PTU B.Tech Mechanical Engineering 6th Semester May 2019 71189 IC ENGINES Question Papers

PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester Mechanical Engineering (MECH)

Roll No.
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(ME) (E-I 2011 Onwards) (Sem.?6)
IC ENGINES
Subject Code : DE/ME-1.1
M.Code : 71189
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt any T WO questions.

SECTION-A
1.
Answer briefly :

a. Define sterling cycle.

b. Write a difference between two stroke and four stroke engine.

c. What is fuel air cycle?

d. Define calorific value of fuel.

e. Write two properties of air fuel mixture.

f. What is fuel filter?

g. What is compression ratio?

h. What is knocking?

i. What is the ratio of air and fuel mixture in diesel engine?

j. Define engine blow.
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SECTION-B
2.
Explain with diagram injection pump governor.
3.
What is carburetor? And write down basic requirements from it.
4.
Explain abnormal combustion and knocking.
5.
Explain valve timing diagram of two stroke petrol engine.
6.
Explain methods used to determine minimum air quantity supplied to gases.

SECTION-C
7.
What is super charger, explain its types and its purpose?
8.
Explain different types of fuel injection systems.
9.
Explain all the devices used to meet the requirements of an ideal carburetor.








NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.

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