Heat Transfer Peclet number (Pe) is given by Pe = Re.Pr Pe = Re/Pr Pe = Pr/Re Pe = Nu.Re Pe = Re.Pr Pe = Re/Pr Pe = Pr/Re Pe = Nu.Re ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it None of these Decreases the pressure drop Increases the overall heat transfer coefficient Decreases the outlet temperature of cooling medium None of these Decreases the pressure drop Increases the overall heat transfer coefficient Decreases the outlet temperature of cooling medium ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer While the total emissivity of a perfect black body is unity, the same for a real body is >1 0 between 0 and 1 1 >1 0 between 0 and 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Create vacuum Vent the non-condensible gases Arrest the entrained liquid Regulate the vapor flow Create vacuum Vent the non-condensible gases Arrest the entrained liquid Regulate the vapor flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In the equation Q = UAΔt; Δt is Logarithmic mean temperature difference Geometric mean temperature difference The difference of average bulk temperatures of hot and cold fluids Arithmetic mean temperature difference Logarithmic mean temperature difference Geometric mean temperature difference The difference of average bulk temperatures of hot and cold fluids Arithmetic mean temperature difference ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have Low thermal conductivity High thermal conductivity A porous structure Less resistance to heat flow Low thermal conductivity High thermal conductivity A porous structure Less resistance to heat flow ANSWER DOWNLOAD EXAMIANS APP
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