Metallurgy Engineering Iron Making, Steel Making MCQ Questions - 1

Question: 1

The output of a blast furnace is limited by the

(A) Maximum hearth temperature attainable

(B) Top pressure mainly

(C) Hot blast temperature mainly

(D) Appearance of flooding in the bosh

Ans: D

Appearance of flooding in the bosh

Question: 2

Permeability of the charge in the bosh region of the blast furnace is maintained by

(A) Limestone flux

(B) Iron ore

(C) Coke

(D) Sinter

Ans: C


Question: 3

Chief source of sulphur in the blast furnace is

(A) Coke

(B) Iron ore

(C) Sinter

(D) Limestone

Ans: A


Question: 4

Finest dust particles present in blast furnace gas is removed by a/an

(A) Hydrocyclone

(B) Electrostatic precipitator

(C) Dust catcher

(D) Wet scrubber

Ans: B

Electrostatic precipitator

Question: 5

Which of the following technologies has the least effect on the coke rate reduction in the blast furnace?

(A) Increase in top pressure

(B) Coal dust injection in blast furnace

(C) Oxygen enrichment of blast

(D) Reduction in ash content in coke

Ans: C

Oxygen enrichment of blast

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