Mechanical Operations

Ball mills and tube mills with flint or porcelain balls are used for size reduction of_______________?

Byadmin February 18, 2019August 22, 2021

Ball mills and tube mills with flint or porcelain balls are used for size reduction of_______________?

A. Asbestos
B. Rubber
C. Non-metallic ores
D. Limestone

Mechanical Operations

The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the _____________ filter?

The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the _____________ filter?

A. Vacuum
B. Sand
C. Plate & frame
D. Rotary

Read More The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the _____________ filter?
Mechanical Operations

A widely used size reduction equipment for ______________ is Bradford breaker?

A widely used size reduction equipment for ______________ is Bradford breaker?

A. Talc
B. Coal
C. Iron core
D. Wheat

Read More A widely used size reduction equipment for ______________ is Bradford breaker?
Mechanical Operations

_______________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals?

_______________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals?

A. Separation efficiency
B. Selectivity index
C. Concentration ratio
D. None of these

Read More _______________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals?
Mechanical Operations

A fluid energy mill is used for __________________?

A fluid energy mill is used for __________________?

A. Cutting
B. Grinding
C. Ultra-grinding
D. Crushing

Read More A fluid energy mill is used for __________________?
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

Which of the following gives the crushing energy required to create new surface ?

Which of the following gives the crushing energy required to create new surface ?

A. Taggarts rule
B. Fick’s law
C. Rittinger’s Law
D. None of these

Read More Which of the following gives the crushing energy required to create new surface ?

Similar Posts