Heat Transfer For specified tube outside diameter, higher BWG means higher tube thickness cross-sectional area none of the listed here weight per unit length tube thickness cross-sectional area none of the listed here weight per unit length ANSWER DOWNLOAD EXAMIANS APP
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 All bodies A black body Black painted bodies only Polished bodies only All bodies A black body Black painted bodies only Polished bodies only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid none of the listed here for fluids in tubulent flow when Grashhoff number is very important for fluids in laminar flow none of the listed here for fluids in tubulent flow when Grashhoff number is very important for fluids in laminar flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Volume to surface area Surface area to volume Surface area to perimeter Perimeter to surface area Volume to surface area Surface area to volume Surface area to perimeter Perimeter to surface area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 37 50 32 45 37 50 32 45 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Neither A and B Velocity of circulation Liquor-film co-efficient Both A and B Neither A and B Velocity of circulation Liquor-film co-efficient Both A and B ANSWER DOWNLOAD EXAMIANS APP
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