Refractory Technology Porosity of fireclay refractories is __________ percent. 25-35 43961 44129 35-50 25-35 43961 44129 35-50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks All of these Are acidic in nature Are wetted by molten iron Are used in the hearth of blast furnace All of these Are acidic in nature Are wetted by molten iron Are used in the hearth of blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are used in the Flues Chimney linings All of these Furnaces allowed to cool frequently Flues Chimney linings All of these Furnaces allowed to cool frequently ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are used in Both A & B Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Bottom of soaking pits Both A & B Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Bottom of soaking pits ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Shrinkage ability Fusion point Spalling rate None of these Shrinkage ability Fusion point Spalling rate None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Repairing construction of various furnace parts Both A & B Obtaining monolithic working faces Neither A nor B Repairing construction of various furnace parts Both A & B Obtaining monolithic working faces Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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