. 10 Marks

M-Tech Degree Examination :
First Semester
Model question paper I :
Branch : Mechanical Engineering
Specialization : Thermal Power Engineering
MMETP 106 – 2 Thermal and Nuclear Power Plants : (Regular -2013 Admission )
Answer All Questions
Time : 3 hrs
Max. Marks : 100
1. Explain in detail the various applications of steam power plant. 25 Marks OR
2. Explain different types of furnaces and its applications 25 Marks

3. Explain different types of boilers and its application in power generation. 25 Marks OR
4. Explain the functions of economizer in boiler and how boiler maintenance is conducted. 25 Marks

5. Explain different types of reactors and the various applications 25 Marks OR
6. What is Neutron scattering, how it is influence the reactor design 25 Marks

7. Explain the difference between waste management and water management; how it influence the nature. 25 Marks OR
8. Explain the working of nuclear reactors and the safety system precautionary steps taken in a reactor. 25 Marks

M-Tech Degree Examination :
First Semester
Model question paper I :
Branch : Mechanical Engineering
Specialization : Thermal Power Engineering
MMETP 105 – 4 Finite Element Methods in Thermal Engineering : (Regular -2013 Admission )
Answer All Questions
Time : 3 hrs
Max. Marks : 100
1. State and explain the governing equation for 3 dimensional heat transfer. What are the boundary and initial conditions? 25 Marks OR
2. Derive the heat conduction equation in cylindrical co ordinates. Mention the boundary and initial conditions 25 Marks

3. Derive finite element equation for heat conduction problems using variational approach 25 Marks OR
4. Calculate the temperature distribution in stainless steel fin shown below. The region is dicretized in to % elements and 6 nodes. 25 Marks

5. For a linear triangular element, calculate the stiffness matrix for a nodal local vector if the surface heat transfer co efficient on any of the side varies linearly. 25 Marks

6. Derive the conventional (Bubnor_Galerkin) and up wind (Petror- Galerkin) convection conductance matrix and convection heat load vector for the one dimensional flow. 25 Marks