Vacuum is applied in __________ zone, in case of a general type continuous rotary drum vacuum filter(A) Filtering(B) Washing(C) Drying(D) All (A), (B) & (C).

Vacuum is applied in __________ zone, in case of a general type
continuous rotary drum vacuum filter.
(A) Filtering
(B) Washing
(C) Drying
(D) All (A), (B) & (C)
by

1 Answer

Answer :

(D) All (A), (B) & (C)
by

Related questions

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/μ

Description : 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/μ

Last Answer : (B) 1/√μ

The speed of a rotary drum vacuum filter may be about __________ rpm. (A) 1 (B) 50 (C) 100 (D) 500

Description : The speed of a rotary drum vacuum filter may be about __________ rpm. (A) 1 (B) 50 (C) 100 (D) 500

Last Answer : (A) 1

__________ is used for producing a thick suspension from a thin slurry. (A) Cartridge filter (B) Rotary drum vacuum filter (C) Pressure filter thickener (D) Plate and frame filter press

Description : __________ is used for producing a thick suspension from a thin slurry. (A) Cartridge filter (B) Rotary drum vacuum filter (C) Pressure filter thickener (D) Plate and frame filter press

Last Answer : (C) Pressure filter thickener

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

Description : 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

Last Answer : (C) Centrifugal

The controlling resistance in a rotary drum vacuum filter is the __________ resistance.(A) Piping (B) Cake (C) Filter medium (D) None of these

Description : The controlling resistance in a rotary drum vacuum filter is the __________ resistance. (A) Piping (B) Cake (C) Filter medium (D) None of these

Last Answer : (B) Cake

Filtration capacity of a rotary drum vacuum filter depends upon the (A) Cake thickness (B) Characteristics of the feed slurry (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Filtration capacity of a rotary drum vacuum filter depends upon the (A) Cake thickness (B) Characteristics of the feed slurry (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

Percentage of drum submerged in the slurry in case of rotary drum filter is (A) 3 (B) 30 (C) 85 (D) 25

Description : Percentage of drum submerged in the slurry in case of rotary drum filter is (A) 3 (B) 30 (C) 85 (D) 25

Last Answer : (B) 30

For continuous drying of granular or crystalline material, the dryer used is the __________ dryer.(A) Tunnel (B) Tray (C) Rotary (D) None of these

Description : For continuous drying of granular or crystalline material, the dryer used is the __________ dryer. (A) Tunnel (B) Tray (C) Rotary (D) None of these

Last Answer : (C) 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 & lea(C) Sand(D) Rotary vacuum

Description : 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 & lea (C) Sand (D) Rotary vacuum

Last Answer : (C) Sand

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

Description : 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

Last Answer : (B) Sand

Drying of refractory is normally carried out in a __________ dryer. (A) Open pan (B) Tray (C) Rotary vacuum (D) Truck/tunnel

Description : Drying of refractory is normally carried out in a __________ dryer. (A) Open pan (B) Tray (C) Rotary vacuum (D) Truck/tunnel

Last Answer : (D) Truck/tunnel

Large scale drying of wheat is done in a __________ dryer. (A) Fluidised bed (B) Spouted bed (C) Tray (D) Vacuum rotary

Description : Large scale drying of wheat is done in a __________ dryer. (A) Fluidised bed (B) Spouted bed (C) Tray (D) Vacuum rotary

Last Answer : (B) Spouted bed

For classification of potable (drinking) water, we use a __________ filter. (A) Gravity sand (B) Plate and frame (C) Vacuum leaf (D) Rotary vacuum

Description : For classification of potable (drinking) water, we use a __________ filter. (A) Gravity sand (B) Plate and frame (C) Vacuum leaf (D) Rotary vacuum

Last Answer : (A) Gravity sand

Insufficient washing of sand grains in a rapid sand filter causes (A) Air binding (B) Shrinkage of filtering media (C) Mud balls (D) Expansion of filtering media

Description : Insufficient washing of sand grains in a rapid sand filter causes (A) Air binding (B) Shrinkage of filtering media (C) Mud balls (D) Expansion of filtering media

Last Answer : (C) Mud balls

With increase in drum speed, in a rotary drum filter, the filtration rate (A) Increases(B) Increases linearly(C) Decreases(D) Is not affected

Description : With increase in drum speed, in a rotary drum filter, the filtration rate (A) Increases (B) Increases linearly (C) Decreases (D) Is not affected

Last Answer : (A) Increases

Which of the following may prove unsuitable for filtering volatile liquids? (A) Pressure filter (B) Gravity filter (C) Centrifugal filter (D) Vacuum filter

Description : Which of the following may prove unsuitable for filtering volatile liquids? (A) Pressure filter (B) Gravity filter (C) Centrifugal filter (D) Vacuum filter

Last Answer : (D) Vacuum filter

Removal of activated carbon from glycerine is done by (A) Plate and frame filter (B) Rotary vacuum filter (C) Batch basket centrifuge (D) None of these

Description : Removal of activated carbon from glycerine is done by (A) Plate and frame filter (B) Rotary vacuum filter (C) Batch basket centrifuge (D) None of these

Last Answer : (A) Plate and frame filter

Which of the following is a vacuum filter? (A) Filter press (B) Rotary disc filter (C) Batch basket centrifuge (D) Tank filter (Nutsche filter)

Description : Which of the following is a vacuum filter? (A) Filter press (B) Rotary disc filter (C) Batch basket centrifuge (D) Tank filter (Nutsche filter)

Last Answer : (B) Rotary disc filter

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

Description : 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

Last Answer : (A) Air filter

Free flowing granular materials can be best dried in a __________ drier. (A) Rotary (B) Cylinder (C) Drum (D) Freeze

Description : Free flowing granular materials can be best dried in a __________ drier. (A) Rotary (B) Cylinder (C) Drum (D) Freeze

Last Answer : (A) Rotary

Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers

Description : Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers

Last Answer : (B) In sedimentation tanks equipped with mechanical scrapper

Large scale drying of sugar is done in a __________ dryer. (A) Spouted bed (B) Tray (C) Rotary (D) Truck

Description : Large scale drying of sugar is done in a __________ dryer. (A) Spouted bed (B) Tray (C) Rotary (D) Truck

Last Answer : (C) Rotary

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)

Description : 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)

Last Answer : (D) All (A), (B) & (C)

Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is (A) Inversely proportional to viscosity of gas (B) Proportional to the viscosity & density of the gas (C) Proportional to the pressure of the gas (D) Both (B) and (C)

Description : Bag filter design is predominantly dependent on gas temperature, as it affects the gas density & viscosity and the selection of filtering material. The pressure drop in a bag filter is (A) Inversely proportional to ... the gas (C) Proportional to the pressure of the gas (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer. (A) Rotary (B) Vacuum (C) Tunnel (D) Tray

Description : Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer. (A) Rotary (B) Vacuum (C) Tunnel (D) Tray

Last Answer : (A) Rotary

Large quantity of silica gel is normally dried in a __________ dryer. (A) Freeze (B) Through circulation (C) Rotary vacuum (D) Tray

Description : Large quantity of silica gel is normally dried in a __________ dryer. (A) Freeze (B) Through circulation (C) Rotary vacuum (D) Tray

Last Answer : (B) Through circulation

A mono pump is a __________ pump. (A) Centrifugal (B) Piston (C) Positive acting rotary (D) A group of vacuum

Description : A mono pump is a __________ pump. (A) Centrifugal (B) Piston (C) Positive acting rotary (D) A group of vacuum

Last Answer : (C) Positive acting rotary

Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg. (A) 1 (B) 0.1 (C) 0.01 (D) 0.001

Description : Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg. (A) 1 (B) 0.1 (C) 0.01 (D) 0.001

Last Answer : (C) 0.01

To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump. (A) Reciprocating (B) Centrifugal (C) Volute (D) Rotary vacuum

Description : To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump. (A) Reciprocating (B) Centrifugal (C) Volute (D) Rotary vacuum

Last Answer : (A) Reciprocating

Moore filter is a __________ filter. (A) Leaf (B) Press (C) Rotary (D) Sand

Description : Moore filter is a __________ filter. (A) Leaf (B) Press (C) Rotary (D) Sand

Last Answer : (A) Leaf

Advantage of continuous drying over batch drying is that the (A) Drying cost per unit weight of dried product is less (B) Product with more uniform moisture content is produced (C) Equipment size required is smaller (D) All 'a', 'b' & 'c'

Description : Advantage of continuous drying over batch drying is that the (A) Drying cost per unit weight of dried product is less (B) Product with more uniform moisture content is produced (C) Equipment size required is smaller (D) All 'a', 'b' & 'c'

Last Answer : (D) All 'a', 'b' & 'c'

Sedimentation on commercial scale occurs in (A) Classifiers (B) Thickeners (C) Rotary drum filters (D) Cyclones

Description : Sedimentation on commercial scale occurs in (A) Classifiers (B) Thickeners (C) Rotary drum filters (D) Cyclones

Last Answer : (C) Rotary drum filters

A slurry is to be dried to produce flaky solid. Which dryer would you recommend? (A) Spray dryer (B) Drum dryer (C) Rotary dryer (D) Dielectric drye

Description : A slurry is to be dried to produce flaky solid. Which dryer would you recommend? (A) Spray dryer (B) Drum dryer (C) Rotary dryer (D) Dielectric drye

Last Answer : (A) Spray dryer

Common salt is generally not produced commonly by __________ method from brine. (A) Freeze drying (B) Electrolytic (C) Solar evaporation (D) Vacuum evaporation

Description : Common salt is generally not produced commonly by __________ method from brine. (A) Freeze drying (B) Electrolytic (C) Solar evaporation (D) Vacuum evaporation

Last Answer : (A) Freeze drying

Flights in a rotary dryer are provided to (A) Lift and shower the solids thus exposing it thoroughly to the drying action of the gas (B) Reduce the residence time of solid (C) Increase the residence time of the solid (D) None of these

Description : Flights in a rotary dryer are provided to (A) Lift and shower the solids thus exposing it thoroughly to the drying action of the gas (B) Reduce the residence time of solid (C) Increase the residence time of the solid (D) None of these

Last Answer : (A) Lift and shower the solids thus exposing it thoroughly to the drying action of the gas

Heat transfer by __________ is almost absent in case of fluidised bed drying operation. (A) Radiation (B) Conduction (C) Convection (D) Both (B) & (C)

Description : Heat transfer by __________ is almost absent in case of fluidised bed drying operation. (A) Radiation (B) Conduction (C) Convection (D) Both (B) & (C)

Last Answer : A) Radiation

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)

Description : 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)

Last Answer : (D) All (A), (B) & (C)

Which of the following is not a continuous drier? (A) Drum drier (B) Spray drier (C) Tunnel drier (D) Tray drier

Description : Which of the following is not a continuous drier? (A) Drum drier (B) Spray drier (C) Tunnel drier (D) Tray drier

Last Answer : (D) Tray drier

Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is(A) Not possible in the second case unless vacuum is applied(B) Not possible in the second case unless high pressure is applied(C) More readily done in the second case compared to first one(D) None of these

Description : Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is (A) Not possible in the second ... (C) More readily done in the second case compared to first one (D) None of these

Last Answer : (C) More readily done in the second case compared to first one

Will filtering my pond with a 1 micron filter be unhealthy for my fish?

Description : Will filtering my pond with a 1 micron filter be unhealthy for my fish?

Last Answer : I can't imagine how it would be unhealthy. I also would be shocked if you're able to filter it to the degree that it was bad for them. I suppose it depends on the species of fish. When I took ... aquariums I filtered them until the water was as clear as the glass and the fish did not seem to mind.

What is the proper procedure for suppressing electrical noise in a mobile station? A. Apply shielding and filtering where necessary B. Insulate a all plain sheet metal surfaces from each other C. Apply anti-static spray liberally to all nonmetallic D. Install filter capacitors in series with all dc wiring

Description : What is the proper procedure for suppressing electrical noise in a mobile station? A. Apply shielding and filtering where necessary B. Insulate a all plain sheet metal surfaces from each other C. ... -static spray liberally to all nonmetallic D. Install filter capacitors in series with all dc wiring

Last Answer : A. Apply shielding and filtering where necessary

Rapid sand filter (A) Should be preceded by coagulation and sedimentation (B) Uses rapid sand as filter media(C) Is used after slow sand filtering has been done (D) Can combine disinfection also

Description : Rapid sand filter (A) Should be preceded by coagulation and sedimentation (B) Uses rapid sand as filter media (C) Is used after slow sand filtering has been done (D) Can combine disinfection also

Last Answer : (A) Should be preceded by coagulation and sedimentation

Is better filtering achieved at a high frequency or at a low frequency at the input of the filter?

Description : Is better filtering achieved at a high frequency or at a low frequency at the input of the filter?

Last Answer : High

Gelatinous solid (which plug the septum) can be filtered by a __________ filter. (A) Sparkler (B) Plate and frame (C) Vacuum leaf (D) Pre-coat

Description : Gelatinous solid (which plug the septum) can be filtered by a __________ filter. (A) Sparkler (B) Plate and frame (C) Vacuum leaf (D) Pre-coat

Last Answer : (D) Pre-coat

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

Description : 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

Last Answer : (A) Open sand

In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be (A) At ground level (B) 2 metres above the ground (C) 5 metres above ground (D) 10 metres above ground

Description : In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be ... metres above the ground (C) 5 metres above ground (D) 10 metres above ground

Last Answer : (A) At ground level

Sand is dried in foundries in a _________drier. (A) Rotary (B) Fluidised bed (C) Vacuum (D) Spray

Description : Sand is dried in foundries in a _________drier. (A) Rotary (B) Fluidised bed (C) Vacuum (D) Spray

Last Answer : (B) Fluidised bed

Which of the following is a batch sedimentation equipment? (A) Dust catcher (B) Filter thickener (C) Dry cyclone separator (D) Rotary sprayer scrubber

Description : Which of the following is a batch sedimentation equipment? (A) Dust catcher (B) Filter thickener (C) Dry cyclone separator (D) Rotary sprayer scrubber

Last Answer : (B) Filter thickener

Drying operation under vacuum is carried out to (A) Dry those materials which have very high unbound moisture content (B) Reduce drying temperature (C) Increase drying temperature (D) Dry materials having high bound moisture content

Description : Drying operation under vacuum is carried out to (A) Dry those materials which have very high unbound moisture content (B) Reduce drying temperature (C) Increase drying temperature (D) Dry materials having high bound moisture content

Last Answer : (B) Reduce drying temperature