STUPIDSID
1 (a)
Name three renewable and non-renewable energy sources and compare them for advantages and disadvantages.
8 M
1 (b)
Define calorific value of fuel. Explain higher calorific value and lower calorific value.
6 M
1 (c)
With a neat sketch, explain application of solar flat plate collector.
6 M
2 (a)
Define the following terms in relation to steam:
i) Dryness fraction
ii) Latent heat
iii) Degree of super heat
iv) Saturation temperature
i) Dryness fraction
ii) Latent heat
iii) Degree of super heat
iv) Saturation temperature
8 M
2 (b)
Differentiate between water tube Boiler and Fire tube Boiler.
6 M
2 (c)
List the boiler mountings and accessories and also mention their uses.
6 M
3 (a)
Sketch ad explain working of reaction steam turbine.
8 M
3 (b)
Describe the working principle of a closed cycle gas turbine with neat sketch.
7 M
3 (c)
How water turbines are classified?
5 M
4 (a)
Explain with neat sketch construction and working of 4-stroke diesel engine with the help of theoretical P-V diagram.
10 M
4 (b)
A Gas Engine working on 4-stroke cycle has a cylinder diameter 300 mm and stroke length of 500 mm is running at 220 rpm. Its mechanical efficiency is 80% when the mean effective pressure is 0.65 MPa. Find i) Indicated power ii) Brake power iii) Friction power.
10 M
5 (a)
With a neat sketch, explain the following lathe operations.
i) Facing
ii) Cylindrical turning.
iii) Knurling.
iv) Thread cutting.
i) Facing
ii) Cylindrical turning.
iii) Knurling.
iv) Thread cutting.
8 M
5 (b)
Define automation. Discuss the different types of automation.
6 M
5 (c)
Differentiate between:
i) Drilling and Boring:
ii) Counter boring and counter sinking.
i) Drilling and Boring:
ii) Counter boring and counter sinking.
6 M
6 (a)
Explain any two types of Robot-configuration.
8 M
6 (b)
What are NC and CNC machines? Mention the difference between them.
6 M
6 (c)
What are the different operations commonly performed on milling machine? Explain any two.
6 M
7 (a)
State composition and applications of Carbon steels used in Engineering applications.
7 M
7 (b)
Define composite material. How composites are classified?
7 M
7 (c)
With neat sketches, explain different types of Flames used in Gas welding.
6 M
8 (a)
What is welding? Explain electric are welding with sketch.
7 M
8 (b)
Differentiate between soldering, brazing and welding.
7 M
8 (c)
Explain the advantages and limitations of composites.
6 M
9 (a)
What are the desirable properties of Good refrigerants?
6 M
9 (b)
With suitable sketch, explain working of vapour compression refrigeration.
8 M
9 (c)
Define the following:
i) Ton a refrigeration.
ii) Refrigeration effect.
iii) C.O.P.
i) Ton a refrigeration.
ii) Refrigeration effect.
iii) C.O.P.
6 M
10 (a)
What is principle of refrigeration? Name essential parts of refrigerator, and briefly explain their functions.
6 M
10 (b)
Explain the construction and working of room air conditioner.
8 M
10 (c)
Explain the various applications of air conditioning.
6 M
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