Which of the following size reduction equipments employs mainly attrition for ultrafine grinding?

Mechanical Operations
Which of the following size reduction equipments employs mainly attrition for ultrafine grinding?

All of these

Jet mills

Micronizer

Fluid energy mill

All of these

Jet mills

Micronizer

Fluid energy mill

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Mechanical Operations
Pick out the wrong statement pertaining to the turbine agitator.

Pitched blade turbine agitator gives only radial flow with complete absence of the axial flow

Turbine agitator should be located at a height not less than one agitator diameter length from the bottom. If the depth of liquid in the tank is more than twice the agitator diameter, two agitators sh

Generally, the diameter of the agitator is kept between l/3rd to l/6th of the tank diameter while the blade length is l/4th of agitator diameter (with central disc, it is l/8th of the agitator diamete

Recommended peripheral speed for the turbine agitator is 200-250 metres/minute

Pitched blade turbine agitator gives only radial flow with complete absence of the axial flow

Turbine agitator should be located at a height not less than one agitator diameter length from the bottom. If the depth of liquid in the tank is more than twice the agitator diameter, two agitators sh

Generally, the diameter of the agitator is kept between l/3rd to l/6th of the tank diameter while the blade length is l/4th of agitator diameter (with central disc, it is l/8th of the agitator diamete

Recommended peripheral speed for the turbine agitator is 200-250 metres/minute

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Mechanical Operations
The energy consumed by a ball mill depends on

Its speed

All of these

Its ball load

The density of the material being ground

Its speed

All of these

Its ball load

The density of the material being ground

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Mechanical Operations
Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m³)

3.6 W.D.V.ρ

3.6 D.V.ρ

3.6 W.D.V.

3.6 W.V.ρ

3.6 W.D.V.ρ

3.6 D.V.ρ

3.6 W.D.V.

3.6 W.V.ρ

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Mechanical Operations
In case of grinding in a ball mill

Grinding cost and power requirement increases with increasing fineness of the products

Wet grinding achieves a finer product size than dry grinding

Its capacity decreases with increasing fineness of the products

All of these

Grinding cost and power requirement increases with increasing fineness of the products

Wet grinding achieves a finer product size than dry grinding

Its capacity decreases with increasing fineness of the products

All of these

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Mechanical Operations
Which of the following is a batch sedimentation equipment?

Dry cyclone separator

Filter thickener

Rotary sprayer scrubber

Dust catcher

Dry cyclone separator

Filter thickener

Rotary sprayer scrubber

Dust catcher

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Mechanical Operations

Mechanical Operations Which of the following size reduction equipments employs mainly attrition for ultrafine grinding?

Mechanical Operations Pick out the wrong statement pertaining to the turbine agitator.

Mechanical Operations The energy consumed by a ball mill depends on

Mechanical Operations Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m³)

Mechanical Operations In case of grinding in a ball mill

Mechanical Operations Which of the following is a batch sedimentation equipment?

Mechanical Operations
Which of the following size reduction equipments employs mainly attrition for ultrafine grinding?

Mechanical Operations
Pick out the wrong statement pertaining to the turbine agitator.

Mechanical Operations
The energy consumed by a ball mill depends on

Mechanical Operations
Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m³)

Mechanical Operations
In case of grinding in a ball mill

Mechanical Operations
Which of the following is a batch sedimentation equipment?