Refractory Technology Tar bonded dolomite bricks Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters All of these Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters All of these 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? Water Aluminium phosphate Lime Plaster of paris Water Aluminium phosphate Lime Plaster of paris 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. 270 770 570 70 270 770 570 70 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. None of these Density Specific heat Thermal conductivity None of these Density Specific heat Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly MgO SiO₂ Al2O₃ CaO MgO SiO₂ Al2O₃ CaO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not an alumino-silicate refractory? Fireclay bricks Tar dolomite bricks High alumina bricks Mullite bricks Fireclay bricks Tar dolomite bricks High alumina bricks Mullite bricks ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS