Refractory Technology Colour of fireclay bricks is Yellow Black Light buff to reddish buff None of these Yellow Black Light buff to reddish buff None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its Non-wetting characteristic None of these High crushing strength High thermal conductivity Non-wetting characteristic None of these High crushing strength High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? All of these SiO₂ CaO Al2O₃ All of these SiO₂ CaO Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Corrundum Bauxite Carborundum Periclase Corrundum Bauxite Carborundum Periclase ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling resistance of a refractory can not be increased by Using a coarser grog during its manufacture Making it denser Decreasing its thermal co-efficient of expansion Increasing its porosity Using a coarser grog during its manufacture Making it denser Decreasing its thermal co-efficient of expansion Increasing its porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Recuperators Muffle furnace Coke oven regenarators Blast furnace Recuperators Muffle furnace Coke oven regenarators Blast furnace ANSWER DOWNLOAD EXAMIANS APP
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