MECHANICAL OPERATIONS QUIZ

During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration

When half the filtrate has been obtained

At the end of filtration, but decreases with time subsequently

At time zero

At the end of filtration

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ centrifuge is the most suitable for separation of non-friable crystals.

Tubular bowl

Perforated horizontal basket continuous

Disc-bowl

Suspended batch basket

TRUE ANSWER : ?
YOUR ANSWER : ?

Colloidal mills are used for __________ grinding.

Coarse

Ultrafine

Fine

Intermediate

TRUE ANSWER : ?
YOUR ANSWER : ?

Screen capacity is not a function of

Screening surface

Atmospheric humidity

Its openings size

Screening mechanism

TRUE ANSWER : ?
YOUR ANSWER : ?

A tube mill compared to a ball mill

Produces a coarser product

Has a higher diameter/length ratio

Has a higher length/diameter ratio

Uses much larger balls

TRUE ANSWER : ?
YOUR ANSWER : ?

For sizing of fine materials, the most suitable equipment is a

Vibrating screen

Shaking screen

Trommel

Grizzly

TRUE ANSWER : ?
YOUR ANSWER : ?

The inlet pressure in a constant rate filtration

Remains constant

Increases continuously

None of these

Decreases gradually

TRUE ANSWER : ?
YOUR ANSWER : ?

The grinding in a hammer crusher takes place due to the

Both A & B

Attrition

Neither A nor B

Impact

TRUE ANSWER : ?
YOUR ANSWER : ?

Trommels employ __________ for screening of materials.

Woven wire screen

Fibrous cloth

None of these

Punched plate

TRUE ANSWER : ?
YOUR ANSWER : ?

The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a

None of these

Boundary mixer

Propeller agitator

Sharpies centrifuge

TRUE ANSWER : ?
YOUR ANSWER : ?

↑