Steel Making in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

A. The temperature of L.D. furnace is maintained at around 1600°C

B. The basicity of slag is maintained at around unity

C. Dephosphorisation and decarburisation should proceed simultaneously

D. High silicon hot metal may lead to sloping

A. CaO, because Ca²⁺ ions are oxidising to the elements

B. CaO, because O^2- ions are oxidising to the elements

C. FeO, because Fe²⁺ ions are oxidising to the elements

D. FeO, because O^2- ions are oxidising to the elements

A. Plain carbon steel

B. Clean steel

C. Alloy steel

D. None of these

A. a is false but r is true

B. a is true but r is false

C. a is true and r is also true, but r is not the reason for a

D. a is true and r is also true, and r is the reason for a

A. Higher strength

B. Lesser corrosion resistance

C. Poor machinability

D. All are correct

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

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

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

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

A. 18% nickel and 8% chromium

B. 18% chromium and 8% nickel

C. 18% nickel and 18% chromium

D. 8% nickel and 8% chromium

A. Silicon, manganese, aluminium

B. aluminium, manganese, silicon

C. manganese, silicon, aluminium

D. aluminium, silicon, maganese

A. water cooled steel

B. water cooled copper

C. refractory oxide

D. silicon carbide

A. axles

B. shafts

C. connecting rods

D. all are correct