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
A cake is divided into 18 pieces.If Rehana takes 1/3 of the cake and Rahim takes 1/3 of the cake left , how many pieces are left?
A 8
B 6
C 4
D 10
Farhana has a cake recipe which states that the cake should be baked in a pan 8 inches in diameter. If farhana wants to use the recipe to make a cake of same depth but 12 inches in diameter,by what factor she should multiply the recipe ingredients?
A 2.25
B 2.5
C 2.75
D 2
Aruna cut a cake into two halves and cuts one half into smaller pieces of equal size. Each of the small pieces is twenty grams in weight. If she has seven pieces of the cake in all with her, how heavy was the original cake ?
A 120 grams
B 140 grams
C 240 grams
D 280 grams
E None of these
A cake is divided into 18 pieces. If Rehana takes 1 / 3rd of the cake and Rashed takes 1 /3rd  of the cake left, how many pieces are left?
A 8
B 6
C 4
D 10
A cake is divided into 18 pieces. If Rehana takes 1/3 of the cake and Rashed takes 1/3 of the cake left, how many pieces are left? 
A 8
B 6
C 4
D 10
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
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)
Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface.
A Plane
B Curved
C Ribbed
D Either A or B
In filtration, the use of 'filter aid' helps in
A Reducing the filtration pressure
B Accelerating the rate of filtration
C Deplugging the filter medium
D Enhancing the cake porosity in case of a dense impermeable cake

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