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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIRST SEMESTER B.TECH DEGREE EXAMINATION, JUNE 2016
Course Code: BE101-02
Course Name: INTRODUCTION TO MECHANICAL ENGINEERING SCIENCES

Max. Marks: 100 Duration: 3 Hours
PART A
Answer ALL questions. Each question carries 3 marks
1. State two classical statements of second law of thermodynamics.
List the broad classification of air compressor and give the application of each type.
List the application of refrigeration in construction industry.
What is meant by chassis of an automobile?
Define the following : (1) Rigid Body, (ii) Resistant Body
What is Grashof’s law?
Differentiate between BCC and FCC structures.

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Give any three advantages of composites.
PART 8
Answer any 2 complete questions from each module

MODULE 1
9. Define the terms (a) Thermodynamic System, (b) State,

(c) Process, (d) Control mass (e) Control volume (f) Control surface (6)
10. Explain first law of thermodynamics, its limitations and how these limitations are
addressed by the second law of thermodynamics. (6)
11. 2) A man inside a closed room switched on the ceiling fan hoping to reduce the
temperature of the room. Is his intuition justified thermodynamically? Give reason
for your answer. (3)
b) The use of electric heaters to heat up living spaces in colder countries is said to be

thermodynamically inefficient. Discuss the reason. (3)