Chemical Engineering MCQs

A. Walking beam reheating furnace
B. Reverberatory furnace
C. Tower furnace
D. Tunnel kiln

A. Preheating the combustion air
B. Oxygen enrichment of combustion air
C. Preheating the fuel gas
D. All a., b. & c.

A. Premix
B. Outside mixing type
C. Rotary
D. Diffusion

A. Thermal efficiency of the process
B. Sources of heat losses
C. Scope of reduction of heat losses
D. All a., b. and c.

A. Fans
B. Arrangement of heating stock in the furnaces
C. Location of outlet ports and heating & combustion devices
D. All a., b. and c.

A. < 2
B. < 5
C. < 8
D. < 10

A. Low reactivity of carbonised residue containing high proportion of iron & sulphur
B. Low forced draft & fuel bed temperature
C. Thick firebed and preheated primary air
D. All a., b. and c.

A. Rotary kiln
B. Tunnel kiln
C. Natural draft furnace
D. Batch furnace

A. Coke oven
B. Blast furnace stoves
C. Beehive coke oven
D. High pressure boiler

A. Roasting/reduction of ores
B. Annealing steel coil
C. Heating air
D. Steel melting