CHEMICAL PROCESS QUIZ

Filtration capacity of a rotary drum vacuum filter depends upon the

Both A & B

Neither A nor B

Characteristics of the feed slurry

Cake thickness

TRUE ANSWER : ?
YOUR ANSWER : ?

Balls for ball mills are never made of

Forged/cast steel

Lead

Cast iron

Alloy steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Optimum ratio of operating speed to critical speed of a trommel is

1.5-2.5

1.33-1.45

0.33-0.45

0.5-2

TRUE ANSWER : ?
YOUR ANSWER : ?

Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of 'scrappers'?

Bucket conveyor

Both B and C

Flight conveyor

Screw conveyor

TRUE ANSWER : ?
YOUR ANSWER : ?

The optimum moisture content in solids to be crushed/ground ranges from __________ percent.

8 to 10

10 to 15

15 to 20

3 to 4

TRUE ANSWER : ?
YOUR ANSWER : ?

Screen capacity is not a function of

Atmospheric humidity

Screening mechanism

Its openings size

Screening surface

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following parts of a jaw crusher is subjected to maximum wear and tear during its operation?

Check plates

Jaw plates

Toggles

Crush shaft

TRUE ANSWER : ?
YOUR ANSWER : ?

Crushing efficiency is the ratio of the

Energy fed to the machine to the surface energy created by crushing

Energy absorbed by the solid to that fed to the machine

Surface energy created by crushing to the energy absorbed by the solid

Energy absorbed by the solid to the surface energy created by crushing

TRUE ANSWER : ?
YOUR ANSWER : ?

Vertical transportation of materials can be done by a/an

Bucket elevator

Both B & C

Apron conveyor

Pneumatic conveyor

TRUE ANSWER : ?
YOUR ANSWER : ?

Size reduction of __________ is accomplished in steam heated rollers and roll crushers.

Gums

Hard rubber

Resins

Waxes

TRUE ANSWER : ?
YOUR ANSWER : ?