Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. 1630-1670 1520-1630 > 2000 > 1730 1630-1670 1520-1630 > 2000 > 1730 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Finer grog size Higher firing temperature All of these Higher moulding pressure Finer grog size Higher firing temperature All of these Higher moulding pressure ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is ZrSO₄ Crystalline form of MgO Amorphous magnesite MgCO₃ ZrSO₄ Crystalline form of MgO Amorphous magnesite MgCO₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Basic bricks are not made of Chromite Foresterite Fireclay Magnesite Chromite Foresterite Fireclay Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Oxidising condition in the furnace Decreased viscosity of slag None of these Increased thermal conductivity of brick Oxidising condition in the furnace Decreased viscosity of slag None of these Increased thermal conductivity of brick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Fireclay Silicon carbide High alumina Thoria Fireclay Silicon carbide High alumina Thoria ANSWER DOWNLOAD EXAMIANS APP
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