Heat Transfer The overall resistance for heat transfer through a series of flat resistance, is the __________ of the resistances. Geometric mean Average Product Sum Geometric mean Average Product Sum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted An oily surface When both the steam and the tube are clean Only in presence of air None of these An oily surface When both the steam and the tube are clean Only in presence of air None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is Some Less More Either more or less ; depends on the nature of vapor Some Less More Either more or less ; depends on the nature of vapor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is used for chilling oil to be dewaxed. U-tube Floating head Double pipe Fixed tube U-tube Floating head Double pipe Fixed tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the lowest Prandtl number? Molten sodium (a coolant used in fast breeder reactor) Water Transformer oil Dilute H₂SO₄ Molten sodium (a coolant used in fast breeder reactor) Water Transformer oil Dilute H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single effect evaporator, the economy is > 1 None of these 1 < 1 > 1 None of these 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS