Refractory Technology Which one expands on heating? Silica bricks Both A & B Neither A nor B Fireclay bricks Silica bricks Both A & B Neither A nor B Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Recuperators Coke oven regenarators Muffle furnace Blast furnace Recuperators Coke oven regenarators Muffle furnace Blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 100 10 500 1000 100 10 500 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 3.5 1 2 0.5 3.5 1 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which brick undergoes maximum shrinkage on drying? Tar bonded dolomite bricks Fireclay bricks Magnesite bricks Chromite bricks Tar bonded dolomite bricks Fireclay bricks Magnesite bricks Chromite bricks 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? Cork Chemically prepared foam Saw dust Sand Cork Chemically prepared foam Saw dust Sand ANSWER DOWNLOAD EXAMIANS APP
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