A. Pressure filter
B. Gravity filter
C. Centrifugal filter
D. Vacuum filter
Related Mcqs:
- Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate) ?
A. S
B. 1/R
C. 1/μ
D. All A., B. & C. - Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an________________?
A. Air filter
B. Bag filter
C. Venturi scrubber
D. Hydrocyclones - Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids (> 50000 centipoise) ?
A. Propeller
B. Helical screw
C. Flat blade turbine
D. Curved blade turbine - 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 - Which of the following is not accomplished by agitation of liquids in agitators ?
A. Dispersing gas in liquid
B. Blending of immiscible liquids
C. Dispersing immiscible liquid in form of emulsion
D. Suspending solid particles - During agitation of liquids, the_________________?
A. Froude number is independent for the curves between power number and Reynolds number in
baffled system
B. Power number becomes independent of impellers Reynolds number at high Reynolds number,
but is dependent on the geometry of the impeller
C. Froude number is used to account for the effect of surface (e.g., the centre vortex) on the
power number
D. All A., B. and C. - The process by which fine solids is removed from liquids is termed as _____________________?
A. Decantation
B. Flocculation
C. Sedimentation
D. Classification - During agitation of liquids, power consumption during laminar flow is not proportional to the ________________?
A. Density of the liquid
B. Viscosity of the liquid
C. Cube of impeller diameters
D. Square of rotational speed - Highly viscous liquids & pastes are agitated by________________?
A. Propellers
B. Turbine agitators
C. Multiple blade paddles
D. None of these - Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed ?
A. Wet grinding in low viscous suspension
B. Wet grinding in high viscous suspension
C. Dry grinding of large particles (upto 1.25 cms)
D. Dry grinding of large particles in un-baffed mills
