Applied Technology

Question 1

1In sand casting, the shape used to make the cavity in the sand is the

Easy

A. crucible B. ladle C. pattern D. riser

Question 2

2Normalising steel involves heating it and

Hard

A. cooling in the furnace B. cooling in oil C. quenching in water D. cooling it in still air

Question 3

3Reheating hardened steel to a lower temperature to reduce brittleness is

Easy

A. forging B. casting C. tempering D. quenching

Question 4

4Heating steel and then cooling it quickly in water or oil is

Easy

A. normalising B. annealing C. tempering D. hardening (quenching)

Question 5

5Tempering after hardening

Easy

A. adds carbon B. melts the steel C. reduces brittleness while keeping some hardness D. makes steel fully soft

Question 6

6Quenching hot steel in water makes it

Easy

A. softer B. longer C. non-metallic D. harder but more brittle

Question 7

7Sand moulds are made using a box called a

Medium

A. flask (moulding box) B. crucible C. ladle D. kiln

Question 8

8Case hardening produces

Medium

A. a soft surface B. a melted surface C. a brittle core D. a hard surface with a tough core

Question 9

9In a sand mould, the riser

Medium

A. cools the metal B. is where the sand is mixed C. supplies extra molten metal as the casting cools and shrinks D. holds the pattern

Question 10

10Molten metal enters a sand mould through the

Medium

A. pattern B. runner and sprue C. vent only D. core box