Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m)

Mechanical Operations
Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m)

3.6 V.W.Dr/ρ

3.6 V.W.Dr.ρ

3.6 W.Dr.ρ

3.6 V.W. ρ

3.6 V.W.Dr/ρ

3.6 V.W.Dr.ρ

3.6 W.Dr.ρ

3.6 V.W. ρ

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Mechanical Operations
The main differentiation factor between tube mill and ball mill is the

Length to diameter ratio

Final product size

Operating speed

Size of the grinding media

Length to diameter ratio

Final product size

Operating speed

Size of the grinding media

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Mechanical Operations
A widely used size reduction equipment for __________ is Bradford breaker.

Iron core

Talc

Coal

Wheat

Iron core

Talc

Coal

Wheat

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During agitation of liquids, the

Froude number is independent for the curves between power number and Reynolds number in baffled system

All of these

Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number

Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller

Froude number is independent for the curves between power number and Reynolds number in baffled system

All of these

Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number

Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller

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Which of the following comes in the category of primary crusher for hard and tough stone?

None of these

Cone crusher

Jaw crusher

Gyratory crusher

None of these

Cone crusher

Jaw crusher

Gyratory crusher

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The porosity of a compressible cake is

Same throughout the thickness of cake

Minimum at the filter medium

Maximum at the filter medium

Minimum at the upstream face

Same throughout the thickness of cake

Minimum at the filter medium

Maximum at the filter medium

Minimum at the upstream face

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Mechanical Operations

Mechanical Operations The main differentiation factor between tube mill and ball mill is the

Mechanical Operations A widely used size reduction equipment for __________ is Bradford breaker.

Mechanical Operations During agitation of liquids, the

Mechanical Operations Which of the following comes in the category of primary crusher for hard and tough stone?

Mechanical Operations The porosity of a compressible cake is

Mechanical Operations
The main differentiation factor between tube mill and ball mill is the

Mechanical Operations
A widely used size reduction equipment for __________ is Bradford breaker.

Mechanical Operations
During agitation of liquids, the

Mechanical Operations
Which of the following comes in the category of primary crusher for hard and tough stone?

Mechanical Operations
The porosity of a compressible cake is