Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Lowers Increases Does not affect Either A or B; depends on its quantity Lowers Increases Does not affect Either A or B; depends on its quantity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage? Fireclay bricks Tar bonded dolomite bricks Magnesite bricks Mullite bricks Fireclay bricks Tar bonded dolomite bricks Magnesite bricks Mullite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 44129 43961 35-50 25-35 44129 43961 35-50 25-35 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 800-1000 2400-2600 1600-1800 1000-1200 800-1000 2400-2600 1600-1800 1000-1200 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Zinc roaster Beehive oven Coke oven walls Lead blast furnace Zinc roaster Beehive oven Coke oven walls Lead blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 500 100 10 1000 500 100 10 1000 ANSWER DOWNLOAD EXAMIANS APP
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