Moore filter is a __________ filter.

mesh screen meansopenings per

__________ is the most commonly used 'filter aid'.

Gravity settling process is not involved in the working of a

Sulphuric acid mist is arrested by using a __________ scrubber.

For a non-spherical particle, the sphericity

Shape factor for a cylinder whose length equals its diameter is

Screen capacity is not a function of

Coal is finally pulverised tomesh size for burning in boilers by a

__________ are used for the separation of coarse particles from a slurry of fine particles.

Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is

Froth floatation is the most suitable for treating

The main size reduction operation in ultrafine grinders is

In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is

In case of a hammer crusher, the

Dust laden air can be purified using a

Which of the following is a vacuum filter ?

Pine oil used in froth floatation technique acts as a/an

Crushing efficiency is the ratio of the

Fibrous material is broken by a

__________ is the most suitable for compounding rubber and plastic solids.

Ball mill is used for

In case of a hammer crusher,

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

The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size )

In case of a ball mill,

Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a __________ conveyor.

Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its

Cement clinker is reduced to fine size by a

Equivalent diameter of a particle is the diameter of the sphere having the same

If dp is the equivalent diameter of a non-spherical particle, V_p its volume and sp its surface area, then its sphericity is Φ_s is defined by

Energy consumed for crushing one ton of material ranges from __________ kWh.

Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm)

The crushed material received for separation is called feed or

Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )

For transporting pasty material, one will use a/an

Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a

Vacuum is applied in __________ zone, in case of a general type continuous rotary drum vacuum filter.

For spheres, volume shape factor is given by

Pick out the wrong statement.

A tube mill compared to a ball mill

Which of the follwoing mechanical conveyors does not come under the division 'scrapers' ?

Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( >centipoise) ?

Trommels separate a mixture of particles depending on their

__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.

Which of the follwoing mechanical conveyors does not come under the division 'scrapers' ?