Chemical Engineering MCQs

A. Oxidising atmosphere
B. Reducing atmosphere
C. Electric furnace
D. Neutral atmosphere

A. Not required to resist the corrosive action of basic slag
B. Not subjected to fluctuation in temperature
C. Used for raising & maintaining high temperature
D. Both b. and c.

A. Fireclay
B. Silica
C. Chrome magnesite
D. Zirconia

A. Superduty fireclay
B. Silica
C. Chromite
D. None of these

A. Green strength
B. Voids
C. Shrinkage
D. Both b. and c.

A. 0
B. <1
C. 1
D. >1

A. Coke oven walls
B. Beehive coke ovens
C. Dome and upper portion of b.f. stoves
D. Open hearth furnace roof

A. 5 to 10
B. 20 to 30
C. 45 to 60
D. 60 to 75

A. Slide gate in teeming laddies
B. Continuous casting systems
C. Both a. and b.
D. Neither a. nor b.

A. Corundum
B. Carborundum
C. Bauxite
D. Periclase