Refractory Technology Refractories are dried in the Sun None of these Rotary kilns Tunnel kilns Sun None of these Rotary kilns Tunnel kilns ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 80-85 55-60 >94 35-40 80-85 55-60 >94 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Strength Spalling resistance Thermal conductivity None of these Strength Spalling resistance Thermal conductivity None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Silica bricks Sillimanite Silicon carbide bricks Firebricks Silica bricks Sillimanite Silicon carbide bricks Firebricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called Spalling resistance Refractoriness under load (RUL) None of these Refractoriness Spalling resistance Refractoriness under load (RUL) None of these Refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Fireclay bricks Both A & B Neither A nor B Silica bricks Fireclay bricks Both A & B Neither A nor B Silica bricks ANSWER DOWNLOAD EXAMIANS APP
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