Refractory Technology Basic bricks are not made of Fireclay Magnesite Foresterite Chromite Fireclay Magnesite Foresterite Chromite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a high alumina refractory material? Sillimanite Kyanite Periclase Diaspore Sillimanite Kyanite Periclase Diaspore ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C All of these Transformed to crystoballite on heating above 1470°C Converted to tridymite on firing between 870 to 1470°C Stable form of silica upto 870°C All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories have very high Thermal conductivity Wetting characteristics Refractoriness Both B and C Thermal conductivity Wetting characteristics Refractoriness Both B and C 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? Saw dust Sand Cork Chemically prepared foam Saw dust Sand Cork Chemically prepared foam ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 250 65 450 150 250 65 450 150 ANSWER DOWNLOAD EXAMIANS APP
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