Iron Making in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

A. 15

B. 25

C. 35

D. negligible

A. P-3, Q-1, R-2, S-4

B. P-4, Q-2, R-1, S-3

C. P-1, Q-3, R-2, S-4

D. P-4, Q-3, R-2, S-1

A. P, Q

B. P, R

C. R, S

D. Q, S

A. counter-current reactor

B. co-current reactor

C. cross-current reactor

D. combination of all the three

A. shape

B. swelling tendency

C. poor reducibility

D. low mechanical strength

A. large mass of that material gets stuck to the furnace wall

B. excessive blast pressure resulting in counteracting the downward movement of stock

C. both A and B above

D. none of these

A. FeS₂

B. Fe₂O₃

C. Fe₂O₄

D. FeO

A. pig-iron

B. slag

C. gas

D. dust particles

A. in the blast furnace shaft

B. during pretreatment of hot metal

C. in the LD process

D. during deoxidation in the ladle

A. 2 - 3%

B. 5 - 6%

C. 3 - 6%

D. 6 - 10%