Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the Both B and C Capacity of the evaporator is decreased True temperature drop increases Capacity of the evaporator is increased Both B and C Capacity of the evaporator is decreased True temperature drop increases Capacity of the evaporator is increased ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film thickness for laminar film condensation on vertical surface __________ from top to bottom. Cummulatively decreases And the surface conductance increase Cummulatively increases Remains constant Cummulatively decreases And the surface conductance increase Cummulatively increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of steel Increases Decreases Remains unchanged Increases exponentially Increases Decreases Remains unchanged Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Graetz number > 100 Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Graetz number > 100 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The overall heat transfer co-efficient for a shell and tube heat exchanger for clean surfaces is U0 = 400 W/m².K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m².K. The overall heat transfer co-efficient at this time is 287 W/m².K 1200W/m².K 333W/m².K 894W/m².K 287 W/m².K 1200W/m².K 333W/m².K 894W/m².K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 37 45 32 50 37 45 32 50 ANSWER DOWNLOAD EXAMIANS APP
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