Heat Transfer The purpose of floating head in a heat exchanger is to Facilitate its lengthening, if needed Provide support for tubes Avoid buckling of tubes Decrease the pressure drop Facilitate its lengthening, if needed Provide support for tubes Avoid buckling of tubes Decrease the pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) α T⁴ α 1/T αT Independent of T α T⁴ α 1/T αT Independent of T ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Driving force = Rate x Resistance Rate = Driving force x Resistance Resistance = Driving force x Rate Rate = Resistance/Driving force Driving force = Rate x Resistance Rate = Driving force x Resistance Resistance = Driving force x Rate Rate = Resistance/Driving force ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Baffle spacing Should be less than the inside diameter of the shell Should be less than one fifth the diameter of the shell Is not the same as baffle pitch None of these Should be less than the inside diameter of the shell Should be less than one fifth the diameter of the shell Is not the same as baffle pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the emissivity of a black body? 0.9 0.5 1 0.9 0.5 1 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 Higher condensing film co-efficient is desired Condensate is corrosive in nature Lower pressure drop through the exchanger is desired Temperature of the incoming vapor is very high Higher condensing film co-efficient is desired Condensate is corrosive in nature Lower pressure drop through the exchanger is desired Temperature of the incoming vapor is very high ANSWER DOWNLOAD EXAMIANS APP
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