Refractory Technology Porosity of fireclay refractories is __________ percent. 43961 35-50 25-35 44129 43961 35-50 25-35 44129 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 All of these Are used in outer lining of L.D. converters Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration All of these Are used in outer lining of L.D. converters ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called None of these Refractoriness under load (RUL) Spalling resistance Refractoriness None of these Refractoriness under load (RUL) Spalling resistance Refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Fireclay Silica Dolomite Very low alumina Fireclay Silica Dolomite Very low alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have High porosity Low thermal conductivity Both A & B Neither A nor B High porosity Low thermal conductivity Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its Non-wetting characteristic None of these High thermal conductivity High crushing strength Non-wetting characteristic None of these High thermal conductivity High crushing strength ANSWER DOWNLOAD EXAMIANS APP
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