Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Sand Saw dust Chemically prepared foam Cork Sand Saw dust Chemically prepared foam Cork ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ferromagnetic ceramic material is not used in the Television sets Magnetic switches Thermal insulation Transformers Television sets Magnetic switches Thermal insulation Transformers ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Basic bricks are not made of Magnesite Fireclay Foresterite Chromite Magnesite Fireclay Foresterite Chromite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The largest consumer of refractories is the __________ industry. Power Fertiliser Metallurgical Cement Power Fertiliser Metallurgical Cement ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one expands on heating? Silica bricks Fireclay bricks Neither A nor B Both A & B Silica bricks Fireclay bricks Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. > 2000 > 1730 1630-1670 1520-1630 > 2000 > 1730 1630-1670 1520-1630 ANSWER DOWNLOAD EXAMIANS APP
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