Heat Transfer In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger. Twice Four times Once Thrice Twice Four times Once Thrice ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Wavelength corresponding to the maximum energy is inversely proportional to the absolute temperature. This is __________ law. Wien's Dalton's Stefan's Kirchoffs Wien's Dalton's Stefan's Kirchoffs 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 0.55 555 55.5 0.15 0.55 555 55.5 0.15 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) √(A₁ + A₂) 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) √(A₁ + A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Graetz number is concerned with the mass transfer between a gas and a liquid heat transfer in laminar flow heat transfer in turbulent flow absorption with chemical reaction mass transfer between a gas and a liquid heat transfer in laminar flow heat transfer in turbulent flow absorption with chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? None of the listed here Arithmetic mean area Geometric mean area Logarithmic mean area None of the listed here Arithmetic mean area Geometric mean area Logarithmic mean area ANSWER DOWNLOAD EXAMIANS APP
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