Refractory Technology Which of the following bricks has the most close values of RUL and PCE? Tar dolomite bricks Fireclay bricks High alumina bricks Silica bricks Tar dolomite bricks Fireclay bricks High alumina bricks Silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material? Lime Aluminium phosphate Water Plaster of paris Lime Aluminium phosphate Water Plaster of paris ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks have low spalling resistance below 600°C, due to its Low refractoriness Very high thermal conductivity High co-efficient of expansion upto this temperature High thermal diffusivity Low refractoriness Very high thermal conductivity High co-efficient of expansion upto this temperature High thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 5-7 14-20 7-12 2-3 5-7 14-20 7-12 2-3 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns. 2200 1800 2400 2700 2200 1800 2400 2700 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks Are used in the hearth of blast furnace All of these Are wetted by molten iron Are acidic in nature Are used in the hearth of blast furnace All of these Are wetted by molten iron Are acidic in nature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS