Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch Gives a lower shell side pressure drop None of these Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter Gives a lower shell side pressure drop None of these Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In forced convection, the heat transfer depends on Re, Gr Re, Pr mainly Gr none of the listed here Re, Gr Re, Pr mainly Gr none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a parallel flow heat exchanger, if the outlet temperature of hot and cold fluids are the same, then the log mean temperature difference (LMTD) is Minimum Zero Maximum Infinity Minimum Zero Maximum Infinity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The interchange factor for radiation heat transfer from surface 'x' to surface 'y' in case of an infinite parallel planes with emis-sivities εx & εy is given by Εx . εy 1/εx + 1/εy (εx + εy)/(εx + εy - εx . εy) Εx + εy Εx . εy 1/εx + 1/εy (εx + εy)/(εx + εy - εx . εy) Εx + εy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Circulation pump is located below the evaporater to Avoid frequent priming Create more suction head Avoid cavitation None of these Avoid frequent priming Create more suction head Avoid cavitation None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 44 min 15 min 22 min 51 min 44 min 15 min 22 min 51 min ANSWER DOWNLOAD EXAMIANS APP
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