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
Coke
Question: 3
Chief source of sulphur in the blast furnace is
(A) Coke
(B) Iron ore
(C) Sinter
(D) Limestone
Ans: A
Coke
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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