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
Ans: C
gypsum cement
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
Ans: D
repairing and finishing of mould
Question: 3
Chaplets are made of
(A) metal
(B) wood
(C) organic matter
(D) core sand
Ans: A
metal
Question: 4
Which of the following is very powerful carbide former in cast iron?
(A) vanadium
(B) chromium
(C) nickel
(D) silicon
Ans: A
vanadium
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
Ans: C
boric sulphur
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