Mass Transfer For continuous drying of grannular or crystalline material, the dryer used is the __________ dryer. Tunnel Rotary None of these Tray Tunnel Rotary None of these Tray ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process? Relative humidity of outlet air Humidity of inlet air Temperature of the solid Flow rate of inlet air Relative humidity of outlet air Humidity of inlet air Temperature of the solid Flow rate of inlet air ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns). 43835 > 500 22190 200-300 43835 > 500 22190 200-300 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and Humidified at constant wet bulb temperature Dehumidified Humidified with wet bulb temperature decreasing None of these Humidified at constant wet bulb temperature Dehumidified Humidified with wet bulb temperature decreasing None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the constant rate period of the rate of drying curve for batch drying, None of these Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs Rate of drying decreases abruptly None of these Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs Rate of drying decreases abruptly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Decrease Increase Depend on saturated boiling point; may increase or decrease Remains same Decrease Increase Depend on saturated boiling point; may increase or decrease Remains same ANSWER DOWNLOAD EXAMIANS APP
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