Heat Transfer Finned tube heat exchangers use metal fins of low thermal conductivity are used for smaller heat load facilitate very large temperature drop through tube wall give larger area per tube use metal fins of low thermal conductivity are used for smaller heat load facilitate very large temperature drop through tube wall give larger area per tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In natural convection heat transfer, the correlating parameter is the Eckert number Graetz number Grashoff number Bond number Eckert number Graetz number Grashoff number Bond number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer is not a function of the __________ number. Grashoff Both B & C Nusselt Reynolds Grashoff Both B & C Nusselt Reynolds ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? When fluid flows past a smooth surface At high fluid velocity None of these At low velocity When fluid flows past a smooth surface At high fluid velocity None of these At low velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film ) ΔT (ΔT)2 None of the listed here (ΔT)1/4 ΔT (ΔT)2 None of the listed here (ΔT)1/4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) f/4 2f f/2 f f/4 2f f/2 f ANSWER DOWNLOAD EXAMIANS APP
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