Refractory Technology Firing of refractory brick is done to All of these Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory Develop stable mineral forms in them All of these Form ceramic bonds necessary for development of high crushing strength in the finished product Dehydrate the dried refractory Develop stable mineral forms in them ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following has the lowest electrical resistivity? Graphite Zircon Alumina Fireclay Graphite Zircon Alumina Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of Silicon carbide Fireclay Corrundum Siliceous fireclay Silicon carbide Fireclay Corrundum Siliceous fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have All of these Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases Poor heat conductivity & low strength All of these Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases Poor heat conductivity & low strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks At the hearth bottom of the furnace on which stock is placed None of these Used for furnace insulation Used in the roof of the furnace At the hearth bottom of the furnace on which stock is placed None of these Used for furnace insulation Used in the roof of the furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Chromite Carborundum Graphite Fireclay Chromite Carborundum Graphite Fireclay ANSWER DOWNLOAD EXAMIANS APP
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