Heat Transfer A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires None of these More space Less heating surface Lower maintenance cost None of these More space Less heating surface Lower maintenance cost ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Surface area to perimeter Perimeter to surface area Surface area to volume Volume to surface area Surface area to perimeter Perimeter to surface area Surface area to volume Volume to surface area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is achieved in __________ flow. Counter-current Laminar Turbulent Co-current Counter-current Laminar Turbulent Co-current ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is directly concerned with the heat transfer? Euler number Strouhal number Grashoff number Sherwood number Euler number Strouhal number Grashoff number Sherwood number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because There is no mist formation There is no risk of contamination Heat transfer co-efficient are high Cost of equipment is lower There is no mist formation There is no risk of contamination Heat transfer co-efficient are high Cost of equipment is lower ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Increasing the liquor level in the evaporator results in the decreased capacity decreased effect of hydrostatic head increased true temperature drop increase in liquor film co-efficient decreased capacity decreased effect of hydrostatic head increased true temperature drop increase in liquor film co-efficient ANSWER DOWNLOAD EXAMIANS APP
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