Mechanical Operations
Production rate __________ with increased fineness, with a given energy input to the size reduction machine.

Decreases
May increase or decrease; depends on the machine
Remains unchanged
Increases

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Mechanical Operations
For a non-spherical particle, the sphericity

Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle
Has the dimension of length
Is always less than 1
Is defined as the ratio of surface area of a sphere having the same volume as the particle to the actual surface area of the particle

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Mechanical Operations
A filter press is

Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure
A batch filter
Having prohibitively high maintenance cost
Not suitable, if the liquid is the main product

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