Refractory Technology Which is not an acidic refractory? Carbon black Silica High alumina refractory Fireclay Carbon black Silica High alumina refractory Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Chemically prepared foam Saw dust Cork Sand Chemically prepared foam Saw dust Cork Sand ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Low porosity High thermal conductivity Neither A nor B Both A & B Low porosity High thermal conductivity Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of refractories depends upon its Texture All of these Firing temperature Composition Texture All of these Firing temperature Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories are exclusively used in the Regenerators of coke oven Walls of coke oven Side wall of soaking pits Hearth of blast furnace Regenerators of coke oven Walls of coke oven Side wall of soaking pits Hearth of blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica between 1470°C and the melting point 1713°C ? Quartz Tridymite Cristobalite None of these Quartz Tridymite Cristobalite None of these ANSWER DOWNLOAD EXAMIANS APP
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