Description : Diatomaceous earth is a/an (A) Explosive (B) Filter aid (C) Filter medium (D) Catalyst
Last Answer : (B) Filter aid
Description : The most common filter aid is (A) Diatomaceous earth (B) Calcium silicate (C) Sodium carbonate (D) Silica gel
Last Answer : (A) Diatomaceous earth
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'
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
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
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)
Description : Air filtration typically uses a filter. a. HEPA b. Membrane c. Sand d. Diatomaceous Earth
Last Answer : a. HEPA
Description : Which one of the following clay mineral has the highest CEC? (A) Vermiculite (B) Montmorillonite (C) Kaolinite (D) Illite
Last Answer : (A) Vermiculite
Description : The clay soil mainly consists of (A) Kaolinite (B) Montmorillonite (C) Vermiculite (D) All the above
Last Answer : (D) All the above
Description : Pick up the clay soil group which does not swell when wet from the following: (A) Kaolinite group (B) Mite group (C) Vermiculite group (D) Montrorillonite group
Last Answer : (B) Mite group
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
Description : Which of the following adsorbent is used to decolourise yellow glycerine? (A) Silica gel (B) Alumina (C) Fuller's earth (D) Activated carbon
Last Answer : (D) Activated carbon
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)
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
Description : Yellow glycerine is made into white, using (A) Activated carbon (B) Diatomaceous earth (C) Bauxite (D) Bentonite
Last Answer : (A) Activated carbon
Description : An example of an organic material is __________. a. Pea gravel b. Perlite c. Leaf mold d. Vermiculite
Last Answer : Leaf mold
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
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.
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.
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.
Description : Can be inferred based on the excerpt from Fullers The Great Lawsuit?
Last Answer : What is the answer ?
Description : Which of the following is the most widely used insulating material for steam carrying pipelines? (A) Ceramic fibre blanket (B) Glass wool and 85% magnesia (C) Vermiculite (D) Slag wool
Last Answer : (B) Glass wool and 85% magnesia
Description : Concrete is unsuitable for compaction by a vibrator if it is (A) Dry (B) Earth moist (C) Semi-plastic (D) Plastic
Last Answer : Answer: Option D
Description : A concrete having a slump of 6.5 cm, is said to be (A) Dry (B) Earth moist (C) Semi-plastic (D) Plastic
Description : Concrete is unsuitable for compaction by vibration if it is [ A ] Semi – plastic [ B ] Plastic [ C ] Earth moist [ D ] Dry
Last Answer : [ B ] Plastic
Description : can I use vermiculite instead of wood chips when repotting my orchid plant?
Last Answer : orchids rely on a medium which is mostly rocks, pebbles, peat moss, and some vermiculite type aerators. I've personally not heard of using just vemiculite but one hint I learned from an elderly japanese ... houseplants. Can't remember the last time I threw out an egg shell. Good luck and Aloha!
Description : non expanding type mineral is — a. Vermiculite b. Illite c. Kaolinite d. Montmorillonite
Last Answer : c. Kaolinite
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
Description : Name the extremely fine-grained, wind-blown clay particularly characteristic of the arid and semi-arid southwestern United States, Mexico and South America. This material was used by the southwestern Indians and Mexicans for constructing huts and buildings from prehistoric times.
Last Answer : ANSWER: ADOBE
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
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
Description : Lithophane is (A) Explosive (B) White lead (C) Filter aid (D) ZnS (white pigment)
Last Answer : (D) ZnS (white pigment)
Description : The haemodialyzer has semi-permeable lining of tubes which help to: (a) To maintain osmotic pressure of blood. (b) To filter nitrogenous wastes from the dialyzing solution. (c) In passing the waste product, in the dialyzing solution. (d) To pump purified blood back into the body of the patient.
Last Answer : (c) In passing the waste product, in the dialyzing solution.
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.
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.
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.
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
Description : Which of the following substance is highly plastic? (1) Quartz (2) Mica (3) Granite (4) Clay
Last Answer : (4) Clay Explanation: Clays exhibit plasticity when mixed with water in certain proportions. When dry, clay becomes firm and when fired in a kiln, permanent physical and chemical changes ... with different minerals and firing conditions, are used to produce earthenware, stoneware, and porcelain.
Description : Which of the following is most elastic? (1) Rubber (2) Wet clay (3) Steel (4) Plastic
Last Answer : (3) Steel Explanation: In physics, elasticity is a physical property of materials which return to their original shape after the stress that caused their deformation is no longer applied. ... are characterized by a linear relationship between stress and strain (the relative amount of deformation).
Description : The liquid limit and plastic limit exist in (A) Sandy soils (B) Silty soils (C) Gravel soils (D) Clay soils
Last Answer : (D) Clay soils
Description : The shear strength in plastic undrained clay, is due to (A) Inter-granular friction (B) Internal friction (C) Cohesion (D) None of these
Last Answer : (C) Cohesion
Description : Which of the following substance is highly plastic ? (1) Quartz (2) Mica (3) Granite (4) Clay
Last Answer : Clay
Last Answer : Steel
Description : In the Semi-arid and Temperate grasslands, which are the most commonly found animals? -Do You Know?
Last Answer : answer:
Description : What items are most commonly found in a first aid kit?
Last Answer : It is a good idea to keep gauze, bandages and a sterilizing agent, such as alcohol in your first aid kit. You may also want to keep an ice pack and a bee sting kit in there.
Description : A decrease in water content results in a reduction of the volume of a soil in (A) Liquid state (B) Plastic state (C) Semi solid state (D) All of these
Last Answer : (D) All of these
Description : The water content in a soil sample when it continues to loose weight without loosing the volume, is called (A) Shrinkage limit (B) Plastic limit (C) Liquid limit (D) Semi-solid limit
Last Answer : Answer: Option A
Description : Plasticity index is defined as the range of water content between (A) Liquid and plastic limit (B) Plastic limit and semi solid limit (C) Semi-solid limit and liquid limit (D) Liquid limit and solid limit
Description : Plasticity index represents the range of water content between a) Liquid and plastic limit * b) Plastic limit and semi solid limit c) Semisolid Limit and liquid limit d) Liquid limit and solid limit.
Last Answer : a) Liquid and plastic limit *
Description : The most commonly used resin for making reinforced plastic is (A) Unsaturated polyester (B) Polypropylene
Last Answer : (A) Unsaturated polyester