Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 14-20 2-3 5-7 7-12 14-20 2-3 5-7 7-12 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog Contains both alumina and silica Iscrushed firebrick Is a non-plastic material All of these Contains both alumina and silica Iscrushed firebrick Is a non-plastic material All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Test piece for determination of RUL of a refractory is heated in a/an Reducing atmosphere Oxidising atmosphere Neutral atmosphere Electric furnace Reducing atmosphere Oxidising atmosphere Neutral atmosphere Electric furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Less fusion point Both A & B Better spalling resistance Neither A nor B Less fusion point Both A & B Better spalling resistance Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are never used for lining the Roof of open hearth furnace Beehive coke ovens By-product coke ovens Dome of blast furnace stoves Roof of open hearth furnace Beehive coke ovens By-product coke ovens Dome of blast furnace stoves ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Resistance to slag attack of a refractory Decreases, if defective joints & cracks exist in the refractory Depends on the nature of slag & refractory Decreases at higher temperature All of these Decreases, if defective joints & cracks exist in the refractory Depends on the nature of slag & refractory Decreases at higher temperature All of these ANSWER DOWNLOAD EXAMIANS APP
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