Question 1:
Write down a critical note on the dissimilar techniques accessible for eliminating dross throughout melting of Aluminium alloys.
Question 2:
Write down the ideal theoretical shape of the riser. Illustrate your answer in detail with the appropriate sketch.
Question 3:
What factors resolve riser adequacy? What factors determine riser economy?
Question 4:
Illustrate various welding procedures which can be employed for repair of castings.
Question 5:
Provide instances of the typical products of following processes: Precision casting, Die casting, Shell moulding.
Question 6:
Write down the merits and demerits of carbon di-oxide moulding.
Question 7:
What causes surface shrinkage at the internal angles in the castings? How it can be eradicated?
Question 8:
What do you understand by the term inter dendritic shrinkage and why does it take place?