Refractory Technology An indication of degree of firing in silica brick is its Fusion point RUL None of these Specific gravity Fusion point RUL None of these Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite bricks are Neutral in nature Acidic in nature Made by mixing 30% chromite and 70% periclase Having higher RUL than silica bricks Neutral in nature Acidic in nature Made by mixing 30% chromite and 70% periclase Having higher RUL than silica bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories May increase or decrease Remains same Decreases Increases May increase or decrease Remains same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Electrical resistor bars are made of Silicon carbide Graphite Alumina Zirconia Silicon carbide Graphite Alumina Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. 1520-1630 > 1730 > 2000 1630-1670 1520-1630 > 1730 > 2000 1630-1670 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories Are not resistant to the action of basic slags All of these Shrink during firing Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc Are not resistant to the action of basic slags All of these Shrink during firing Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc ANSWER DOWNLOAD EXAMIANS APP
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