Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Not required to resist the corrosive action of basic slag Not subjected to fluctuation in temperature Both (b) and © Used for raising & maintaining high temperature Not required to resist the corrosive action of basic slag Not subjected to fluctuation in temperature Both (b) and © Used for raising & maintaining high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low None of these Thermal conductivity Refractoriness (< 1700°C) Resistance to thermal shock None of these Thermal conductivity Refractoriness (< 1700°C) Resistance to thermal shock ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mixing of ground refractory material and water is done in a __________ mill. Tube Ball Rod Pug Tube Ball Rod Pug ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. Carbon Fireclay 85% alumina Corundum Carbon Fireclay 85% alumina Corundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling of a refractory means its Fracture due to uneven expansion at high temperature Resistance to chemical action of gases and molten fluxes Softening Resistancce to compressive loads Fracture due to uneven expansion at high temperature Resistance to chemical action of gases and molten fluxes Softening Resistancce to compressive loads ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS