Heat Transfer The sum of reflectivity and absorptivity for an opaque body is equal to 1 2 0.5 1 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is Parallel Forward None of these Backward Parallel Forward None of these Backward ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m².s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m²/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is 2000 5000 6000 4000 2000 5000 6000 4000 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 32 37 45 50 32 37 45 50 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Increasing the liquor level in the evaporator results in the decreased effect of hydrostatic head increase in liquor film co-efficient increased true temperature drop decreased capacity decreased effect of hydrostatic head increase in liquor film co-efficient increased true temperature drop decreased capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side. U-tube Three pass, fixed tube sheet None of these Single pass, fixed tube sheet U-tube Three pass, fixed tube sheet None of these Single pass, fixed tube sheet ANSWER DOWNLOAD EXAMIANS APP
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