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Mechanical Operations

Mechanical Operations
Which of the following is not categorised as a "mechanical operation"?

Humidification
Filtration
Agitation
Size enlargement

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Mechanical Operations
Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( > 50000 centipoise)?

Curved blade turbine
Helical screw
Propeller
Flat blade turbine

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Mechanical Operations
A straight line is obtained on plotting reciprocal of filtration rate vs. the volume of filtrate for __________ flow of filtrate.

Compressible cake and turbulent
Compressible cakes and laminar
Incompressible cake and turbulent
Incompressible cake and laminar

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Mechanical Operations
Traces of liquid tar fog present in coke oven gas is separated using

Cyclone separator
None of these
Strainer
Electrostatic precipitator

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Mechanical Operations
For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the __________ filter.

Shell & leaf
Plate & frame
Rotary vacuum
Sand

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Mechanical Operations
Removal of activated carbon from glycerine is done by

Rotary vacuum filter
Plate and frame filter
None of these
Batch basket centrifuge

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