question_answer

Consider the following statements: Addition of silicon to cast iron

1. Promotes graphite module formation.

2. Promotes graphite flake formation.

3. Increases the fluidity of the molten metal.

4. Improves the ductility of cast iron.

Of these statements:

A) 1 and 4 are correct         

B) 2 and 3 are correct

C) 1 and 3 are correct         

D) 3 and 4 are correct.