Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Not required to resist the corrosive action of basic slag Both (b) and © Not subjected to fluctuation in temperature Used for raising & maintaining high temperature Not required to resist the corrosive action of basic slag Both (b) and © Not subjected to fluctuation in temperature Used for raising & maintaining high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Density Specific heat None of these Thermal conductivity Density Specific heat None of these Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours. 700 1000 1600 2000 700 1000 1600 2000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ °C. 1630 1670 1730 1520 1630 1670 1730 1520 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Si percentage in silica refractories used in the walls of coke oven is about 45 80 95 60 45 80 95 60 ANSWER DOWNLOAD EXAMIANS APP
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