31.
Pick out the wrong statement pertaining to the turbine agitator.

32.
A gravity decanter is meant for the separation of two __________ density.

34.
Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( > 50000 centipoise)?

35.
Addition of filter aid to the slurry before filtration is done to ...... of the cake.

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