Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. None of these Lime Acid Basic None of these Lime Acid Basic ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of Fireclay Corrundum Silicon carbide Siliceous fireclay Fireclay Corrundum Silicon carbide Siliceous fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 60 and 40 80 and 20 20 and 80 50 and 50 60 and 40 80 and 20 20 and 80 50 and 50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >1350 500 1000 >2000 >1350 500 1000 >2000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Natural silica Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Is not stable at high temperature Mainly contains quartz Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Is not stable at high temperature Mainly contains quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hollow refractory bricks are made by Extrusion Slip casting Pressing/machine moulding Hand moulding Extrusion Slip casting Pressing/machine moulding Hand moulding ANSWER DOWNLOAD EXAMIANS APP
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