Refractory Technology Refractories are dried in the Tunnel kilns Rotary kilns Sun None of these Tunnel kilns Rotary kilns Sun None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Increased thermal conductivity of brick None of these Oxidising condition in the furnace Decreased viscosity of slag Increased thermal conductivity of brick None of these Oxidising condition in the furnace Decreased viscosity of slag ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 0.5 3.5 1 2 0.5 3.5 1 2 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have Both A & B Neither A nor B Low thermal conductivity High porosity Both A & B Neither A nor B Low thermal conductivity High porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains maximum percentage of Al2O₃ ? Sillimanite Aluminous firebrick Magnesite Firebrick Sillimanite Aluminous firebrick Magnesite Firebrick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Powdered naphthalene Ammonium chloride/sulphate Calcium phosphate All of these Powdered naphthalene Ammonium chloride/sulphate Calcium phosphate All of these ANSWER DOWNLOAD EXAMIANS APP
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