Cochin University of Science and Techology (CUST) 2007 B.Tech mechanical engineering - Question Paper

BTECH DEGREE I&II SEMESTER exam
MAY 2007
BASIC MECHANICAL ENGINEERING

Time: one ½ Hrs Max marks:50


PART A

1) 1. State & discuss 1st legal regulations of thermodynamics

2. State 2nd legal regulations of thermodynamics(Kelvin plank& Clausins statements)

3. discuss summer air conditioning system

4. discuss the principle of working of reaction turbines with neat sketches

PART B

2) a) Derive the governing formula fir a non flow reversible adiabatic process

b) Briefly discuss the working of a two stroke cycle diesel engine with neat sketches.
OR

3) a) discuss coil ignition system in a petrol engine

b) Briefly discuss vapour absorption refrigeration system

4) What is compounding of turbines?Explain various kinds of compounding with
neat sketches.
OR

5) elaborate various methods of arc welding? discuss welding defects .


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Earning:   Approval pending.