A. Slip casting
B. Hand moulding
C. pressing/machine moulding
D. Extrusion
Hollow refractory bricks are made by___________________? Read More »
Refractory Technology A. Buckstay
B. Breast wall
C. Armouring
D. Baffle
A. Fireclay
B. Magnesite
C. Forsterite
D. Chromite
Basic bricks are not made of ___________________? Read More »
Refractory Technology 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
Magnesite bricks are used in those parts of furnaces, which are __________________? Read More »
Refractory Technology A. Beehive oven
B. Coke oven walls
C. Zinc roaster
D. Lead blast furnace
Fireclay bricks are never used in the______________? Read More »
Refractory Technology 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.
Resistance to slag attack of a refractory _____________________? Read More »
Refractory Technology A. Fireclay bricks
B. Mullite bricks
C. Tar dolomite bricks
D. High alumina bricks
Which is not an alumino-silicate refractory ? Read More »
Refractory Technology A. Specific gravity
B. Fusion point
C. RUL
D. None of these
An indication of degree of firing in silica brick is its____________________? Read More »
Refractory Technology