Heat Transfer All analogy equations connecting friction factor and heat transfer co-efficient apply only to Form friction Turbulent flow Wall or skin friction Both A and B Form friction Turbulent flow Wall or skin friction Both A and B 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 In case of __________ boiling, the bubbles formed on a submerged hot surface get absorbed in the mass of the liquid. Pool Low pressure None of these Nucleate Pool Low pressure None of these Nucleate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m². The flux, when the element temperature is increased to 1000°C for the same furnace temperature is 14.6 kW/m² 11.2 kW/m² 16.5 kW/m² 12.0 kW/m² 14.6 kW/m² 11.2 kW/m² 16.5 kW/m² 12.0 kW/m² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a multipass shell and tube heat exchanger, the LMTD correction factor is always > 1 Between 1 & 2 1 < 1 > 1 Between 1 & 2 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used To reduce the pressure drop To obtain higher heat transfer co-efficient and shorter tube For low heat load Because of simplicity of fabrication To reduce the pressure drop To obtain higher heat transfer co-efficient and shorter tube For low heat load Because of simplicity of fabrication ANSWER DOWNLOAD EXAMIANS APP
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