A. Stainless steel
B. Cast iron
C. High speed steel
D. Wooden plank
Related Mcqs:
- 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. - Shell and leaf filter as compared to plate and frame filter _____________________?
A. Entails less labor cost
B. Facilitates filtration under higher pressure
C. Provides more effective washing
D. All A., B. & C. - Flow of filtrate through the cake in a plate and frame filter press is best described by the ______________ equation?
A. Kozeny-Carman
B. Hagen-Poiseuille’s
C. Fanning’s
D. Kremser - In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is__________________?
A. 4
B. 1/4
C. 1
D. 1/2 - 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. - In case of a plate and frame filter press, filtrate flow through the cake follows _______________ flow?
A. Plug
B. Turbulent
C. Laminar
D. None of these - 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. - Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to ____________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance)?
A. √μ
B. 1/√μ
C. 1/μ
D. 1/μ2 - 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 - The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size)?
A. c/s
B. s/c
C. s . c
D. 1/s . c
