Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid when Grashhoff number is very important for fluids in tubulent flow none of the listed here for fluids in laminar flow when Grashhoff number is very important for fluids in tubulent flow none of the listed here for fluids in laminar flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the ratio of Momentum diffusivity to thermal diffusivity Momentum diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity Momentum diffusivity to thermal diffusivity Momentum diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Low pressure drop High heat transfer co-efficient Large temperature differentials Less corrosion of tubes Low pressure drop High heat transfer co-efficient Large temperature differentials Less corrosion of tubes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Finned tube heat exchangers give larger area per tube facilitate very large temperature drop through tube wall are used for smaller heat load use metal fins of low thermal conductivity give larger area per tube facilitate very large temperature drop through tube wall are used for smaller heat load use metal fins of low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, the Col-burn analogy is valid ? l to 50 1 to 103 0.6 to 120 0.06 to 120 l to 50 1 to 103 0.6 to 120 0.06 to 120 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD can't be used as such without a correction factor for the Baffled heat exchanger Condensation of mixed vapour in a condenser All of these Multipass heat exchanger Baffled heat exchanger Condensation of mixed vapour in a condenser All of these Multipass heat exchanger ANSWER DOWNLOAD EXAMIANS APP
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