Casting, Forming and Welding I Practice Test 6

1. Cooling of casting walls of non uniform thickness results into formation of tears or warping in the metal casting.

2. A reduced metal section at the casting joint makes easy removal of gates and risers from the castings.

3. Which is the most widely used resin in shell moulding?

4. Electric arc furnaces are most suitable for which of the following type of material?

5. Faster and uneven cooling of hot casting affects the castings badly or may cause several defects in the castings.

6. Which of the following ways of cooling is used for the maintaining of die temperature?

7. Which of the following types of clamping is mostly performed for the joining of shells?

8. In permanent mould casting, the temperature at which the mould is used does not depend on _____

9. Over-curing or under-curing of the shell mould, leads to the generation of sophisticated problems in the shell mould.

10. In the solidification process, external angles have a lower cooling rate than re-entrant angles of the casting.