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. 70 90 80 55 70 90 80 55 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C. 70 270 570 770 70 270 570 770 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant? Soaking pits Ceheating furnace Rotary lime kiln L.D. converter Soaking pits Ceheating furnace Rotary lime kiln L.D. converter ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material? Plaster of paris Lime Aluminium phosphate Water Plaster of paris Lime Aluminium phosphate Water 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 'Spinel', a refractory mineral is chemically represented as MgAl2O₄ MgAl2O₃.2H₂O MgSO₄ MgAl2O₃ MgAl2O₄ MgAl2O₃.2H₂O MgSO₄ MgAl2O₃ ANSWER DOWNLOAD EXAMIANS APP
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