Heat Transfer With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer Increases Remains unaffected Increases exponentially Decreases Increases Remains unaffected Increases exponentially Decreases 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 51 min 44 min 22 min 15 min 51 min 44 min 22 min 15 min ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Increasing the liquor level in the evaporator results in the increased true temperature drop decreased effect of hydrostatic head decreased capacity increase in liquor film co-efficient increased true temperature drop decreased effect of hydrostatic head decreased capacity increase in liquor film co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are preferably useful, when Overall heat transfer co-efficient is very high A corrosive liquid is to be heated High viscosity liquid is to be cooled Requirement of heat transfer area is low Overall heat transfer co-efficient is very high A corrosive liquid is to be heated High viscosity liquid is to be cooled Requirement of heat transfer area is low ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a backward feed multiple effect evaporator Feed flows from low pressure to high pressure No pumps are required between successive effects Feed is introduced in the first effect None of these Feed flows from low pressure to high pressure No pumps are required between successive effects Feed is introduced in the first effect None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 0.5-50 5-50 0.38-0.78 100-1000 0.5-50 5-50 0.38-0.78 100-1000 ANSWER DOWNLOAD EXAMIANS APP
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