Iron Making Metallurgy Engineering Quiz Questions - 2

Question: 6

Ingot mould is coated with tar to

(A) Accelerate deoxidation of steel

(B) Accelerate the rate of solidification

(C) Avoid the sticking of ingot to the mould

(D) Produce killed steel

Question: 7

Slag is

(A) Molten oxide product of smelting

(B) Heavier than iron

(C) Always acidic in nature

(D) Always basic in nature

Question: 8

Acidic iron is produced in the blast furnace (by maintaining highly basic slag), which is rich in

(A) Manganese

(B) Silicon

(C) Sulphur

(D) Phosphorous

Question: 9

Permanent lining in L.D. converters is of _____ bricks.

(A) Silica

(B) Fireclay

(C) Magnesite

(D) Tar dolomite

Question: 10

Siderite is the _____ ore of iron.

(A) Sulphate

(B) Sulphide

(C) Oxide

(D) Carbonate