Heat Transfer Film boiling is usually not desired in commercial equipments, because it is difficult to maintain none of the listed here it is not economic the heat transfer rate is low in view of the large temperature drop. @ it is difficult to maintain none of the listed here it is not economic the heat transfer rate is low in view of the large temperature drop. @ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equivalent diameter for pressure drop is __________ that for heat transfer None of the listed here greater than equal to smaller than None of the listed here greater than equal to smaller than ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If heat transfer rate varies with the time, it is termed as Monochromatic radiation None of these Steady state conduction Forced convection Monochromatic radiation None of these Steady state conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its High proportion of air space High specific heat None of these Dense structure High proportion of air space High specific heat None of these Dense structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, There is no relationship between temperature drop and resistance The temperature drop is inversely proportional to the resistance across which the drop occurs The temperature drops in the two fluids and the wall are proportional to individual resistances The relationship is not generalised There is no relationship between temperature drop and resistance The temperature drop is inversely proportional to the resistance across which the drop occurs The temperature drops in the two fluids and the wall are proportional to individual resistances The relationship is not generalised ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 15 min 44 min 51 min 22 min 15 min 44 min 51 min 22 min ANSWER DOWNLOAD EXAMIANS APP
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