Casting, Forming and Welding I Practice Test 4

1. What is the chemical formula of fayalite?

2. Which of the following is not a property of a sand mould?

3. Venting is a process which allows molten metal to compensate for its liquid and solidification shrinkage.

4. For the venting process, the casting yield is generally high with the overflow system in the mould.

5. The method of jolt ramming operates very leniently with the moulding equipment.

6. In the sand slinging process we can’t use a pattern with extension or projection.

7. A skin dried mold has to be poured immediately after drying.

8. What is the disadvantage of hand molding?

9. Porous sintered materials can be inserted into the mould cavity to act as a vent.

10. Friability and crumbling are the properties which help in removing the core material from the solidified casting.