MECHANICAL OPERATIONS QUIZ

To produce talcum powder, use

Ball mill

Pin mill

Hammer mill

Jet mill

TRUE ANSWER : ?
YOUR ANSWER : ?

Filter aid is used to

Act as a support base for the septum

Increase the rate of filtration

Increase the porosity of the cake

Decrease the pressure drop

TRUE ANSWER : ?
YOUR ANSWER : ?

The main differentiation factor between tube mill and ball mill is the

Length to diameter ratio

Operating speed

Size of the grinding media

Final product size

TRUE ANSWER : ?
YOUR ANSWER : ?

The controlling resistance in a rotary drum vacuum filter is the __________ resistance.

None of these

Piping

Cake

Filter medium

TRUE ANSWER : ?
YOUR ANSWER : ?

Ultrafine grinders operate principally by

Slow compression

Impact

Cutting action

Attrition

TRUE ANSWER : ?
YOUR ANSWER : ?

A tube mill as compared to a ball mill

All of these

Employs smaller balls

Gives finer size reduction but consumes more power

Has larger length/diameter ratio (>2 as compared to 1 for ball mill)

TRUE ANSWER : ?
YOUR ANSWER : ?

The most suitable equipment for the transportation of 200 mesh size particles is a

Screw conveyor

Bucket elevator

Belt conveyor

Pneumatic conveyor

TRUE ANSWER : ?
YOUR ANSWER : ?

The study on washability of coal is done by using the __________ technique.

Tabling

Heavy media separation

None of these

Elutriation

TRUE ANSWER : ?
YOUR ANSWER : ?

Gelatinous solid (which plug the septum) can be filtered by a __________ filter.

Vacuum leaf

Plate and frame

Sparkler

Precoat

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following oxides is not present in hematite iron ore?

Calcium oxide

Titanium oxide

Cobalt oxide

Manganese oxide

TRUE ANSWER : ?
YOUR ANSWER : ?

↑