Heat Transfer In a heat exchanger, one transfer unit means None of these Both A and B The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section None of these Both A and B The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy d²T/dZ² = 0 d²T/dZ² > 0 d²T/dZ² < 0 dT/dZ = 0 d²T/dZ² = 0 d²T/dZ² > 0 d²T/dZ² < 0 dT/dZ = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The most conducive surface for dropwise condensation to occur is the __________ surface. Coated Smooth Oily Glazed & polished Coated Smooth Oily Glazed & polished ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam side heat transfer co-efficient in an evaporator is in the range of __________ kcal/hr.m²°C. 5000-15000 18537 1000-1500 100-500 5000-15000 18537 1000-1500 100-500 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air outside and steam inside ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A perfect black body is a perfect __________ of radiation Both emitter & absorber none of the listed here absorber emitter Both emitter & absorber none of the listed here absorber emitter ANSWER DOWNLOAD EXAMIANS APP
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