Heat Transfer Which of the following has the lowest overall heat transfer co-efficient? Dowtherm Molten sodium Air Water Dowtherm Molten sodium Air Water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam is routed through the tube in case of a __________ evaporator. Basket type Short tube vertical Horizontal tube Long tube vertical Basket type Short tube vertical Horizontal tube Long tube vertical ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is 25 26.8 34.4 40.5 25 26.8 34.4 40.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the Lower pressure drop through the exchanger is desired Condensate is corrosive in nature Temperature of the incoming vapor is very high Higher condensing film co-efficient is desired Lower pressure drop through the exchanger is desired Condensate is corrosive in nature Temperature of the incoming vapor is very high Higher condensing film co-efficient is desired ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side. Single pass, fixed tube sheet Three pass, fixed tube sheet U-tube None of these Single pass, fixed tube sheet Three pass, fixed tube sheet U-tube None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the total emissivity of conductors Decreases Remains same Decreases linearly Increases Decreases Remains same Decreases linearly Increases ANSWER DOWNLOAD EXAMIANS APP
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