Heat Transfer The main purpose of providing fins on heat transfer surface is to increase the Temperature gradient Heat transfer co-efficient Mechanical strength of the equipment Heat transfer area Temperature gradient Heat transfer co-efficient Mechanical strength of the equipment Heat transfer area 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)1/4 None of the listed here ΔT (ΔT)2 (ΔT)1/4 None of the listed here ΔT (ΔT)2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A perfect black body is a perfect __________ of radiation absorber emitter none of the listed here Both emitter & absorber absorber emitter none of the listed here Both emitter & absorber ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Total heat transfer area of all the effects is -less than that in a single effect evaporator system Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Total heat transfer area of all the effects is -less than that in a single effect evaporator system Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low viscosity thermal conductivity Grashoff number Prandtl number viscosity thermal conductivity Grashoff number Prandtl number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law applies to the heat transfer by conduction radiation None of the listed here convection conduction radiation None of the listed here convection ANSWER DOWNLOAD EXAMIANS APP
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