Refractory Technology

A. 1520-1630
B. 1630-1670
C. > 1730
D. > 2000

A. Slip casting
B. Hand moulding
C. pressing/machine moulding
D. Extrusion

A. Buckstay
B. Breast wall
C. Armouring
D. Baffle

A. Fireclay
B. Magnesite
C. Forsterite
D. Chromite

A. 1520
B. 1630
C. 1670
D. 1730

A. Coke oven regenerators
B. Muffle furnace
C. Blast furnace
D. Recuperators

A. Subjected to temperature fluctuation
B. Required to resist corrosive basic slag
C. Subjected to high load
D. None of these

A. Beehive oven
B. Coke oven walls
C. Zinc roaster
D. Lead blast furnace

A. Depends on the nature of slag & refractory
B. Decreases at higher temperature
C. Decreases, if defective joints & cracks exist in the refractory
D. All A., B. and C.

A. Fireclay bricks
B. Mullite bricks
C. Tar dolomite bricks
D. High alumina bricks