Refractory Technology Ferromagnetic ceramic material is not used in the Thermal insulation Magnetic switches Television sets Transformers Thermal insulation Magnetic switches Television sets Transformers ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Zirconia Magnesia Thoria Alumina Zirconia Magnesia Thoria Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology To resist spalling tendency, a refractory should have All of these Greater diffusivity Low specific heat Low thermal co-efficient of expansion All of these Greater diffusivity Low specific heat Low thermal co-efficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling resistance of a refractory can not be increased by 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 Using a coarser grog during its manufacture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar dolomite bricks are used in the Electric furnaces Basic Bessemer converter Basic open hearth furnace All of these Electric furnaces Basic Bessemer converter Basic open hearth furnace All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite brick is not used for lining the Hearth of soaking pits Coke oven regenerator Bottom hearth of reheating furnace Burning zone of limestone rotary kilns Hearth of soaking pits Coke oven regenerator Bottom hearth of reheating furnace Burning zone of limestone rotary kilns ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS