Heat Transfer Nusselt number is the ratio of the temperature gradient at the wall to None of these Temperature difference That across the entire pipe Heat flux None of these Temperature difference That across the entire pipe Heat flux ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Sum of all resistances Average of all resistances Maximum resistance in the series Minimum resistance presents in the series Sum of all resistances Average of all resistances Maximum resistance in the series Minimum resistance presents in the series ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? 1/2 √(A₁ . A₂) √(A₁ . A₂) √(A₁ + A₂) 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) √(A₁ + A₂) 2 √(A₁ . A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is 63.8 71.2 48.7 77.2 63.8 71.2 48.7 77.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Graetz number is concerned with the 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 mass transfer between a gas and a liquid heat transfer in laminar flow heat transfer in turbulent flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A BTU/hr.ft.2 °F is equal to 4.88 kcal/hr. m.2°C 1 kcal/hr. m².°K 1 kcal/hr. m²°C None of these 4.88 kcal/hr. m.2°C 1 kcal/hr. m².°K 1 kcal/hr. m²°C None of these ANSWER DOWNLOAD EXAMIANS APP
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