Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 0.5-50 100-1000 5-50 0.38-0.78 0.5-50 100-1000 5-50 0.38-0.78 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An ejector is used to Increase pressure None of these Remove condensate Increase temperature Increase pressure None of these Remove condensate Increase temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Small scale evaporation is done in a Steam jacketed kettle Condenser Heat exchanger Multiple effect evaporator Steam jacketed kettle Condenser Heat exchanger Multiple effect evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the Heat flux at the wall to that across the entire pipe None of these Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe None of these Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe 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 44 min 15 min 22 min 51 min 44 min 15 min 22 min 51 min 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) Water Dilute H₂SO₄ Transformer oil Molten sodium (a coolant used in fast breeder reactor) Water Dilute H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS