Heat Transfer Heat transfer co-efficient (h1) for liquids increases with Decreasing Reynolds number None of these Increasing temperature Decreasing temperature Decreasing Reynolds number None of these Increasing temperature Decreasing temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the Constant temperature equal to that of the base Average temperature of the fin Surrounding temperature Temperature of the fin end Constant temperature equal to that of the base Average temperature of the fin Surrounding temperature Temperature of the fin end ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The most conducive surface for dropwise condensation to occur is the __________ surface. Oily Glazed & polished Smooth Coated Oily Glazed & polished Smooth Coated ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? Logarithmic mean area None of the listed here Geometric mean area Arithmetic mean area Logarithmic mean area None of the listed here Geometric mean area Arithmetic mean area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low thermal conductivity viscosity Grashoff number Prandtl number thermal conductivity viscosity Grashoff number Prandtl number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is achieved in __________ flow. Co-current Counter-current Turbulent Laminar Co-current Counter-current Turbulent Laminar ANSWER DOWNLOAD EXAMIANS APP
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