Heat Transfer Finned tube heat exchangers give larger area per tube facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity are used for smaller heat load give larger area per tube facilitate very large temperature drop through tube wall use metal fins of low thermal conductivity are used for smaller heat load ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Volume to surface area Surface area to volume Perimeter to surface area Surface area to perimeter Volume to surface area Surface area to volume Perimeter to surface area Surface area to perimeter ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporator tubes are generally Horizontal Random Vertical Inclined Horizontal Random Vertical Inclined ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The inside heat transfer co-efficient in case of turbulent flow of liquid in the tube side in a 1-2 shell and tube heat exchanger is increased by __________ times, when the number of tube passes is increased to 8. 40.8 40.4 20.4 20.8 40.8 40.4 20.4 20.8 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, Both A and B More surface area is required for a given heat transfer rate LMTD is greater Less surface area is required for a given heat transfer rate Both A and B More surface area is required for a given heat transfer rate LMTD is greater Less surface area is required for a given heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the None of these Heat flux at the wall to that across the entire pipe Temperature gradient of the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall None of these Heat flux at the wall to that across the entire pipe Temperature gradient of the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS