Mechanical Operations

Feed size of ≥ 25 cms can be accepted by _______________________?

Byadmin February 18, 2019August 22, 2021

Feed size of ≥ 25 cms can be accepted by _______________________?

A. Ball mill
B. Rod mill
C. Fluid energy mill
D. Jaw crusher

Mechanical Operations

Paddle agitator_________________?

Paddle agitator_________________?

A. Is suitable for mixing low viscosity liquids
B. Produces axial flow
C. Moves at very high speed
D. None of these

Read More Paddle agitator_________________?
Mechanical Operations

The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size)?

The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size)?

A. c/s
B. s/c
C. s . c
D. 1/s . c

Read More The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size)?
Mechanical Operations

Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?

A. Bond’s crushing law
B. Kick’s law
C. Rittinger’s law
D. None of these

Read More Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?
Mechanical Operations

To produce talcum powder, use_____________________?

To produce talcum powder, use_____________________?

A. Ball mill
B. Hammer mill
C. Jet mill
D. mill

Read More To produce talcum powder, use_____________________?
Mechanical Operations

Size measurement of ultrafine particles can be best expressed in terms of___________________?

Size measurement of ultrafine particles can be best expressed in terms of___________________?

A. Centimetre
B. Screen size
C. Micron
D. Surface area per unit mass

Read More Size measurement of ultrafine particles can be best expressed in terms of___________________?
Mechanical Operations

Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are________________?

Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are________________?

A. Carbonates
B. Sulphates
C. Silicates & phosphates
D. Bi-carbonates

Read More Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are________________?

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