Mechanical Operations

The opening of a 200 mesh screen (Taylor series) is__________________?

Byadmin February 18, 2019August 22, 2021

The opening of a 200 mesh screen (Taylor series) is__________________?

A. 0.0074 cm
B. 0.0074 mm
C. 0.0047 cm
D. 74 milli-microns

Mechanical Operations

The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle) ?

The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle) ?

A. 6/D.ρ
B. 2/D.ρ
C. 4/D.ρ
D. 12/D.ρ

Read More The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle) ?
Mechanical Operations

The sphericity of a solid particle of cubical shape is ___________________?

The sphericity of a solid particle of cubical shape is ___________________?

A. π
B. (π/6)1/3
C. (π/6)1/2
D. π/3

Read More The sphericity of a solid particle of cubical shape is ___________________?
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

Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the___________________?

Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the___________________?

A. Coagulation
B. Flocculation
C. Sedimentation
D. Clarification

Read More Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the___________________?
Mechanical Operations

The material is crushed in a gyratory crusher by the action of__________________?

The material is crushed in a gyratory crusher by the action of__________________?

A. Impact
B. Compression
C. Attrition
D. Cutting

Read More The material is crushed in a gyratory crusher by the action of__________________?
Mechanical Operations

Which of the following is not a non-metalliferous mineral ?

Which of the following is not a non-metalliferous mineral ?

A. Calcite
B. Fluorspar
C. Quartz
D. Cassiterite

Read More Which of the following is not a non-metalliferous mineral ?

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