Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Thermal conductivity Specific heat Density None of these Thermal conductivity Specific heat Density None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a High spalling resistance High resistance to fusion Low spalling resistance Low porosity High spalling resistance High resistance to fusion Low spalling resistance Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent. 90 70 80 55 90 70 80 55 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant? Soaking pits Rotary lime kiln L.D. converter Ceheating furnace Soaking pits Rotary lime kiln L.D. converter Ceheating furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. 1520-1630 > 1730 1630-1670 > 2000 1520-1630 > 1730 1630-1670 > 2000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Strength Thermal conductivity None of these Spalling resistance Strength Thermal conductivity None of these Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
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