1000+ Foundry Technology Objective Type Questions and Answers - 1

Question: 1

Plaster patterns and core boxes are made of

(A) white powder

(B) bone china clay

(C) gypsum cement

(D) plaster of paris

Question: 2

A slick is mainly used for

(A) removing pattern from the mould

(B) making openings in mould

(C) providing openings in the mould

(D) repairing and finishing of mould

Question: 3

Chaplets are made of

(A) metal

(B) wood

(C) organic matter

(D) core sand

Question: 4

Which of the following is very powerful carbide former in cast iron?

(A) vanadium

(B) chromium

(C) nickel

(D) silicon

Question: 5

Which of the following is used on moulds for magnesium castings to prevent metal mould

(A) charcoal

(B) molasses

(C) boric sulphur

(D) all of the above