Related Questions

Semi-silica bricks compared to silica bricks have
A Less fusion point
B Better spalling resistance
C Both A & B
D Neither A nor B
Increasing the original price of an item by 15 percent and then increasing the new price by another 15 percent is equivalent to increasing the original price by
A 32.25%
B 31.00%
C 30.25%
D 35.54%
Increasing the original price of an article by 15 percent and then increasing the new price by 15 percent is equivalent to increasing the original price by --
A 32.25%
B 31.00%
C 30.25%
D 30.00%
Increasing the original price of an article by 15 percent and then increasing the new price by 15 percent is equivalent to increasing the original price by ---
A 32.25%
B 31.00%
C 30.25%
D 30.00%
Percentage content of silica in window glass, is
A 40 to 45
B 50 to 55
C 60 to 65
D 70 to 75
Percentage of silica in a good brick earth lies between
A 5 to 10%
B 20 to 30%
C 50 to 60%
D 70 to 80%
The percentage of alumina and silica in good fire clay vary respectively is
A 25, 75
B 30, 70
C 35, 65
D All of these
Use of higher percentage of lime for bonding silica bricks, reduces their
A Strength
B Abrasion resistance
C Both A & B
D Neither A nor B
Si percentage in silica refractories used in the walls of coke oven is about
A 45
B 60
C 80
D 95
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
A Carbide, ceramic, cermet, borazon
B Ceramic, carbide, borazon, cermet
C Cermet, carbide, ceramic, borazon
D Borazon, ceramic, carbide, cermet

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