Refractory Technology Tar bonded dolomite bricks Are used in outer lining of L.D. converters Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks All of these Are used in outer lining of L.D. converters Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 70 90 50 30 70 90 50 30 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Neither A nor B Both A & B Cooling down Warming up Neither A nor B Both A & B Cooling down Warming up ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories are dried in the None of these Sun Tunnel kilns Rotary kilns None of these Sun Tunnel kilns Rotary kilns ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 45 to 60 5 to 10 60 to 75 20 to 30 45 to 60 5 to 10 60 to 75 20 to 30 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. Basic Acid None of these Lime Basic Acid None of these Lime ANSWER DOWNLOAD EXAMIANS APP
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