Heat treatment and sand casting

Question 1 of 10

Heating steel and then cooling it quickly in water or oil is

Question 2 of 10

In sand casting, the shape used to make the cavity in the sand is the

Question 3 of 10

Quenching hot steel in water makes it

Question 4 of 10

Annealing a metal makes it

Question 5 of 10

Reheating hardened steel to a lower temperature to reduce brittleness is

Question 6 of 10

Sand moulds are made using a box called a

Question 7 of 10

Tempering after hardening

Question 8 of 10

In a sand mould, the riser

Question 9 of 10

Molten metal enters a sand mould through the

Question 10 of 10

Case hardening produces