Refractory Technology Which of the following has the lowest electrical resistivity? Fireclay Graphite Zircon Alumina Fireclay Graphite Zircon Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. Fireclay 85% alumina Carbon Corundum Fireclay 85% alumina Carbon Corundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of a refractory does not depend upon its Texture Shape Composition Firing temperature Texture Shape Composition Firing temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have Poor heat conductivity & low strength Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases All of these Poor heat conductivity & low strength Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Resistance to slag attack of a refractory All of these Decreases at higher temperature Decreases, if defective joints & cracks exist in the refractory Depends on the nature of slag & refractory All of these Decreases at higher temperature Decreases, if defective joints & cracks exist in the refractory Depends on the nature of slag & refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks has the most close values of RUL and PCE? Silica bricks Fireclay bricks High alumina bricks Tar dolomite bricks Silica bricks Fireclay bricks High alumina bricks Tar dolomite bricks ANSWER DOWNLOAD EXAMIANS APP