Heat Transfer Harmonic mean temperature difference is given by (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) √(ΔT₁ . ΔT₂) (ΔT₁ - ΔT₂)/(ΔT₁ . ΔT₂) 2.(ΔT₁ . ΔT₂)/(ΔT₁ + ΔT₂) 2.(ΔT₁ . ΔT₂)(ΔT₁ - ΔT₂) √(ΔT₁ . ΔT₂) 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 Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air inside and steam outside Finned tube heat exchanger with air outside and steam inside Shell and tube heat exchanger with air on shell side and steam inside tubes Shell and tube heat exchanger with air inside tubes and steam on shell side Finned tube heat exchanger with air inside and steam outside Finned tube heat exchanger with air outside and steam inside ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by None of these Keeping the heat transfer surface clean Enhancing the fluid pumping rate Increasing the tube length None of these Keeping the heat transfer surface clean Enhancing the fluid pumping rate Increasing the tube length ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is directly concerned with the heat transfer? Grashoff number Strouhal number Sherwood number Euler number Grashoff number Strouhal number Sherwood number Euler number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a boiling curve, the peak heat flux is called the __________ point. Burnout Nusselt Boiling Leidenfrost Burnout Nusselt Boiling Leidenfrost ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Increase Decrease May increase or decrease; depends on the pressure Remain unchanged Increase Decrease May increase or decrease; depends on the pressure Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS