A. Refractoriness
B. Melting point
C. Rate at which a fluid will pass through the pores
D. Expansion during heating
Related Mcqs:
- Refractory bricks with lower permeability is produced by using __________________?
A. Higher firing temperature
B. Higher moulding pressure
C. Finer grog size
D. All A., B. and C. - Semi-silica bricks compared to silica bricks have_______________?
A. Less fusion point
B. Better spalling resistance
C. Both A. and B.
D. Neither A. not B. - Chrome magnesite bricks are used in the_________________?
A. Side walls of soaking pits and arc furnaces
B. Copper melting furnaces & converters
C. Burner block of glass tanks
D. All A., B. and C. - Carbon bricks are not used in the lining of the_________________?
A. Combustion chamber of blast furnace stoves
B. Electric furnaces
C. Highly chemical resistant equipments
D. Blast furnace hearth - Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the_________________?
A. Washing action of metal
B. Corrosion by layer of slag
C. Both A. & B.
D. Neither A. nor B. - Tar dolomite bricks are used in the_________________?
A. Basic Bessemer converter
B. Basic open hearth furnace
C. Electric furnaces
D. All A., B. and C. - Basic bricks are not made of ___________________?
A. Fireclay
B. Magnesite
C. Forsterite
D. Chromite - Outer combustion chamber of blast furnace stove is lined with _____________ bricks?
A. Fireclay
B. Silica
C. Chrome magnesite
D. Zirconia - Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for _____________ bricks?
A. Fireclay
B. Silica
C. Dolomite
D. Very low alumina - Pure oxide refractories are generally monocrystalline in nature and are self bonded _______________ bricks are generally used as moderator in nuclear reactors?
A. Beryllia
B. Carborundum
C. Corundum
D. Thoria
