Mass Transfer Very tall packed towers are divided into series of beds to Reduce the overall pressure drop Avoid flooding Reduce liquid hold-up Avoid channelling Reduce the overall pressure drop Avoid flooding Reduce liquid hold-up Avoid channelling ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The critical moisture content in case of drying indicates the __________ rate period. End of falling None of these Beginning of constant Beginning of falling End of falling None of these Beginning of constant Beginning of falling ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In saturated gas, the Partial pressure of vapour equals the vapour pressure of the liquid at room temperature Vapour is in equilibrium with the liquid at the room temperature None of the listed here Vapour is in equilibrium with the liquid at the gas temperature Partial pressure of vapour equals the vapour pressure of the liquid at room temperature Vapour is in equilibrium with the liquid at the room temperature None of the listed here Vapour is in equilibrium with the liquid at the gas temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following employs an accessory known as 'drift eliminator' ? Multiple effect evaporator Rotating disc contactor Mechanical draft cooling tower Rotary dryer Multiple effect evaporator Rotating disc contactor Mechanical draft cooling tower Rotary dryer ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL².DA √(KL².DA) KL²/DA KL/DA² KL².DA √(KL².DA) KL²/DA KL/DA² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a distillation column operating at minimum reflux, the Reflux ratio will be maximum Concentration of liquid and vapour leaving a plate will be same Number of plates required will be maximum None of these Reflux ratio will be maximum Concentration of liquid and vapour leaving a plate will be same Number of plates required will be maximum None of these ANSWER DOWNLOAD EXAMIANS APP
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