Refractory Technology Which of the following has the lowest electrical resistivity? Fireclay Graphite Zircon Alumina Fireclay Graphite Zircon Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Electrical resistor bars are made of Graphite Silicon carbide Zirconia Alumina Graphite Silicon carbide Zirconia Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic electric furnace is made of __________ bricks. Superduty fireclay Chromite None of these Silica Superduty fireclay Chromite None of these Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks with lower permeability is produced by using Finer grog size Higher firing temperature Higher moulding pressure All of these Finer grog size Higher firing temperature Higher moulding pressure All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Permeability of bricks is a measure of the Melting point Refractoriness Rate at which a fluid will pass through the pores Expansion during heating Melting point Refractoriness Rate at which a fluid will pass through the pores Expansion during heating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 50-100 500-1000 200-400 100-150 50-100 500-1000 200-400 100-150 ANSWER DOWNLOAD EXAMIANS APP
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