Casting, Forming and Welding I Mock Test 7

1. The castings made by vacuum die casting have more strength than the castings made by die casting.

2. Overflows should be avoided as much as possible in the designing of a die.

3. Which of the following terms is used for the presence of excess metal in the parting plane?

4. Sometimes over-gassing can cause the sticking of pattern to the mould in Co₂ moulding.

5. Co₂ moulding is mainly used for the increase in strength and hardness of the moulds and cores.

6. Which of the following materials is mostly used as a die material in gravity die casting?

7. Visual inspection is more economical than the other methods of non-destructive testing.

8. In squeeze casting, die preheating temperature is maintained within close limits and very precise.

9. There is no requirement of any type of cores in the method of slush casting.

10. Before starting of casting process, a dummy starter bar is used in the continuous casting method.