10112
Reg. No.: Name:
FIRST SEMESTER B.TECH DEGREE EXAMINATION, JANUARY 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. Distinguish between the terms ‘entropy’ and ‘enthalpy’.

2. List out different applications any one of turbo machines.

3. When you purchase an air conditioning unit, one of its specifications is given in TR. What does
this mean?

Give any 3 different classifications of automobiles.

Apply Grashof’s law to any 4-bar mechanism.

Define the term mechanical advantage.

Mention any 3 applications of composites.

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‎Name any three alloys and give their applications.

‎PART B
Answer any 2 complete questions from each module.
MODULE 1 (6x2 = 12 Marks)
9. A) What is irreversibility? What causes it?
B) State Clausius inequality and its significance
10. State Kelvin Plank and Clausius statements of second law of thermodynamics and give their
physical significance.

‎11. List any three renewable power sources and compare their advantages and disadvantages

‎MODULE 2 (6x2 = 12 Marks)
12. With help of a neat sketch explain working of a four stroke diesel engine.

‎13. A) Write 3 significant events in the history of development of modern steam turbine.
B) List the applications of gas turbines

‎14. Differentiate between impulse and reaction turbines