Refractory Technology Colour of fireclay bricks is None of these Black Light buff to reddish buff Yellow None of these Black Light buff to reddish buff Yellow ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called Refractoriness None of these Refractoriness under load (RUL) Spalling resistance Refractoriness None of these Refractoriness under load (RUL) Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Semi-silica bricks compared to silica bricks have Neither A nor B Better spalling resistance Less fusion point Both A & B Neither A nor B Better spalling resistance Less fusion point Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Natural silica Mainly contains quartz Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Is not stable at high temperature Mainly contains quartz Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Is not stable at high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Panel test determines the __________ of refractories. Spalling resistance Fusion point Refractoriness under load (RUL) Slag penetration resistance Spalling resistance Fusion point Refractoriness under load (RUL) Slag penetration resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Quartz is Stable form of silica upto 870°C Converted to tridymite on firing between 870 to 1470°C All of these Transformed to crystoballite on heating above 1470°C Stable form of silica upto 870°C Converted to tridymite on firing between 870 to 1470°C All of these Transformed to crystoballite on heating above 1470°C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS