Mass Transfer Which of the following employs an accessory known as 'drift eliminator' ? Rotary dryer Mechanical draft cooling tower Rotating disc contactor Multiple effect evaporator Rotary dryer Mechanical draft cooling tower Rotating disc contactor Multiple effect evaporator ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Randomly packed column Wetted wall column Sieve plate column Bubble cap column Randomly packed column Wetted wall column Sieve plate column Bubble cap column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following mixtures does not form an azeotrope at atmosheric pressure? Water-alcohol Methyl alcohol-acetone Butyl acetate-water None of these Water-alcohol Methyl alcohol-acetone Butyl acetate-water None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 0.4 0.2 1 0.4 0.2 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the wrong statement. Raoult's law does not apply, when the Size of component molecules are not equal Chemical combination or molecular association between unlike molecules takes place in the formation of solution Attractive forces between like and unlike molecules in the solution are approximately equal Component molecules are nonpolar Size of component molecules are not equal Chemical combination or molecular association between unlike molecules takes place in the formation of solution Attractive forces between like and unlike molecules in the solution are approximately equal Component molecules are nonpolar ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be ≤ 1 < 1 1 > 1 ≤ 1 < 1 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
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