FILTRATION

Question 1

The process of removing MOC, particles and droplets from liquid and gases using filter media called septum that retains particle while allowing liquid to pass through is known as…

Answer 1

Filtration

Question 2

…is a type of separation process in which the particle is less than 0.1m

Answer 2

Clarification

Question 3

Two types of filtration is

Answer 3

Solid/fluid filtration
Fluid/fluid filtration

Question 4

Solid fluid filtration comprises of

Answer 4

Solid/gas filtration eg. Aerosol
Solid/liquid eg. Suspension

Question 5

Fluid/fluid filtration comprises of

Answer 5

Liquid/liquid filtration
Liquid/gas filtration

Question 6

The dispersion of insoluble solids in liquid is known as

Answer 6

Slurry

Question 7

…is the term used to describe the situation when filtered material (filter cake) acts as its own filter media

Answer 7

Auto filtration

Question 8

The mechanism of auto filtration is used by…

Answer 8

Metafilter

Question 9

Another name for sieving is

Answer 9

Straining

Question 10

Mechanism of filtration are

Answer 10

Sieving
Impingement
Attractive forces
Auto filtration

Question 11

The process by which material are retained by filter medium is

Answer 11

Filtration mechanism

Question 12

…is the surface in which material is deposited

Answer 12

Filter media

Question 13

The main type of filter used for removing material from gases is

Answer 13

Deep filter

Question 14

The type of filter used in impingement is

Answer 14

Deep filter

Question 15

Forces that exert sufficient hold on particles to retain them on filter medium is

Answer 15

Attractive forces

Question 16

Filtered material can be called

Answer 16

Filter cake

Question 17

Mechanism used in deep filtration are entanglement by

Answer 17

Adsorption
Physical restrictions of solid materials

Question 18

Two types of filtration are

Answer 18

Surface/screen filtration
Depth filtration

Question 19

Mechanism of surface filtration are

Answer 19

Impingement
Sieve/straining

Question 20

Materials used for screen are

Answer 20

Woven seives
Plates with holes

Question 21

Which equation considers filtration as a streamlined flow of liquid under pressure through the capillaries

Answer 21

Poiseullie eqn

Question 22

The factors affecting the rate of filtration is given by…eqn

Answer 22

Darcy’s eqn

Question 23

… Depends on the cake characteristic s

Answer 23

Permeability

Question 24

Filter bed
Deep filter
Are applicable to…eqn

Answer 24

Darcy’s

Question 25

Darcy’s eqn is valid for liquid flowing under…

Answer 25

Porous media

Question 26

…eqn is widely used for filtration

Answer 26

Kozeny-carmers(K-C) eqn

Question 27

…works on the principle of connecting units in parallel

Answer 27

Filter press

Question 28

Rate can be increased by

Answer 28

Using large filter paper
Connecting small units in parallel

Question 29

Two methods of overcoming viscosity are

Answer 29

Increasing temperature
Dilution

Question 30

The surface upon which solids are deposited Ina filter is…

Answer 30

Filter medium

Question 31

Selection of filter medium depends on

Answer 31

Purpose of filtration
Quantities

Question 32

Materials for filter media are

Answer 32

Woven material
Perforated stainless steel plate
Bed of granular slid
Membrane filter media

Question 33

Woven material of filter media can be classified as

Answer 33

Fiber/wool/nylon etc

Question 34

The most commonly used filter is

Answer 34

Cotton

Question 35

Preferred filter media for pharmaceutical use

Answer 35

Nylon

Question 36

Pores of metafilter serve as …

Answer 36

Channel

Question 37

The choice of fiber depends on…

Answer 37

Chemical reactivity with slurry

Question 38

Advantages of nylon over cotton

Answer 38

Small negligible absorption property
Unaffected by moc