Mechanical Operations

Which of the following is a batch sedimentation equipment ?

Byadmin February 18, 2019August 23, 2021

Which of the following is a batch sedimentation equipment ?

A. Dust catcher
B. Filter thickener
C. Dry cyclone separator
D. Rotary sprayer scrubber

Mechanical Operations

As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?

As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?

A. LS
B. 93 LS
C. 250 LS
D. √(LS)

Read More As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?
Mechanical Operations

Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?

Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?

A. British standard screens
B. German standard screens (DIN 1171) etc
C. American standard screens (ASTM and Tyler standard screens)
D. All A., B. and C.

Read More Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?
Mechanical Operations

Which of the following is not categorised as a “mechanical operation”?

Which of the following is not categorised as a “mechanical operation”?

A. Agitation
B. Filtration
C. Size enlargement
D. Humidification

Read More Which of the following is not categorised as a “mechanical operation”?
Mechanical Operations

Size reduction of _____________ is accomplished in steam heated rollers and roll crushers?

Size reduction of _____________ is accomplished in steam heated rollers and roll crushers?

A. Resins
B. Gums
C. Hard rubber
D. Waxes

Read More Size reduction of _____________ is accomplished in steam heated rollers and roll crushers?
Mechanical Operations

Which of the following terminology is not used for size reduction of materials to fine sizes or powders ?

Which of the following terminology is not used for size reduction of materials to fine sizes or powders ?

A. Comminution
B. Dispersion
C. Pulverisation
D. Compression

Read More Which of the following terminology is not used for size reduction of materials to fine sizes or powders ?
Mechanical Operations

Solid particles separation based on the difference in their flow velocities through fluids is termed as the__________________?

Solid particles separation based on the difference in their flow velocities through fluids is termed as the__________________?

A. Clarification
B. Classification
C. Elutriation
D. Sedimentation

Read More Solid particles separation based on the difference in their flow velocities through fluids is termed as the__________________?

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