Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Graetz number > 100 Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Graetz number > 100 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoffs law. Temperature of the body None of these Nature of the body Wavelength of radiation Temperature of the body None of these Nature of the body Wavelength of radiation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kg of liquid evaporated per hour in an evaporator is defined as its None of these Economy Capacity Steam load None of these Economy Capacity Steam load ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the Evaporators opreate at atmospheric pressure None of these Solution has an elevation of boiling point Evaporators operate under vacuum Evaporators opreate at atmospheric pressure None of these Solution has an elevation of boiling point Evaporators operate under vacuum 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 6000 2000 5000 4000 6000 2000 5000 4000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is unimportant in forced convection ? Grashhoff number none of the listed here Prandtl number Reynolds number Grashhoff number none of the listed here Prandtl number Reynolds number ANSWER DOWNLOAD EXAMIANS APP
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