Heat Transfer Viscous & heat sensitive liquids are concentrated in __________ evaporators. Long tube Agitated film None of these Open pan Long tube Agitated film None of these Open pan ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Liquid density Hot surface temperature Interfacial tension Liquid viscosity Liquid density Hot surface temperature Interfacial tension Liquid viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) (ΔT)³ √(ΔT) (ΔT)² (ΔT)⁴ (ΔT)³ √(ΔT) (ΔT)² (ΔT)⁴ 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 5000 4000 2000 6000 5000 4000 2000 6000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low Grashoff number Prandtl number thermal conductivity viscosity Grashoff number Prandtl number thermal conductivity viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is In the central core of the fluid None of these Mainly confined to a thin film of fluid near the surface Uniformly distributed throughout the fluid In the central core of the fluid None of these Mainly confined to a thin film of fluid near the surface Uniformly distributed throughout the fluid ANSWER DOWNLOAD EXAMIANS APP
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