Download PTU B.Tech 2020 March ME 3rd Sem Basic Thermodynamics Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech ME (Mechanical Engineering) 2020 March 3rd Sem Basic Thermodynamics Previous Question Paper

1 | M-76422 (S2)- 1226
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ME) (2018 Batch) (Sem.?3)
BASIC THERMODYNAMICS
Subject Code : BTME305-18
M.Code : 76422
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Write briefly :
a. State the conditions for a process to be reversible.
b. Define Zeroth law of thermodynamics.
c. Define Thermodynamic work.
d. Define Enthalpy.
e. What is throttling process?
f. What is heat pump? How it differs from a refrigerator?
g. State Entropy principle.
h. What is air standard efficiency?
i. What is explosion ratio?
j. How I.C. engines are classified?
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1 | M-76422 (S2)- 1226
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ME) (2018 Batch) (Sem.?3)
BASIC THERMODYNAMICS
Subject Code : BTME305-18
M.Code : 76422
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Write briefly :
a. State the conditions for a process to be reversible.
b. Define Zeroth law of thermodynamics.
c. Define Thermodynamic work.
d. Define Enthalpy.
e. What is throttling process?
f. What is heat pump? How it differs from a refrigerator?
g. State Entropy principle.
h. What is air standard efficiency?
i. What is explosion ratio?
j. How I.C. engines are classified?
2 | M-76422 (S2)- 1226
SECTION-B
2. Explain the terms state, path, process and cycle.
3. Write the similarity and dissimilarities between work and heat.
4. State first law of thermodynamics and write its corollaries.
5. A reversible heat engine delivers 0.6 kW power and rejects heat energy to a reservoir at
300 K at the rate of 24 kJ/min. Make calculation for the engine efficiency and the
temperature of the thermal reservoir supplying heat to the engine.
6. Explain the process of steam generation at constant pressure and show the various stages
on p-v and T-v diagrams.

SECTION-C
7. Derive analytical expression to find the work done, heat supplied and change in internal
energy in adiabatic process.
8. Derive expression for steady flow energy equation and discuss its various engineering
applications.
9. Define an expression for the air standard efficiency of the Diesel cycle in terms of the
compression ratio, cut off ratio and the adiabatic index.






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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