Heat Transfer In a shell and tube heat exchanger, the tube side heat transfer co-efficient just at the entrance of the tube is Zero Same as average heat transfer co-efficient for tube side None of these Infinity Zero Same as average heat transfer co-efficient for tube side None of these Infinity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam consumption in kg/hr in case of an evaporator is given by (where, C & E are capacity the economy of the evaporator respectively) E/C CE 1/CE C/E E/C CE 1/CE C/E ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Molten sodium Dowtherm Water Air Molten sodium Dowtherm Water Air 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 ) None of the listed here (ΔT)2 (ΔT)1/4 ΔT None of the listed here (ΔT)2 (ΔT)1/4 ΔT ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is unimportant in forced convection ? Reynolds number Prandtl number Grashhoff number none of the listed here Reynolds number Prandtl number Grashhoff number none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In the equation Q = UAΔt; Δt is 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 Logarithmic mean temperature difference Geometric mean temperature difference The difference of average bulk temperatures of hot and cold fluids ANSWER DOWNLOAD EXAMIANS APP
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