Materials and Construction As the impurities are oxidised, the melting point of iron May increase or decrease ; unpredictable Remains unchanged Decreases Increases May increase or decrease ; unpredictable Remains unchanged Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction 'Semi steel' is Neither A nor B Produced by adding 10-20% steel to the cupola charge Stronger than cast iron Both A & B Neither A nor B Produced by adding 10-20% steel to the cupola charge Stronger than cast iron Both A & B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of Lead lined steel Stainless steel Rubber lined steel Cast iron Lead lined steel Stainless steel Rubber lined steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cementite is A compound of carbon and iron All of these Fe₃C chemically Characterised by an orthorhombic crystal structure A compound of carbon and iron All of these Fe₃C chemically Characterised by an orthorhombic crystal structure ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Hardest material so far found is Graphite Carborundum Diamond Pumice stone Graphite Carborundum Diamond Pumice stone ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Aqueous nitric acid is stored in Cast iron vessel Cast iron vessel lined with acid-proof masonry brick Steel drum Stainless steel vessel Cast iron vessel Cast iron vessel lined with acid-proof masonry brick Steel drum Stainless steel vessel ANSWER DOWNLOAD EXAMIANS APP
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