Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Corundum Silica Magnesite Fireclay Corundum Silica Magnesite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic electric furnace is made of __________ bricks. Superduty fireclay Chromite None of these Silica Superduty fireclay Chromite None of these Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Warming up Neither A nor B Cooling down Both A & B Warming up Neither A nor B Cooling down Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a neutral refractory? Chromite Silicon carbide Magnesite Graphite Chromite Silicon carbide Magnesite Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cermets are Used in space vehicles, missiles & nuclear energy plants All of these Composite material containing both ceramic & metallic constituents Having high strength & resistance to high temperature Used in space vehicles, missiles & nuclear energy plants All of these Composite material containing both ceramic & metallic constituents Having high strength & resistance to high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks has the most close values of RUL and PCE? Silica bricks Tar dolomite bricks High alumina bricks Fireclay bricks Silica bricks Tar dolomite bricks High alumina bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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