Related Questions

Lower part of hot metal mixer are lined with __________ bricks.
A Superduty fireclay
B High alumina
C Silica
D Carborundum
Hot metal runner in blast furnace are lined with __________ bricks.
A Silica
B Carborundum
C Fireclay
D Magnesite
Hot face insulating linings of high purity alumina fused mullite are used, where
A Very high temperatures are involved
B Highly reducing conditions are involved
C Presence of iron or silica is harmful
D All of the above
A red house is built from red bricks . A blue house is built from blue bricks. A white house is built from white bricks. Then what is a greenhouse made from ?
A green bricks
B wood
C glass
D steel
The solid brick shown is made of small square shaped bricks of side 1. when the large brick is disassembled into its component small bricks. the total surface area of all the small bricks is how much greater than the surface area of the large brick?
A 32
B 40
C 60
D 72
In a mixer, the quantity, (v. L/D) is termed as __________ number(where, v = longitudinal velocity of material, L = length of the mixer, D = diffusivity in axial mixing).
A Weber
B Peclet
C Brinkman
D Schmidt
Mullite is chemically represented by
A Al2O3.2SiO2
B 3Al2O3.2SiO2
C Al2O3.SiO2
D 2Al2O3.3SiO2
Chemically, mullite refractories is
A 3Al2O3.2SiO2
B Al2O3
C ZrSO4
D ThO2
Coke oven walls are lined with __________ bricks.
A Silica
B Tar-dolomite
C Low thermal conductivity
D Fire clay
Outer combustion chamber of blast furnace stove is lined with __________ bricks.
A Fireclay
B Silica
C Chrome magnesite
D Zirconia

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