14.

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23,

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26.

How is steam produced in a fire tube boiler? Explain with a neat figure.
Answer any 2 complete questions each having 6 marks

Write a short note on impact of refrigerants on था vironment.
Demonstrate the working of a vapour compression refrigeration system with the help of a neat

sketch.

Distinguish between window air conditioner and split air conditioner.

Answer any 2 complete questions each having 6 marks

Explain the working of a cone clutch in an automobile.

Sketch different types of gear trains and explain.

Explain the different types of brakes. 0
PART C

Answer any 2 complete questions each having 7 marks

Discuss the various properties of engineering materials.
In a certain fabrication industry, they want to join two dissimilar metal pipes, which method
should they follow? Justify.

Differentiate between welding, brazing and soldering.

Answer any 2 complete questions each having 7 marks (

Draw the neat sketch of a lathe and explain its principle parts.
Explain the working principle of a shaping machine.

With a neat sketch, explain a drilling machine.