Heat Transfer Which of the following is directly concerned with the heat transfer? Sherwood number Grashoff number Euler number Strouhal number Sherwood number Grashoff number Euler number Strouhal number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor Is a dimensionless quantity None of these Accounts for additional resistances to heat flow Does not provide a safety factor for design Is a dimensionless quantity None of these Accounts for additional resistances to heat flow Does not provide a safety factor for design ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Agitated film evaporator is suitable for concentrating __________ liquids. Very thin Corrosive Foaming Viscous Very thin Corrosive Foaming Viscous ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is 0.15 0.55 55.5 555 0.15 0.55 55.5 555 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it All of these Occupies smaller space Is more economical Is easy to operate and maintain All of these Occupies smaller space Is more economical Is easy to operate and maintain ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 2-4 heat exchanger involves Smaller pressure drop compared to 1-2 exchanger Only parallel-flow of fluids Both counter and parallel-flow of the fluids Only counter-flow of fluids Smaller pressure drop compared to 1-2 exchanger Only parallel-flow of fluids Both counter and parallel-flow of the fluids Only counter-flow of fluids ANSWER DOWNLOAD EXAMIANS APP
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