Heat Transfer Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is 0.4 0.2 0.8 0.6 0.4 0.2 0.8 0.6 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer All analogy equations connecting friction factor and heat transfer co-efficient apply only to Form friction Turbulent flow Wall or skin friction Both A and B Form friction Turbulent flow Wall or skin friction Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In SI units, fouling factor is expressed in m²°K/W m°K/W m²°K W/m²°K m²°K/W m°K/W m²°K W/m²°K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large. 20 minutes 10 minutes 40 minutes 5 minutes 20 minutes 10 minutes 40 minutes 5 minutes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The overall resistance for heat transfer through a series of flat resistance, is the __________ of the resistances. Sum Average Geometric mean Product Sum Average Geometric mean Product ANSWER DOWNLOAD EXAMIANS APP
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) U₂ - U₁ 1/U₁ - 1/U₂ 1/U₂ - 1/U₁ U₁ - U₂ U₂ - U₁ 1/U₁ - 1/U₂ 1/U₂ - 1/U₁ U₁ - U₂ ANSWER DOWNLOAD EXAMIANS APP
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