Related Questions

The cake resistance increases steadily with the time of filtration in a plate and frame filter employing constant __________ filtration.
A Rate
B Pressure
C Both A & B
D Neither A nor B
During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration
A At time zero
B At the end of filtration
C When half the filtrate has been obtained
D At the end of filtration, but decreases with time subsequently
Toggle Filter আইকনটি-i. Remove filter হিসেবে কাজ করেii. Undo filter হিসেবে কাজ করে iii. Apply filter হিসেবে কাজ করেনিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is
A $$\frac{1}{2}$$w2.R2.ρL
B $$\frac{1}{2}$$w2.δ2.ρL
C $$\frac{1}{2}$$w2.δ.ρL(2R + δ)
D $$\frac{1}{2}$$w2.R.ρL(R + 2δ)
Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration.
A Constant rate
B Varying pressure
C Varying rate
D Constant pressure
Filtration of water in a paper mill is done by a/an __________ filter.
A Open sand
B Plate and frame
C Vacuum leaf
D Sparkler
The controlling resistance in a rotary drum vacuum filter is the __________ resistance.
A Piping
B Cake
C Filter medium
D None of these
During filtration operation, the filtrate encounters the resistance of the
A filter medium
B cake
C channel carrying the slurry to then upstream side of the cake and filtrate away from the filter medium
D all A, B and C
Filter medium resistance is that offered by the
A Filter cloth
B Embedded particles in the septum
C Filter cloth and the embedded particle collectively
D None of these
The unit of filter medium resistance is
A Cm-1
B Gm/cm-1
C Cm/gm-1
D Gm-1

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