Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for A black body All bodies Black painted bodies only Polished bodies only A black body All bodies Black painted bodies only Polished bodies only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger? Convective heat transfer co-efficient Effective tube surface area for convective heat transfer All of these Tube side pressure drop and the heat transfer rate Convective heat transfer co-efficient Effective tube surface area for convective heat transfer All of these Tube side pressure drop and the heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a boiling curve, the peak heat flux is called the __________ point. Leidenfrost Burnout Nusselt Boiling Leidenfrost Burnout Nusselt Boiling ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall heat transfer co-efficient for cooling of hydrocarbons by water is about 50 -100 Kcal/hr.m².°C 50 -100 BTU/hr. ft.2°F 50 -100 W/m² . °K 1000 - 1500 BTU/hr. ft.2°F 50 -100 Kcal/hr.m².°C 50 -100 BTU/hr. ft.2°F 50 -100 W/m² . °K 1000 - 1500 BTU/hr. ft.2°F 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) U₁ - U₂ 1/U₂ - 1/U₁ 1/U₁ - 1/U₂ U₂ - U₁ U₁ - U₂ 1/U₂ - 1/U₁ 1/U₁ - 1/U₂ U₂ - U₁ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it Is more economical Is easy to operate and maintain Occupies smaller space All of these Is more economical Is easy to operate and maintain Occupies smaller space All of these ANSWER DOWNLOAD EXAMIANS APP
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