7000+ Steel Making in Metallurgy MCQ Questions and Answers - 2

Question: 6

Nose angle of LD. converter is

(A) 37°

(B) 47°

(C) 57°

(D) 67°

Question: 7

Which steel making process can take up maximum metal charge as scrap?

(A) L.D. process

(B) Kaldo furnace

(C) Electric furnace process

(D) Acid Bessemer process

Question: 8

Which is the flux normally added in LD. converter for early formation of slag?

(A) Limestone

(B) Lime

(C) Dolomite

(D) Iron scrap

Question: 9

The main drawback of LD. process is the

(A) High refractory consumption

(B) Lower steel yield

(C) Slopping tendency

(D) Lack of homogenisation in bath w.r.t. its carbon content and temperature due to inadequate mixing

Question: 10

Sulphur occurs in steel as

(A) FeS

(B) MnS

(C) Both a and b

(D) Neither a nor b