1000+ Foundry Technology MCQ Questions and Answers Pdf - 2

Question: 6

The principal ingredients of moulding sands are

(A) silica sand, carbon, hydrocarbons and moisture

(B) silica sand, dust and carbon

(C) silica sand, clay and water

(D) silica sand, carbon and water

Question: 7

Die casting is generally not used for

(A) aluminium base alloys

(B) cast iron

(C) non-ferrous metals

(D) zinc base alloys

Question: 8

Solidification time for riser should be

(A) more than that of the casting

(B) less than that of the casting

(C) same as that of the casting

(D) none of the options

Question: 9

The water content of green sand is usually

(A) 1 to 2 percent

(B) 6 to 8 percent

(C) 12 to 18 percent

(D) 20 to 25 percent

Question: 10

Pig iron is obtained from iron ore in a blast furnace by a process of

(A) carbonation

(B) desulfurization

(C) oxidation

(D) reduction