Casting, Forming and Welding I Practice Test 3

1. In shell core making, the core box is heated up to what temperature?

2. Dielectric core bakers are faster in operation and have good control of maintaining the temperature.

3. Silica gel is formed when sodium bicarbonate reacts with carbon monoxide.

4. What is the green compression strength of core sand mixture for general purpose?

5. In sand preparation, which of the following is not used as an additive?

6. Name the material in place of the question mark?

7. Name the material in place of the question mark?

8. What is the melting point of Chamotte?

9. Big cores are set in molds by hand.

10. What is positioned between mold and core surface?