DRYING

Question 1

When the solid material is said to be “dry”, it means that

Answer 1

the solid still contains very small amount of moisture

Question 2

When a solid material is placed inside a batch tray dryer, material is usually subjected

Answer 2

under constant drying conditions

Question 3

Portion of water in the wer solid that cannot be removed by the air in direct contacr with the solid

Answer 3

equilibrium moisture content

Question 4

Moisture in the solid thar exerts the equilibrium vapor pressure of pure liquid at the prevailing conditions

Answer 4

unbound moisture

Question 5

This type of drier is used for drying pasty materials such as wet filterbcakes and lumpy solids

Answer 5

tray drier

Question 6

unbound moisture in granular and porous solid moves through the intersticesnof the solid by a mechanism involving

Answer 6

moisture diffusivity

Question 7

First point of the falling rate period corresponds to

Answer 7

critical moisture dryingg

Question 8

Drum driers are used for drying _________

Answer 8

pastes