Question 4
Marks : +2 | -2
Pass Ratio : 100%
Statement 1: Vibro-fluidized bed dryer can reduce the air flow rate consumptions as air is only used for drying and not for fluidizing.
Explanation: Vibro-fluidized bed dryer can reduce the air flow rate consumptions as air is only used for drying and not for fluidizing. Mechanical vibratory motion is used for fluidization. Screw conveyors are often called desolventizers because the main purpose is to remove the solvent from the pastes and not to recover it.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
What does excess supersaturating followed by cooling lead to?
Explanation: Excess supersaturating followed by cooling only leads to primary nucleation. That’s like the formation of only the first crystal. Secondary nucleation is due to the agglomeration of crystals which is desirable.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is the cheapest filtration equipment?
Explanation: Plate and frame filter press is the cheapest filtration equipment among all the equipment.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
With respect to the Tyler series, which of the following is true?
Explanation: Intermediate meshes can be accommodated in Tyler series and the ratio of one mess size to the intermediate mesh will have the ratio of 4th root of 2