Heat Transfer Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) d1.5 √d d2 d d1.5 √d d2 d ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the Temperature of the incoming vapor is very high Lower pressure drop through the exchanger is desired Higher condensing film co-efficient is desired Condensate is corrosive in nature Temperature of the incoming vapor is very high Lower pressure drop through the exchanger is desired Higher condensing film co-efficient is desired Condensate is corrosive in nature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 1 and ? 0 and 0.5 0 and 1 1 and 0 1 and ? 0 and 0.5 0 and 1 1 and 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest Prandtl number? Transformer oil Molten sodium (a coolant used in fast breeder reactor) Dilute H₂SO₄ Water Transformer oil Molten sodium (a coolant used in fast breeder reactor) Dilute H₂SO₄ Water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the ratio of Momentum diffusivity to mass diffusivity Thermal diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Momentum diffusivity to mass diffusivity Thermal diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is unimportant in forced convection ? Grashhoff number Reynolds number none of the listed here Prandtl number Grashhoff number Reynolds number none of the listed here Prandtl number ANSWER DOWNLOAD EXAMIANS APP
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