Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Silica bricks Sillimanite Silicon carbide bricks Firebricks Silica bricks Sillimanite Silicon carbide bricks Firebricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 1000 10 100 500 1000 10 100 500 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have High spalling resistance Low co-efficient of expansion All of these High RUL (1600°C) and refractoriness (> 2000°C) High spalling resistance Low co-efficient of expansion All of these High RUL (1600°C) and refractoriness (> 2000°C) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is not a single oxiderefractory. Silicon carbide Magnesia None of these Zirconia Silicon carbide Magnesia None of these Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Spalling resistance Resistance to carbon monoxide attack Resistance to slag penetration Fusion point Spalling resistance Resistance to carbon monoxide attack Resistance to slag penetration Fusion point ANSWER DOWNLOAD EXAMIANS APP
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