Refractory Technology Chromite refractories are used in Bottom of soaking pits Neither A nor B Both A & B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Bottom of soaking pits Neither A nor B Both A & B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 55-60 80-85 >94 35-40 55-60 80-85 >94 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Sillimanite is a __________ refractory. Insulating Basic Neutral High alumina Insulating Basic Neutral High alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increasing alumina content, the fusion point of high alumina refractories Increases Decreases May increase or decrease ; depends on its alumina content Remains constant Increases Decreases May increase or decrease ; depends on its alumina content Remains constant ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Thoria Fireclay Silicon carbide High alumina Thoria Fireclay Silicon carbide High alumina ANSWER DOWNLOAD EXAMIANS APP
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