Removal of carbon particles from air involves the principle of - (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation

Removal of carbon particles from air involves the principle of - (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation
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(3) Electrophoresis Explanation: Electrophoresis is the process of separating certain large molecules so they can be examined more easily.
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Removal of carbon particles from air involves the principle of (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation

Description : Removal of carbon particles from air involves the principle of (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation

Last Answer : Electrophoresis

Rcmoval of carbon particles from air involves the principle of – (1) Precipitation (2) FiIteration (3) Electrophoresis (4) Sedimentation

Description : Rcmoval of carbon particles from air involves the principle of – (1) Precipitation (2) FiIteration (3) Electrophoresis (4) Sedimentation

Last Answer : (3) Electrophoresis Explanation: Carbon particles in air are colloidal in nature and carry negative charge. The removal of carbon parities from air involves the principle of electrophoresis. Carbon particles get ... losing their charge and, thus, the air which finally comes out is free from them.

Differentiate between filteration and sedimentation.

Description : Differentiate between filteration and sedimentation.

Last Answer : Differentiate between filtration and sedimentation Sedimentation Filtration Gravitational force is acting Pressure force is acting Sedimentation tanks or settling tanks are used. Filters are used  No filter medium is used Filter medium is used

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

The antibodies raised against a pure protein will show only one sharp spike on this technique: (A) Solubility curve (B) Solvent precipitation (C) Molecular weight determination (D) Immuno electrophoresis

Description : The antibodies raised against a pure protein will show only one sharp spike on this technique: (A) Solubility curve (B) Solvent precipitation (C) Molecular weight determination (D) Immuno electrophoresis

Last Answer : Answer : D

. Irreversible precipitation of proteins caused by heating is called : (a) Polymerisation (b) Denaturation (c) Electrophoresis (d) Inversion

Description : Irreversible precipitation of proteins caused by heating is called : (a) Polymerisation (b) Denaturation (c) Electrophoresis (d) Inversion

Last Answer : Denaturation

The movement of charged particles towards one of the electrodes under the influence of electrical current is (A) Gel filtration (B) Molecular sieving (C) Gas liquid chromatography (D) Electrophoresis

Description : The movement of charged particles towards one of the electrodes under the influence of electrical current is (A) Gel filtration (B) Molecular sieving (C) Gas liquid chromatography (D) Electrophoresis

Last Answer : Answer : D

The process of judicious removal of parts like leaf, flower, fruits etc. to obtain good and qualitative yield is called? a. Training b. Pruning c. Fustigation d. Sedimentation e. None of these

Description : The process of judicious removal of parts like leaf, flower, fruits etc. to obtain good and qualitative yield is called? a. Training b. Pruning c. Fustigation d. Sedimentation e. None of these

Last Answer : b. Pruning

Which is the most practical and economical method for removal of suspended solid matter from polluted water? (A) Sedimentation (B) Skimming off (C) Chlorination (D) Biological oxidation

Description : Which is the most practical and economical method for removal of suspended solid matter from polluted water? (A) Sedimentation (B) Skimming off (C) Chlorination (D) Biological oxidation

Last Answer : (A) Sedimentation

Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted waterstream?(A) Sedimentation tank(B) Circular clarifier(C) Mechanical flocculation(D) Chemical coagulation

Description : Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted waterstream? (A) Sedimentation tank (B) Circular clarifier (C) Mechanical flocculation (D) Chemical coagulation

Last Answer : (D) Chemical coagulation

A reduction reaction always involves the: w) loss of electrons x) gain of electrons y) addition of oxygen z) removal of oxygen

Description : A reduction reaction always involves the: w) loss of electrons x) gain of electrons y) addition of oxygen z) removal of oxygen

Last Answer : ANSWER: X -- GAIN OF ELECTRONS

Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation. (A) Clarification(B) Sedimentation(C) Flocculation(D) Classification

Description : Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation. (A) Clarification (B) Sedimentation (C) Flocculation (D) Classification

Last Answer : (D) Classification

Solid particles separation based on the difference in their flow velocities through fluids is termed as the (A) Clarification (B) Classification (C) Elutriation (D) Sedimentation

Description : Solid particles separation based on the difference in their flow velocities through fluids is termed as the (A) Clarification (B) Classification (C) Elutriation (D) Sedimentation

Last Answer : (B) Classification

Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called (A) Classification (B) Sedimentation (C) Clarification (D) Decantation

Description : Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called (A) Classification (B) Sedimentation (C) Clarification (D) Decantation

Last Answer : (B) Sedimentation

To remove very fine suspended particles from water, the method adopted is (A) Screening (B) Sedimentation (C) Boiling (D) Filtration

Description : To remove very fine suspended particles from water, the method adopted is  (A) Screening  (B) Sedimentation  (C) Boiling  (D) Filtration

Last Answer : To remove very fine suspended particles from water, the method adopted is  (A) Screening  (B) Sedimentation  (C) Boiling  (D) Filtration

Sedimentation analysis is based on the assumption: (A) Soil particles are spherical (B) Particles settle independent of other particles (C) Walls of the jar do not affect the settlement (D) All the above

Description : Sedimentation analysis is based on the assumption: (A) Soil particles are spherical (B) Particles settle independent of other particles (C) Walls of the jar do not affect the settlement (D) All the above

Last Answer : (D) All the above

Why oil filteration is required?

Description : Why oil filteration is required?

Last Answer : To remove water, sediments, sludge etc.  

When oil filteration is required?

Description : When oil filteration is required?  

Last Answer : On reweaving oil test results. Draining of oil for maintenance Topping up of transformer oil 

What is the value of vacuum maintained by vacuum pump in oil filteration machine?

Description : What is the value of vacuum maintained by vacuum pump in oil filteration machine?

Last Answer : 27 Hg.

Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copp

Description : Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copp

Last Answer : Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation ... : Copper is extracted by hydrometallurgy.

Removal of dirt/soil by soaps or detergent does not involve the __________ of soil. (A) Emulsification (B) Dispersion (C) Precipitation (D) Wetting

Description : Removal of dirt/soil by soaps or detergent does not involve the __________ of soil. (A) Emulsification (B) Dispersion (C) Precipitation (D) Wetting

Last Answer : (C) Precipitation

The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.

Description : The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.

Last Answer : c. Neutralization.

The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in (A) The principle of test (B) The method of taking observations (C) The method of preparation of soil suspension (D) All of the above

Description : The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in (A) The principle of test (B) The method of taking observations (C) The method of preparation of soil suspension (D) All of the above

Last Answer : (B) The method of taking observations

Pick out the true statement pertaining to water treatment. (A) Slow sand filters can remove colour completely (B) Activated carbon can be used for taste & odour control without subsequent filtration (C) Application of activated carbon reduces the temporary hardness of water (D) Normally, the turbidity is removed by adding a coagulant prior to sedimentation

Description : Pick out the true statement pertaining to water treatment. (A) Slow sand filters can remove colour completely (B) Activated carbon can be used for taste & odour control without subsequent filtration ... of water (D) Normally, the turbidity is removed by adding a coagulant prior to sedimentation

Last Answer : (D) Normally, the turbidity is removed by adding a coagulant prior to sedimentation

Dissolved carbon dioxide, can be removed from the supply main by (A) Sedimentation (B) Aeration (C) Chlorination (D) Coagulation

Description : Dissolved carbon dioxide, can be removed from the supply main by (A) Sedimentation (B) Aeration (C) Chlorination (D) Coagulation

Last Answer : (B) Aeration

If Organic sources of carcinogenic compounds in water persist even after chlorination, then what is the correct sequence among treatment processes listed below if all these are considered compulsory ? 1. Coagulation 2. Sedimentation 3. Filtration in general 4. Activated carbon bed filtration 5. Flocculation 6. Chlorination a) 4-5-3-2-6 and 1 b) 1-2-3-4-5 and 6 c) 4- 2- 3- 1- 5 and 6 d) 1-5-2-3-4 and 6

Description : If Organic sources of carcinogenic compounds in water persist even after chlorination, then what is the correct sequence among treatment processes listed below if all these are considered compulsory ? 1. Coagulation 2. Sedimentation 3. Filtration in ... c) 4- 2- 3- 1- 5 and 6 d) 1-5-2-3-4 and 6

Last Answer : d) 1-5-2-3-4 and 6

In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves -

Description : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves -

Last Answer : In Lungs there if definity exchange of ions between RBC and Plasma. Removal of `CO_(2)` from blood involves ... efflux of `HCO_(3)^(c-)` ions from RBC

What process involves the removal of rock partials by wind water ice or gravity?

Description : What process involves the removal of rock partials by wind water ice or gravity?

Last Answer : Need answer

Regulation of some enzymes by covalent modification involves addition or removal of (A) Acetate (B) Sulphate (C) Phosphate (D) Coenzyme

Description : Regulation of some enzymes by covalent modification involves addition or removal of (A) Acetate (B) Sulphate (C) Phosphate (D) Coenzyme

Last Answer : Answer : C

Removal of BSP dye by the liver involves conjugation with (A) Thiosulphate (B) Glutamine (C) Cystein component of glutathione (D) UDP glucuronate

Description : Removal of BSP dye by the liver involves conjugation with (A) Thiosulphate (B) Glutamine (C) Cystein component of glutathione (D) UDP glucuronate

Last Answer : Answer : C

From two amino acids peptide bond formation involves removal of one molecule of (A) Water (B) Ammonia (C) Carbondioxide (D) Carboxylic acid

Description : From two amino acids peptide bond formation involves removal of one molecule of (A) Water (B) Ammonia (C) Carbondioxide (D) Carboxylic acid

Last Answer : Answer : A

Digestion of proteins involves (a) changes in secondary structure only (b) cleavage of peptide linkages (c) removal of all carboxyl groups in the form of CO2. (d) removal of all NH2 groups in the form of NH3

Description : Digestion of proteins involves (a) changes in secondary structure only (b) cleavage of peptide linkages (c) removal of all carboxyl groups in the form of CO2. (d) removal of all NH2 groups in the form of NH3

Last Answer : cleavage of peptide linkages

There is a need to keep larger area under forests for – (1) absorption of carbon dioxide (2) protecting wildlife (3) raising precipitation (4) geological balance

Description : There is a need to keep larger area under forests for – (1) absorption of carbon dioxide (2) protecting wildlife (3) raising precipitation (4) geological balance

Last Answer : (1) absorption of carbon dioxide Explanation: Forests are considered as sinks of carbon dioxide. A carbon sink is anything that absorbs more carbon that it releases, whilst a carbon ... they are indispensable in the present global scenario marked by increasing global warming and climate change.

There is a need to keep larger area under forests for – (1) absorption of carbon dioxide (2) protecting wild-life (3) raising precipitation (4) ecological balance

Description : There is a need to keep larger area under forests for – (1) absorption of carbon dioxide (2) protecting wild-life (3) raising precipitation (4) ecological balance

Last Answer : (4) ecological balance Explanation: Ecological balance has been defined by various online dictionaries as "a state of dynamic equilibrium within a community of organisms in which genetic, species ... woodland. It restores eco-logical balance of all ecosystems and maintains bio-logical diversity.

There is a need to keep larger area under forests for : (1) absorption of carbon dioxide (2) protecting wildlife (3) raising precipitation (4) geological balance

Description : There is a need to keep larger area under forests for : (1) absorption of carbon dioxide (2) protecting wildlife (3) raising precipitation (4) geological balance

Last Answer :  absorption of carbon dioxide

What is The slowest type of mass movement which involves the lifting and contracting of soil particles over time is called?

Description : What is The slowest type of mass movement which involves the lifting and contracting of soil particles over time is called?

Last Answer : creep

Which of the following statement(s) is/are true concerning the cell function of phagocytosis? a. Phagocytosis is a mechanistically distinct process of endocytosis performed by special cells to take up larger particles such as bacteria or erythrocytes b. Lymphocytes are the primary blood cell involved with this process c. The process involves a coating of the cytoplasmic surface known as clathrin d. Phagocytosis is performed only by white blood cells and tissue macrophages

Description : Which of the following statement(s) is/are true concerning the cell function of phagocytosis? a. Phagocytosis is a mechanistically distinct process of endocytosis performed by special cells to take ... known as clathrin d. Phagocytosis is performed only by white blood cells and tissue macrophages

Last Answer : Answer: a Phagocytosis is a specialized form of endocytosis by which large particles are internalized by specialized cells primarily macrophages and neutrophils. To be phagocytosed, particles ... the lumen of the thyroid follicle, thereby releasing the thyroid hormones, thyroxine triiodothyronine

The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the (A) Venturi atomiser (B) Gravity settling chamber (C) Electro-static precipitator (D) Cyclone separator

Description : The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the (A) Venturi atomiser (B) Gravity settling chamber (C) Electro-static precipitator (D) Cyclone separator

Last Answer : (C) Electro-static precipitator

Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas? (A) Packed scrubber (B) Gravity settling chamber (C) Electrostatic precipitator (D) Hydrocyclone

Description : Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas? (A) Packed scrubber (B) Gravity settling chamber (C) Electrostatic precipitator (D) Hydrocyclone

Last Answer : (C) Electrostatic precipitator

Pick out the wrong statement. (A) A slight haze at the top of chimney indicates good combustion in the furnace (B) A bag filter incurs very small pressure drop and is very efficient for removal of submicronic dust particles from flue gases at very high temperature (C) Electrostatic precipitator is the most efficient dust collection equipment for removal of submicronic dust particles present in flue gas (D) None of these

Description : Pick out the wrong statement. (A) A slight haze at the top of chimney indicates good combustion in the furnace (B) A bag filter incurs very small pressure drop and is very efficient for ... dust collection equipment for removal of submicronic dust particles present in flue gas (D) None of these

Last Answer : (B) A bag filter incurs very small pressure drop and is very efficient for removal of submicronic dust particles from flue gases at very high temperature

Which of the following is an adsorbent for removal of nitrogen oxides from gas/air? (A) Active carbon (B) Silica gel (C) Bog iron (iron oxide) (D) Pulverised limestone

Description : Which of the following is an adsorbent for removal of nitrogen oxides from gas/air? (A) Active carbon (B) Silica gel (C) Bog iron (iron oxide) (D) Pulverised limestone

Last Answer : (B) Silica gel

Which of the following is an adsorbent used for the removal of SO2 from gas/air? (A) Bog iron (B) Limestone powder or alkalised alumina (C) Silica gel (D) Active carbon

Description : Which of the following is an adsorbent used for the removal of SO2 from gas/air? (A) Bog iron (B) Limestone powder or alkalised alumina (C) Silica gel (D) Active carbon

Last Answer : (B) Limestone powder or alkalised alumina

Which one of the following is not a matter a global concern in the removal of tropical forests ? (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer. (B) Their role in maintaining the oxygen and carbon balance of the earth. (C) Their ability to regulate surface and air temperatures, moisture content and reflectivity. (D) Their contribution to the biological diversity of the planet.

Description : Which one of the following is not a matter a global concern in the removal of tropical forests ? (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer ... , moisture content and reflectivity. (D) Their contribution to the biological diversity of the planet.

Last Answer : (A) Their ability to absorb the chemicals that contribute to depletion of ozone layer.

Which of the following represents the accepted method of cleaning dust and foreign particles from electrical equipment while limiting damage to electric components? A. Carefully wiping off the components with a soft cotton rag. B. Blowing a high velocity stream of compressed air rapidly across the components. C. Using a vacuum cleaner to remove debris from the components. D. Using carbon tetrachloride as a cleaning solvent to clean the components.

Description : Which of the following represents the accepted method of cleaning dust and foreign particles from electrical equipment while limiting damage to electric components? A. Carefully wiping off the components ... the components. D. Using carbon tetrachloride as a cleaning solvent to clean the components.

Last Answer : Answer: C

How is precipitation related to high- pressure and low- pressure air?

Description : How is precipitation related to high- pressure and low- pressure air?

Last Answer : What is the answer ?

Cherapunji receives more rainfall than Shillong because: (a) the former is nearer to the sea (b) the air of different densities and temperature tends to converge towards Cherapunjl from different direction during the rainy season (c) Cherapunji is located on the windward side (d) convective precipitation brings more rain at Cherapunji

Description : Cherapunji receives more rainfall than Shillong because: (a) the former is nearer to the sea (b) the air of different densities and temperature tends to converge towards Cherapunjl from ... Cherapunji is located on the windward side (d) convective precipitation brings more rain at Cherapunji

Last Answer : Ans: (b)

Precipitation caused due to upward movement of warmer air as compared to surrounding air, is called (A) Cyclonic precipitation (B) Convective precipitation (C) Orographic precipitation (D) None of these

Description : Precipitation caused due to upward movement of warmer air as compared to surrounding air, is called (A) Cyclonic precipitation (B) Convective precipitation (C) Orographic precipitation (D) None of these

Last Answer : Answer: Option B

Pick up the correct statement from the following: (A) Central portion of a cyclone acts as a chimney through which air gets lifted (B) Cyclonic precipitation caused by a warm front is generally continuous (C) Greatest amount of orographic precipitation falls in the windward side of the barrier (D) All the above

Description : Pick up the correct statement from the following: (A) Central portion of a cyclone acts as a chimney through which air gets lifted (B) Cyclonic precipitation caused by a warm front is ... Greatest amount of orographic precipitation falls in the windward side of the barrier (D) All the above

Last Answer : Option D

Precipitation caused by lifting of an air mass due to the pressure difference, is called (A) Cyclonic precipitation (B) Convective precipitation (C) Orographic precipitation (D) None of these

Description : Precipitation caused by lifting of an air mass due to the pressure difference, is called (A) Cyclonic precipitation (B) Convective precipitation (C) Orographic precipitation (D) None of these

Last Answer : Answer: Option A

Precipitation caused due to striking of air masses with a topographical feature, is called (A) Orographic precipitation (B) Convective precipitation (C) Cyclonic precipitation (D) None of these

Description : Precipitation caused due to striking of air masses with a topographical feature, is called (A) Orographic precipitation (B) Convective precipitation (C) Cyclonic precipitation (D) None of these

Last Answer : Option A