Refractory Technology Porosity of silica bricks varies from __________ percent. 5 to 10 60 to 75 45 to 60 20 to 30 5 to 10 60 to 75 45 to 60 20 to 30 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ferromagnetic ceramic material is not used in the Magnetic switches Thermal insulation Transformers Television sets Magnetic switches Thermal insulation Transformers Television sets ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. > 1730 1630-1670 > 2000 1520-1630 > 1730 1630-1670 > 2000 1520-1630 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 __________ bricks should not be used in oxidising atmosphere. Tar dolomite Carbon Silica Fireclay Tar dolomite Carbon Silica Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not an acidic refractory? Silica Fireclay High alumina refractory Carbon black Silica Fireclay High alumina refractory Carbon black ANSWER DOWNLOAD EXAMIANS APP
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