Heat Transfer In case of heat transfer by conduction in a hollow cylinder, __________ mean area is used to calculate the heat transfer rate. Logarithmic Geometric Either A, B or C Arithmetic Logarithmic Geometric Either A, B or C Arithmetic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because There is no risk of contamination There is no mist formation Cost of equipment is lower Heat transfer co-efficient are high There is no risk of contamination There is no mist formation Cost of equipment is lower Heat transfer co-efficient are high ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch Can pack more surface area into a shell of given diameter Gives a higher shell side pressure drop None of these Gives a lower shell side pressure drop Can pack more surface area into a shell of given diameter Gives a higher shell side pressure drop None of these Gives a lower shell side pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, one transfer unit means A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr Both A and B None of these A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporation accounts for Steam economy Investment economy None of these Lower operating costs Steam economy Investment economy None of these Lower operating costs ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film boiling occurs at __________ pressure. very high atmospheric negative none of the listed here very high atmospheric negative none of the listed here ANSWER DOWNLOAD EXAMIANS APP
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