Chemical Engineering Basics Castability of aluminium is increased by the addition of __________ in it. Silicon Bismuth Lead Manganese Silicon Bismuth Lead Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ is the hardest oxide and is hence used where high wear resistance at high temperature is required. Zirconia Beryllia Alumina Magnesia Zirconia Beryllia Alumina Magnesia ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C. 2400 2000 1800 3000 2400 2000 1800 3000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C. 959 723 1493 1147 959 723 1493 1147 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Maraging steels derive their strength from the following mechanism: Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of alloy carbides in a ferrite matrix A fine, highly dislocated and strong martensite Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of Fe₃ C nucleated on dislocations in austenite Fine dispersions of alloy carbides in a ferrite matrix A fine, highly dislocated and strong martensite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Powder metallurgy is used to produce Porosity free components Components of such alloys whose constituents do not form alloys readily High precision components with complex cavities and sharp features Components of large size Porosity free components Components of such alloys whose constituents do not form alloys readily High precision components with complex cavities and sharp features Components of large size ANSWER DOWNLOAD EXAMIANS APP
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