Heat Transfer The main purpose of providing fins on heat transfer surface is to increase the Temperature gradient Mechanical strength of the equipment Heat transfer co-efficient Heat transfer area Temperature gradient Mechanical strength of the equipment Heat transfer co-efficient Heat transfer area 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 Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air inside and steam outside Shell and tube heat exchanger with air on shell side and steam inside tubes Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air inside tubes and steam on shell side ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The separation of liquid droplets from the vapor is done by a/an __________ , in the evaporators. Steam ejector Compressor Vacuum pump Entrainment separator Steam ejector Compressor Vacuum pump Entrainment separator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the most suitable for the concentration of foamy & frothy liquors? Open pan evaporator Agitated film evaporator Long tube vertical evaporator None of these Open pan evaporator Agitated film evaporator Long tube vertical evaporator None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C. None of these 1 4.88 1.49 None of these 1 4.88 1.49 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature = wall temperature Graetz number > 100 Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature Exit fluid temperature = wall temperature Graetz number > 100 Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature ANSWER DOWNLOAD EXAMIANS APP
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