Refractory Technology Thermal conductivity of refractory bricks Increases with the amount of air entrapped in pores Is independent of its porosity and is maximum for insulating bricks Increases with decrease in porosity Decreases with decreases in porosity Increases with the amount of air entrapped in pores Is independent of its porosity and is maximum for insulating bricks Increases with decrease in porosity Decreases with decreases in porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Carborundum Corrundum Periclase Bauxite Carborundum Corrundum Periclase Bauxite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 500 10 100 1000 500 10 100 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bottom of basic open hearth furnace are constructed of Porous fireclay bricks Dead burnt magnesite ramming mass Silicon carbide bricks Semi-silica bricks Porous fireclay bricks Dead burnt magnesite ramming mass Silicon carbide bricks Semi-silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are not used in the Beehive coke oven Combustion chamber of B.F. stoves By-product coke oven walls Coke oven regenerators Beehive coke oven Combustion chamber of B.F. stoves By-product coke oven walls Coke oven regenerators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Silicon carbide High alumina Fireclay Thoria Silicon carbide High alumina Fireclay Thoria ANSWER DOWNLOAD EXAMIANS APP
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