B.Sc. DEGREE EXAMINATION, NOVEMBER 2017.
Aircraft Maintenance Science
FUNDAMENTALS OF THERMODYNAMICS
(Upto 2015 Batch)
Time 3 Hours Maximum 75 Marks
Part A x 3 15)
Answer any five questions.
1. What is a PMM1? Why is it impossible?
2. Define zeroth law and first law of thermodynamics.
3. Define entropy.
4. Define the terms source and sink.
5. What is mach number
6. What is a black body?
7. Explain the mixed or dual cycle.
8. What is refrigerating effect?
Part B x 12 60)
Answer all questions.
9. Differentiate between point function and path
function.
Or
Explain the specific heats at constant volume and
constant pressure.
Sub. Code
24
CP-7813
2
WS 20
10. Differentiate between heat pump and refrigerator.
Or
Briefly discuss about the concept of entropy.
11. What is the impulse function? What is a fanno line?
Or
Explain the occurence of choking for adiabatic flow
with function and for diabetic flow without friction.
12. What do you understand by natural convection and
forced convection?
Or
Why are counter flow heat exchangers superior to
parallel flow heat exchangers?
13. Mention the merits and demerits of the stirling and
Ericsson cycles.
Or
Explain with a line diagram the construction and
working of a vapour compression system of
refrigeration.
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