Heat Transfer Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface) 1/U₁ - 1/U₂ U₂ - U₁ 1/U₂ - 1/U₁ U₁ - U₂ 1/U₁ - 1/U₂ U₂ - U₁ 1/U₂ - 1/U₁ U₁ - U₂ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? None of these When fluid flows past a smooth surface At low velocity At high fluid velocity None of these When fluid flows past a smooth surface At low velocity At high fluid velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporator tubes are generally Inclined Random Horizontal Vertical Inclined Random Horizontal Vertical ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called Natural convection Radiation Conduction Forced convection Natural convection Radiation Conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 1 20 10 30 1 20 10 30 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Forced convection only Free and forced convection Forced convection and conduction Conduction only Forced convection only Free and forced convection Forced convection and conduction Conduction only ANSWER DOWNLOAD EXAMIANS APP
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