August
V62/T07052/EE/20150812
2015
Thermal Engineering - 1
Instructions:
Marks-80
Time: 3 Hrs
1. All questions are compulsory.
2. “Long Answer type Question (LAQ)” is a supply type
question of 15 marks which required a typical answer of about
60-80 lines in bout 32-40 minutes.
3. “Sort Answer type Question (SAQ)” is a supply type question
of 5 marks which required a typical answer of about 15-20 lines
in bout 08-10 minutes.
4. Figures to the right indicate marks allotted to the questions.
5. Assume suitable data if necessary
6. Use a nonprogrammable type of scientific calculator is
allowed
Marks
SECTION-A
Q.1 A certain gas occupies a space of 0.3 m3 at a pressure of 2 Bar and
the temperature of 770C. It is heated at a constant volume, Until the
pressure is 7 bars. Determine
i)
temperature at the end of process
ii)
Mass of gases
iii)
Change in internal energy
iv)
Change in enthalpy during process. Assume Cp=1.005
KJ/Kg-K Cv=0.712 KJ/Kg-K and R=287 J/Kg-K
15
OR
Q.1 Explain in brief Ideal Gas Processes.
15
Q.2 Classify & explain Various Sources of Energy
15
OR
Q.2 State with example
i)
Fourier’s Laws of Heat Conduction
ii)
Stefan-Boltzmann Law
iii)
Avogadro’s Law
Q.3
Name the variables which controls the physical properties of
perfect gas
15
5
Q.4 Draw a diagram of Photovoltaic Cell with naming
5
SECTION-B
Q.5 Write down a short note on
i)Vapor Process - Constant Pressure; Constant Volume; Constant
Enthalpy; Constant Entropy
ii) Latent and sensible Heat
iii) Rankin Cycle
OR
15
Q.5 Explain with neat labeled diagram of Boiler Mounting and
Accessories
15
Q.6 Draw a neat labeled diagram and write down comparison of Forced
Draught, Natural Draught and Induced Draught
15
OR
Q.6 Explain in detail
i)
Sources of Air Leakage in Condenser
ii)
Effects of Air-Leakage in Condenser
15
Q.7 Write down Properties of Steam
5
Q.8 Write down Application of Nozzle
5
Computer Generated Random Question Paper dated: 06-07-2015 16:15:00
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