7000+ Foundry Metallurgy MCQ Questions and Answers - 2

Question: 6

Cast iron and steel pipes are cast by the _____ casting.

(A) continuous

(B) die

(C) true centrifugal

(D) investment

Question: 7

The use of _____ enhances the efficiency of riser.

(A) chaplcts

(B) chills

(C) bottom gate

(D) none of these

Question: 8

Addition of _____ is done to achieve grain refinement of aluminium metal.

(A) boron

(B) chromium

(C) titanium

(D) sodium

Question: 9

Mould made of _____ is used in centrifugal casting.

(A) metal

(B) frozen mercury

(C) wax

(D) plaster of paris