Heat Transfer In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger. Twice Once Four times Thrice Twice Once Four times Thrice ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid. Less than Equal to More than Either more or less than (depending upon the fluid) Less than Equal to More than Either more or less than (depending upon the fluid) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m².s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m²/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is 4000 2000 5000 6000 4000 2000 5000 6000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation is promoted on a/an __________ surface. Glazed Oily Coated Smooth Glazed Oily Coated Smooth ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, Less surface area is required for a given heat transfer rate Both A and B More surface area is required for a given heat transfer rate LMTD is greater Less surface area is required for a given heat transfer rate Both A and B More surface area is required for a given heat transfer rate LMTD is greater ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to To superheat the steam Data insufficient, can Evaporate the water Heat the water from 0°C to 100°C To superheat the steam Data insufficient, can Evaporate the water Heat the water from 0°C to 100°C ANSWER DOWNLOAD EXAMIANS APP
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