Refractory Technology Which of the following has the lowest electrical resistivity? Fireclay Zircon Alumina Graphite Fireclay Zircon Alumina Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a High spalling resistance Low spalling resistance High resistance to fusion Low porosity High spalling resistance Low spalling resistance High resistance to fusion Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >2000 1000 >1350 500 >2000 1000 >1350 500 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 45 to 60 20 to 30 60 to 75 5 to 10 45 to 60 20 to 30 60 to 75 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Basic bricks are not made of Magnesite Fireclay Chromite Foresterite Magnesite Fireclay Chromite Foresterite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Washing action of metal Neither A nor B Corrosion by layer of slag Both A & B Washing action of metal Neither A nor B Corrosion by layer of slag Both A & B ANSWER DOWNLOAD EXAMIANS APP
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