Refractory Technology To resist spalling tendency, a refractory should have Low specific heat Low thermal co-efficient of expansion All of these Greater diffusivity Low specific heat Low thermal co-efficient of expansion All of these Greater diffusivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite bricks are used in those parts of furnaces, which are Subjected to temperature fluctuation Required to resist corrosive basic slag Subjected to high load None of these Subjected to temperature fluctuation Required to resist corrosive basic slag Subjected to high load None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. High alumina Thoria Fireclay Silicon carbide High alumina Thoria Fireclay Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 70 30 90 50 70 30 90 50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Neither A nor B High thermal conductivity Low porosity Both A & B Neither A nor B High thermal conductivity Low porosity Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Sillimanite Magnesite Firebrick Aluminous firebrick Sillimanite Magnesite Firebrick Aluminous firebrick ANSWER DOWNLOAD EXAMIANS APP
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