1000+ Foundry Engineering Multiple Choice Questions and Answers - 3

Question: 11

Which of the following test on castings is based on sound?

(A) radiographic

(B) magnetic particle inspections

(C) percussion test

(D) impact test

Question: 12

Gated patterns are normally used for

(A) castings for light metals

(B) castings having several hollow spaces

(C) mass production of small castings

(D) production of castings which do not require machining

Question: 13

For stress relieving, castings are

(A) heated in stages and also cooled in stages

(B) heated to a temperature around melting point and slowly cooled

(C) heated by flame and air cooled

(D) heated to low temperature and furnace cooled

Question: 14

Lowest pouring temperature alloy is

(A) monel metal

(B) cupro nickel alloy

(C) phosphor bronze

(D) tin bronze

Question: 15

Magnesium aluminium alloys are grain refined by addition of

(A) carbon

(B) tin

(C) manganese

(D) sulphur