A. Sand bed filter
B. Plate and frame filter press
C. Vacuum filter
D. Batch basket centrifuge
Related Mcqs:
- Separation of solid suspended in liquid into a supernatant clear liquid and a denser slurry employs a process termed as the___________________?
A. Coagulation
B. Flocculation
C. Sedimentation
D. Clarification - Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is_______________?
A. Added to the feed slurry
B. Pre-coated on the filter medium prior to filtration
C. Separated from the cake by dissolving solids or by burning it off
D. All A, B. & C. - Which of the following is not used as a filter medium in case of corrosive liquids?
A. Nylon
B. Glass cloth
C. Metal cloth of monel or stainless steel
D. Cotton fabric - The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the _____________ filter?
A. Vacuum
B. Sand
C. Plate & frame
D. Rotary - For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the ______________ filter?
A. Plate & frame
B. Shell & leaf
C. Sand
D. Rotary vacuum - __________ conveyor is the most suitable for short distance transportation of non-abrasive loose materials like garbage, grain, food wastes etc?
A. Flight
B. Screw
C. Drag
D. Belt - The capacity of a classifier in ‘tons of solid/hr’ is given by (where, A = cross-sectional area in m2, V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3)_________________?
A. 3.6 AVS.ρ
B. 3.6 A.V.ρ
C. 3.6 A.S. ρ
D. 3.6 AVS/ρ
Answer: Option - The basic filtration equation is given as dt/dV = (μ/A ΔP). [(α .CV/A) + Rm], where, V is volume of the filtrate; A is the filtration area, a is specific cake resistance, μ is viscosity of the filtrate, and C is the concentration of the solids in the feed slurry. In a 20 minutes constant rate filtration, 5 m3 of filtrate was obtained. If this is followed by a constant pressure filtration, how much more time in minutes, it will take for another 5 m3 of filtrate to be produced? Neglect filter medium resistance, Rm; assume incompressible cake ?
A. 10
B. 20
C. 25
D. 30 - For separation of sugar solution from settled out mud, we use a ___________________ filter?
A. Sparkler
B. Plate and frame
C. Centrifugal
D. Rotary drum vacuum - Tank filter (e.g., Nutsche filter) is___________________?
A. A high pressure filter
B. A continuous filter
C. Used for small scale filtration work
D. A leaf filter
