Chemical Engineering Basics Filler material used in welding having the lowest melting point out of the following is Soft solder Brazing spelter Aluminium Silver solder Soft solder Brazing spelter Aluminium Silver solder 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 Sufficient hydrogen present in the welding arc Retained austenite Martensite formation Relatively high sulphur content in the base metal Sufficient hydrogen present in the welding arc Retained austenite Martensite formation Relatively high sulphur content in the base metal ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of Its high heat transfer rate Low temperature encountered at high altitude Its higher co-efficient of performance (COP) Its low unit weight per ton of refrigeration Its high heat transfer rate Low temperature encountered at high altitude Its higher co-efficient of performance (COP) Its low unit weight per ton of refrigeration ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Powder metallurgy process does not make metal powder by Atomisation Grinding/milling Hammering Electrolytic deposition Atomisation Grinding/milling Hammering Electrolytic deposition ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Sub zero treatment of steel is done to Suppress martensite transformation Induce temper brittleness after its hardening Reduce the retained austenite in hardened steel Enhance its working performance in sub zero atmosphere Suppress martensite transformation Induce temper brittleness after its hardening Reduce the retained austenite in hardened steel Enhance its working performance in sub zero atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Maraging steels derive their strength from the following mechanism: 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 Fine dispersions of intermetallics of Fe, Ni, Ti etc ANSWER DOWNLOAD EXAMIANS APP
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