Casting, Forming and Welding I Practice Test 7

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

2. Which of the following products is most suitable to cast by low-pressure die casting method?

3. In slush casting, the method of multiple pouring leads to the fast production of castings.

4. The speed of rotation is almost double in semi centrifugal casting as compared to the true centrifugal casting.

5. How much time (in a minute) is usually required for the passing of Co₂ through the mould?

6. The method of squeeze casting is very expensive to use because of its less productivity.

7. Which of the following is used for the reduction of friction between the mould’s surface and metal strand?

8. What should be the range of pressure (in MPa) under which molten metal is pressed to form the castings by squeeze casting method?

9. An intermediate feeding component takes part in the in-direct type of squeeze casting.

10. Which of the following methods of casting is best suitable for the casting of long length slabs and billets?