Heat Transfer Natural convection is characterised by Prandtl number Grashhoff number Reynolds number Peclet number Prandtl number Grashhoff number Reynolds number Peclet number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have High thermal conductivity A porous structure Low thermal conductivity Less resistance to heat flow High thermal conductivity A porous structure Low thermal conductivity Less resistance to heat flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. Decreases Increases May increase or decrease, depends on the vacuum Remains constant Decreases Increases May increase or decrease, depends on the vacuum Remains constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) (ΔT)⁴ (ΔT)² (ΔT)³ √(ΔT) (ΔT)⁴ (ΔT)² (ΔT)³ √(ΔT) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by Eddies current None of these Convection Conduction Eddies current None of these Convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Controlling heat transfer film co-efficient is the one, which offers __________ resistance to heat transfer. the least lower the largest no the least lower the largest no ANSWER DOWNLOAD EXAMIANS APP
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