STUPIDSID
1 (a)
Explain the basic steps involed in a casting process.
6 M
1 (b)
What are pattern allowaness ?Explain any two
5 M
1 (c)
What are additives ?list the various addivtives used in moulding sand.
4 M
1 (d)
Explain with neat sketch sweep pattern.
5 M
2 (a)
Describe the desirable properties of a moulding sand.
6 M
2 (b)
What are the casting defects? Explain any two.
6 M
2 (c)
With neat sketch explain Jolt-squeeze moulding machine.
8 M
3 (a)
Explain briefly the following with sketches :
i) CO2.ii) Shell moulding .
i) CO2.ii) Shell moulding .
10 M
3 (b)
Explain the following with neat sketch
i) Centrifuging ii) Squeeze-casting
i) Centrifuging ii) Squeeze-casting
10 M
4 (a)
Explain the construction and working of principle of direct electric arc furnace. List the advantages.
10 M
4 (b)
Explain with neat sketch working principle of resistance furnace. List the advantages, disadvantages and application.
10 M
5 (a)
Define welding . Give classification of welding process.
6 M
5 (b)
Explain Inert Gas Metal Arc welding (MIG) and atomic hydrogen welding process.
8 M
5 (c)
Expalin briefly forward and backword welding methods in gas welding.
6 M
6 (a)
Expalin the principle of seam welding with neat sketch.
6 M
6 (b)
With neat sketch explain projection welding process. List the advantages of projection welding.
8 M
6 (c)
With neat sketch explain explosive welding process. List the application.
6 M
7 (a)
Discuss the factors affecting weldability of metals.
6 M
7 (b)
Explain the parameters affecting Heat Affecting zone (HAZ) briefly.
6 M
7 (c)
Explain briefly weldings defects and its causes.
8 M
8 (a)
Compare soldering and brazing processes. Mention their advantages and disadvantages.
10 M
8 (b)
What is NDT? Explain radiography and Eddy current method of inspection of metals.
10 M
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