Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 14-20 7-12 5-7 2-3 14-20 7-12 5-7 2-3 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling tendency of refractories is reduced by increasing its Specific gravity Strength Thermal conductivity Porosity Specific gravity Strength Thermal conductivity Porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have All of these Low co-efficient of expansion High spalling resistance High RUL (1600°C) and refractoriness (> 2000°C) All of these Low co-efficient of expansion High spalling resistance High RUL (1600°C) and refractoriness (> 2000°C) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not an acidic refractory? Carbon black Fireclay Silica High alumina refractory Carbon black Fireclay Silica High alumina refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of a refractory does not depend upon its Composition Texture Shape Firing temperature Composition Texture Shape Firing temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity). Carborundum Graphite Fireclay Chromite Carborundum Graphite Fireclay Chromite ANSWER DOWNLOAD EXAMIANS APP
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