Diatomaceous earth is a/an (A) Explosive (B) Filter aid (C) Filter medium (D) Catalyst

Diatomaceous earth is a/an
(A) Explosive
(B) Filter aid
(C) Filter medium
(D) Catalyst
by

1 Answer

Answer :

(B) Filter aid
by

Related questions

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'

Description : 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 ... the cake by dissolving solids or by burning it off (D) All 'a', 'b' & 'c'

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

The most common filter aid is (A) Diatomaceous earth (B) Calcium silicate (C) Sodium carbonate (D) Silica gel

Description : The most common filter aid is (A) Diatomaceous earth (B) Calcium silicate (C) Sodium carbonate (D) Silica gel

Last Answer : (A) Diatomaceous earth

__________ is the most commonly used 'filter aid'. (A) Diatomaceous earth (B) Fuller's earth (C) Vermiculite (D) Semi-plastic clay

Description : __________ is the most commonly used 'filter aid'. (A) Diatomaceous earth (B) Fuller's earth (C) Vermiculite (D) Semi-plastic clay

Last Answer : (A) Diatomaceous earth

Which one is a filter aid? (A) Canvas fabric (B) Diatomaceous earth (C) Calcined lime (D) None of these

Description : Which one is a filter aid? (A) Canvas fabric (B) Diatomaceous earth (C) Calcined lime (D) None of these

Last Answer : (B) Diatomaceous earth

Which of the following is not used as filter aid? (A) Asbestos (B) Diatomaceous earth (C) Purified wood cellulose (D) Rice husk

Description : Which of the following is not used as filter aid? (A) Asbestos (B) Diatomaceous earth (C) Purified wood cellulose (D) Rice husk

Last Answer : (D) Rice husk

Lithophane is (A) Explosive (B) White lead (C) Filter aid (D) ZnS (white pigment)

Description : Lithophane is (A) Explosive (B) White lead (C) Filter aid (D) ZnS (white pigment)

Last Answer : (D) ZnS (white pigment)

Air filtration typically uses a filter. a. HEPA b. Membrane c. Sand d. Diatomaceous Earth

Description : Air filtration typically uses a filter. a. HEPA b. Membrane c. Sand d. Diatomaceous Earth

Last Answer : a. HEPA

. 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

Description : . 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

Last Answer : (C) Deplugging the filter medium

Which adsorbent is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant? (A) Silica gel (B) Diatomaceous earth (C) Basalt (D) Bog iron (i.e., moist ferric hydroxide)

Description : Which adsorbent is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant? (A) Silica gel (B) Diatomaceous earth (C) Basalt (D) Bog iron (i.e., moist ferric hydroxide)

Last Answer : (D) Bog iron (i.e., moist ferric hydroxide)

Wet chlorine gas produced during electrolysis of brine is dehydrated by (A) Spraying 66° Be H2SO4 counter current to the flow of the gas (B) Passing it through a bed of diatomaceous earth (C) Passing it through a bed of silica gel (D) None of these

Description : Wet chlorine gas produced during electrolysis of brine is dehydrated by (A) Spraying 66° Be H2SO4 counter current to the flow of the gas (B) Passing it through a bed of diatomaceous earth (C) Passing it through a bed of silica gel (D) None of these

Last Answer : (A) Spraying 66° Be H2SO4 counter current to the flow of the gas

Yellow glycerine is made into white, using (A) Activated carbon (B) Diatomaceous earth (C) Bauxite (D) Bentonite

Description : Yellow glycerine is made into white, using (A) Activated carbon (B) Diatomaceous earth (C) Bauxite (D) Bentonite

Last Answer : (A) Activated carbon

A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre. (A) 0.01 (B) 0.1 (C) 0.25 (D) 0.5

Description : A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of ... and thickness __________ metre. (A) 0.01 (B) 0.1 (C) 0.25 (D) 0.5

Last Answer : (B) 0.1

Anyone take food grade Diatomaceous Earth internally?

Description : Anyone take food grade Diatomaceous Earth internally?

Last Answer : I do not. I don’t feel my innards need to be exfoliated with crystalline silica.

Have you heard of Food Grade Diatomaceous Earth?

Description : Have you heard of Food Grade Diatomaceous Earth?

Last Answer : answer:Diatoms are tiny fossils that are basically crystalline silica. Inhaling that stuff can give you cancer. It's harder than the enamel in your teeth. It has absolutely zero nutritional value. The best ... out. It would benefit you much more to just have some whole-grain oats in the morning.

Select the wrong statement. (a) The walls of diatoms are easily destructible. (b) ‘Diatomaceous earth’ is formed by the cell walls of diatoms. (c) Diatoms are chief producers in the oceans. (d) Diatoms are microscopic and float passively in water.

Description : Select the wrong statement. (a) The walls of diatoms are easily destructible. (b) ‘Diatomaceous earth’ is formed by the cell walls of diatoms. (c) Diatoms are chief producers in the oceans. (d) Diatoms are microscopic and float passively in water.

Last Answer : (a) The walls of diatoms are easily destructible.

Filter aid is used to (A) Increase the rate of filtration (B) Decrease the pressure drop (C) Increase the porosity of the cake (D) Act as a support base for the septum

Description : Filter aid is used to (A) Increase the rate of filtration (B) Decrease the pressure drop (C) Increase the porosity of the cake (D) Act as a support base for the septum

Last Answer : (C) Increase the porosity of the cake

Addition of filter aid to the slurry before filtration is done to __________ of the cake. (A) Increase the porosity (B) Increase the compressibility co-efficient (C) Decrease the porosity (D) Decrease the compressibility co-efficient

Description : Addition of filter aid to the slurry before filtration is done to __________ of the cake. (A) Increase the porosity (B) Increase the compressibility co-efficient (C) Decrease the porosity (D) Decrease the compressibility co-efficient

Last Answer : (A) Increase the porosity

List qualities of an ideal filter aid and state any two example of it.

Description : List qualities of an ideal filter aid and state any two example of it.

Last Answer : Ideal qualities of filter aid:  i. It should be remain suspended in the liquid. ii. It should be free from impurities. iii. It should be inert. iv. It should have a particle size distribution suitable ... i. Asbestos. ii. Cellulose. iii. Carbon. iv. Diatomaceous earth (silica). v. Perlite.

What are filter aid. What should be qualities of filter aid?

Description : What are filter aid. What should be qualities of filter aid?

Last Answer : Filter Aid: These are the substance which reduces the resistance of filtrate to flow. Ideal qualities of filter aid:  i. It should be remain suspended in the liquid. ii. It should be free ... suitable for retention of solid. v. It should have structure that permits formation of porous cake. 

Write short note i. Filter aid. ii. Ayurvedic dosage form.

Description : Write short note  i. Filter aid. ii. Ayurvedic dosage form.

Last Answer : Filter aid Definition:   These are the substance which reduces the resistance of filtrate to flow. Objective: prevent the blocking of filter medium by forming open porous cake. It is used mainly ... milk and 32 parts of water till the milk alone remains. The decoction is then strained.

Write the qualities of an ideal filter aids. Give examples of filter aid.

Description : Write the qualities of an ideal filter aids. Give examples of filter aid.

Last Answer : Ideal qualities of filter aid: i. It should be remain suspended in the liquid. ii. It should be free from impurities. iii. It should be inert. iv. It should have a particle size distribution ... ii. Cellulose. iii. Carbon. iv. Diatomaceous earth (silica). v.Perlite. vi.Activated Charcoal

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

Description : 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

Last Answer : (D) Cotton fabric

Filter medium resistance is important during the __________ of filtration. (A) Early stages (B) Final stages (C) Entire process (D) None of these

Description : Filter medium resistance is important during the __________ of filtration. (A) Early stages (B) Final stages (C) Entire process (D) None of these

Last Answer : (A) Early stages

A compressible cake has the (A) Maximum porosity at the upstream side (B) Maximum porosity at the filter medium (C) Same porosity throughout the cake thickness (D) None of these

Description : A compressible cake has the (A) Maximum porosity at the upstream side (B) Maximum porosity at the filter medium (C) Same porosity throughout the cake thickness (D) None of these

Last Answer : (A) Maximum porosity at the upstream side

Filter medium resistance is that offered by the(A) Filter cloth(B) Embedded particles in the septum(C) Filter cloth and the embedded particle collectively(D) None of these

Description : Filter medium resistance is that offered by the (A) Filter cloth (B) Embedded particles in the septum (C) Filter cloth and the embedded particle collectively (D) None of these

Last Answer : (C) Filter cloth and the embedded particle collectively

The porosity of a compressible cake is(A) Minimum at the filter medium(B) Minimum at the upstream face(C) Maximum at the filter medium(D) Same throughout the thickness of cake

Description : The porosity of a compressible cake is (A) Minimum at the filter medium (B) Minimum at the upstream face (C) Maximum at the filter medium (D) Same throughout the thickness of cake

Last Answer : (A) Minimum at the filter medium

The unit of filter medium resistance is(A) cm-1(B) gm/cm-1(C) cm/gm-1(D) gm-1

Description : The unit of filter medium resistance is (A) cm-1 (B) gm/cm-1 (C) cm/gm-1 (D) gm-1

Last Answer : (A) cm-1

During the washing of cake (A) All the resistances are constant (B) Filter medium resistance increases (C) Filter medium resistance decreases (D) Cake resistance decreases

Description : During the washing of cake (A) All the resistances are constant (B) Filter medium resistance increases (C) Filter medium resistance decreases (D) Cake resistance decreases

Last Answer : (A) All the resistances are constant

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

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

During filtration operation, the filtrate encounters the resistance of the (A) Filter medium (B) Cake (C) Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium (D) All (A), (B) and (C)

Description : During filtration operation, the filtrate encounters the resistance of the (A) Filter medium (B) Cake (C) Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (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/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

Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst. (A) Bauxite (B) Fuller’s earth (C) Activated clay(D) All (A), (B) & (C)

Description : Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst. (A) Bauxite (B) Fuller’s earth (C) Activated clay (D) All (A), (B) & (C)

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

The unit of filter medium resistance is________

Description : The unit of filter medium resistance is________

Last Answer : L^-1

Enlist the different filter medium used for filtration.

Description : Enlist the different filter medium used for filtration.

Last Answer : i) Filter paper. ii) Cotton wool. iii) Glass wool. iv) Asbestos. v) Fine muslin. vii)FilterMembranefilter. viii)Sintered glass filter. 

Pick out the wrong statement. (A) For the compressible cake, voidage & the specific resistance of the cake can be assumed to be constant (B) Cake resistance is independent of the pressure drop (C) Crushing of explosive materials are done by employing dry-grinding (D) Gyratory crusher is a coarse crusher

Description : Pick out the wrong statement. (A) For the compressible cake, voidage & the specific resistance of the cake can be assumed to be constant (B) Cake resistance is independent of the pressure ... Crushing of explosive materials are done by employing dry-grinding (D) Gyratory crusher is a coarse crusher

Last Answer : (B) Cake resistance is independent of the pressure drop

Which of the following is used for making the explosive ‘TNT’? (A) Benzol (B) Toluene (C) Pyridine (D) Cerosote

Description : Which of the following is used for making the explosive ‘TNT’? (A) Benzol (B) Toluene (C) Pyridine (D) Cerosote

Last Answer : (B) Toluene

Coke oven gas compared to blast furnace gas is (A) More explosive and inflammable (B) Less poisonous (C) Lighter (D) All (A), (B) and (C)

Description : Coke oven gas compared to blast furnace gas is (A) More explosive and inflammable (B) Less poisonous (C) Lighter (D) All (A), (B) and (C)

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

Benzene is used (A) As a motor fuel (B) As an explosive (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) As a perfume

Description : Benzene is used (A) As a motor fuel (B) As an explosive (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) As a perfume

Last Answer : (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) A

Biuret formation in urea is kept at minimum (< 1 %), because it is (A) Corrosive in nature (B) Toxic and harmful to some crops (C) Helpful in decomposition of urea (D) Explosive in nature

Description : Biuret formation in urea is kept at minimum (< 1 %), because it is (A) Corrosive in nature (B) Toxic and harmful to some crops (C) Helpful in decomposition of urea (D) Explosive in nature

Last Answer : (B) Toxic and harmful to some crops

Nitro-phosphate (manufactured at Trombay-India) is a __________ fertiliser. (A) Mixed (B) Complex (C) Highly hygroscopic (D) Highly explosive

Description : Nitro-phosphate (manufactured at Trombay-India) is a __________ fertiliser. (A) Mixed (B) Complex (C) Highly hygroscopic (D) Highly explosive

Last Answer : (B) Complex

Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because (A) It is hygroscopic and explosive in nature (B) It is highly acidic in nature (C) It is a liquid at room temperature (D) Its nitrogen content is very less

Description : Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because (A) It is hygroscopic and explosive in nature (B) It is highly acidic in nature (C) It is a liquid at room temperature (D) Its nitrogen content is very less

Last Answer : (A) It is hygroscopic and explosive in nature

Calcium ammonium nitrate (CAN) is (A) A mixed fertiliser(B) A straight fertiliser (C) A complex fertiliser (D) Not a fertiliser; it is an explosive

Description : Calcium ammonium nitrate (CAN) is (A) A mixed fertiliser (B) A straight fertiliser (C) A complex fertiliser (D) Not a fertiliser; it is an explosive

Last Answer : (C) A complex fertiliser

mmonium nitrate is (A) Having about 40% N2 (B) Not hygroscopic (C) Not prone to explosive thermal decomposition (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

Description : mmonium nitrate is (A) Having about 40% N2 (B) Not hygroscopic (C) Not prone to explosive thermal decomposition (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

Last Answer : (D) Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer

The widest explosive limit is of __________, thereby making it the most explosive gas. (A) Acetylene (B) Petrol vapor (C) Hydrogen (D) Carbon monoxide

Description : The widest explosive limit is of __________, thereby making it the most explosive gas. (A) Acetylene (B) Petrol vapor (C) Hydrogen (D) Carbon monoxide

Last Answer : (A) Acetylene

Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? (A) Hydrogen (B) Acetylene (C) Carbon monoxide (D) Ammonia

Description : Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? (A) Hydrogen (B) Acetylene (C) Carbon monoxide (D) Ammonia

Last Answer : (B) Acetylene

Trinitro-toluene (TNT) is (A) Used in glycerine manufacture (B) An explosive (C) Used in dye manufacture (D) None of these

Description : Trinitro-toluene (TNT) is (A) Used in glycerine manufacture (B) An explosive (C) Used in dye manufacture (D) None of these

Last Answer : (B) An explosive

Margarine is a/an (A) Fat (B) Explosive (C) Plasticiser (D) Rocket propellant

Description : Margarine is a/an (A) Fat (B) Explosive (C) Plasticiser (D) Rocket propellant

Last Answer : (A) Fat

Trinitrotoluene (TNT), an explosive, is made by the nitration of (A) Nitrobenzene (B) Toluene (C) Nitrotoluene (D) Benzene

Description : Trinitrotoluene (TNT), an explosive, is made by the nitration of (A) Nitrobenzene (B) Toluene (C) Nitrotoluene (D) Benzene

Last Answer : (B) Toluene