Chemical Engineering Basics 1% concentration of water vapor in air is equivalent to __________ ppm (parts per million). 100 1000 10 10000 100 1000 10 10000 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 In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following : Jet of water at high pressure Mixture of water and air Blast of air Rain of molten lead Jet of water at high pressure Mixture of water and air Blast of air Rain of molten lead ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Presence of small quantity of sulphur in low carbon steel improves its Weldability Formability Hardenarality Machinability Weldability Formability Hardenarality Machinability ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In a casting, cold shut defect is caused by Melt-mould reactions Very low mould permeability Faulty gating system Low pounhg temperature Melt-mould reactions Very low mould permeability Faulty gating system Low pounhg temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Cold cracking in the heat affected zone of a high strength steel weld can take place because of the Martensite formation Retained austenite Relatively high sulphur content in the base metal Sufficient hydrogen present in the welding arc Martensite formation Retained austenite Relatively high sulphur content in the base metal Sufficient hydrogen present in the welding arc ANSWER DOWNLOAD EXAMIANS APP
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