Chemical Engineering Basics Rain drops falling through atmospheric air attain limited terminal velocity, because of Upward thrust due to air Viscous force exerted by air Force of gravity Surface tension effects of water Upward thrust due to air Viscous force exerted by air Force of gravity Surface tension effects of water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system. Pulverised fuel Circulating fluidised bed Fluidised bed Travelling grate stoker firing Pulverised fuel Circulating fluidised bed Fluidised bed Travelling grate stoker firing ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics During sensible cooling of air, its wet bulb temperature Increases & the dew point decreases Decreases & the dew point increases Decreases but dew point remains constant Increases but dew point remains constant Increases & the dew point decreases Decreases & the dew point increases Decreases but dew point remains constant Increases but dew point remains constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Creep consideration is the most important in case of the Cast iron pipes Steam engine flywheel Cycle chains Blades of gas turbines Cast iron pipes Steam engine flywheel Cycle chains Blades of gas turbines 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 Retained austenite Martensite formation Sufficient hydrogen present in the welding arc Relatively high sulphur content in the base metal Retained austenite Martensite formation Sufficient hydrogen present in the welding arc Relatively high sulphur content in the base metal 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
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