Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Different Linearly related Never different Same Different Linearly related Never different Same ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of 37 6.1 1.74 1 37 6.1 1.74 1 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) 1/U₂ - 1/U₁ 1/U₁ - 1/U₂ U₁ - U₂ U₂ - U₁ 1/U₂ - 1/U₁ 1/U₁ - 1/U₂ U₁ - U₂ U₂ - U₁ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which one gives the monochromatic emissive power for black body radiation ? Kirchhoffs law Wien's law Stefan-Boltzman law Planck's law Kirchhoffs law Wien's law Stefan-Boltzman law Planck's law ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal diffusivity of a material Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity Has the unit m² /sec All of these Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity Has the unit m² /sec All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation occurs on __________ surfaces smooth clean polished clean and dirt free contaminated cooling smooth clean polished clean and dirt free contaminated cooling ANSWER DOWNLOAD EXAMIANS APP
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