Chemical Engineering Basics If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase. Nucleate boiling Convection Conduction Radiation Nucleate boiling Convection Conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Boiler draught of 10 mm water column is equivalent to 10 kgf/m² 10 kgf/mm² 1 kgf/m² 1 kgf/mm² 10 kgf/m² 10 kgf/mm² 1 kgf/m² 1 kgf/mm² ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Out of the following, the joint produced by __________ has the lowest strength. Brazing Rivetting Welding Soldering Brazing Rivetting Welding Soldering ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Tempering of a material does not improve its Machinability Internal stress level Toughness Softness Machinability Internal stress level Toughness Softness 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 alloy carbides in a ferrite matrix Fine dispersions of Fe₃ C nucleated on dislocations in austenite A fine, highly dislocated and strong martensite Fine dispersions of intermetallics of Fe, Ni, Ti etc Fine dispersions of alloy carbides in a ferrite matrix Fine dispersions of Fe₃ C nucleated on dislocations in austenite A fine, highly dislocated and strong martensite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of Its high heat transfer rate Its low unit weight per ton of refrigeration Low temperature encountered at high altitude Its higher co-efficient of performance (COP) Its high heat transfer rate Its low unit weight per ton of refrigeration Low temperature encountered at high altitude Its higher co-efficient of performance (COP) ANSWER DOWNLOAD EXAMIANS APP
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