Refractory Technology Refractory bricks having lower porosity have Low heat capacity Low thermal conductivity Greater strength High insulating properties Low heat capacity Low thermal conductivity Greater strength High insulating properties ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Higher moulding pressure Finer grog size Higher firing temperature All of these Higher moulding pressure Finer grog size Higher firing temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High resistance to spalling High refractoriness All of these High strength and density High resistance to spalling High refractoriness All of these High strength and density ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories Are not attacked by slags, as they are not wetted by melts Have extremely low thermal & electrical conductivities Do not burn/oxidise, when exposed to air on heating Do not resist temperature fluctuations Are not attacked by slags, as they are not wetted by melts Have extremely low thermal & electrical conductivities Do not burn/oxidise, when exposed to air on heating Do not resist temperature fluctuations ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chemically, mullite refractories is Al2O₃ 3Al2O₃.2SiO₂ ZrSO₄ ThO₂ Al2O₃ 3Al2O₃.2SiO₂ ZrSO₄ ThO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An indication of degree of firing in silica brick is its RUL Specific gravity Fusion point None of these RUL Specific gravity Fusion point None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS