Which of the following parameters is not used as a pollution indicator in water? (A) Total dissolved solids (B) Coliform count (C) Dissolved oxygen (D) Density

Which of the following parameters is not used as a pollution indicator in water? (A) Total dissolved solids (B) Coliform count (C) Dissolved oxygen (D) Density
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Answer: D
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The concentration of Total Dissolved Solids (TDS) in drinking water should not exceed (A) 500 mg/L (B) 400 mg/L (C) 300 mg/L (D) 200 mg/L

Description : The concentration of Total Dissolved Solids (TDS) in drinking water should not exceed (A) 500 mg/L (B) 400 mg/L (C) 300 mg/L (D) 200 mg/L

Last Answer : (A) 500 mg/L

The domestic sewage in large cities (a) has a high BOD as it contains both aerobic and anaerobic bacteria (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs) (c) when treated in STPs does not really require the aeration step as the sewage contains adequate oxygen (d) has very high amount of suspended solids and dissolved salts.

Description : The domestic sewage in large cities (a) has a high BOD as it contains both aerobic and anaerobic bacteria (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in ... sewage contains adequate oxygen (d) has very high amount of suspended solids and dissolved salts.

Last Answer : (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)

An approximate estimation of total dissolved solids of a given water sample is often made by measuring (a) Electrical conductivity of the water sample (b) Electro-magnetic conductivity of the water sample (c) Sound conductivity of the water sample (d) Thermal conductivity of the water sample

Description : An approximate estimation of total dissolved solids of a given water sample is often made by measuring (a) Electrical conductivity of the water sample (b) Electro-magnetic conductivity of the water sample (c) Sound conductivity of the water sample (d) Thermal conductivity of the water sample

Last Answer : (a) Electrical conductivity of the water sample

With regard to standard of quality of drinking water as laid down by Indian Railway , the requirement (desirable) limit of total dissolved solids should not be more than---------- mg/l a)200 b) 300 c) 400 d) 500*

Description : With regard to standard of quality of drinking water as laid down by Indian Railway , the requirement (desirable) limit of total dissolved solids should not be more than---------- mg/l a)200 b) 300 c) 400

Last Answer : d) 500*

is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS). c) Plant Energy Performance (PEP) b) Revolutions Per Minute (RPM) d) Option (a) and (b)

Description : is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS). c) Plant Energy Performance (PEP) b) Revolutions Per Minute (RPM) d) Option (a) and (b)

Last Answer : Plant Energy Performance (PEP)

is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS) b) Plant Energy Performance (PEP) c) Revolutions Per Minute (RPM) d) Option (a) and (b)

Description : is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS) b) Plant Energy Performance (PEP) c) Revolutions Per Minute (RPM) d) Option (a) and (b)

Last Answer : Plant Energy Performance (PEP)

The experimental study is based on: (A) The manipulation of variables (B) Conceptual parameters (C) Replication of research (D) Survey of literature

Description : The experimental study is based on: (A) The manipulation of variables (B) Conceptual parameters (C) Replication of research (D) Survey of literature

Last Answer : (A) The manipulation of variables

The Lok - Sabha can be dissolved before the expiry of its normal five year term by: (A) The Prime Minister (B) The Speaker of Lok Sabha (C) The President on the recommendation of the Prime Minister (D) None of the above

Description : The Lok - Sabha can be dissolved before the expiry of its normal five year term by: (A) The Prime Minister (B) The Speaker of Lok Sabha (C) The President on the recommendation of the Prime Minister (D) None of the above

Last Answer : Answer: C

Polluted water usually contains coliform bacteria like _____. a. Streptococcus b. Proteus c. Escherichia coli d. Pseudomonas

Description : Polluted water usually contains coliform bacteria like _____. a. Streptococcus b. Proteus c. Escherichia coli d. Pseudomonas

Last Answer : c. Escherichia coli

Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low (A) Hardness (B) Dissolved solids content (C) Suspended solids content (D) All (A), (B) and (C)

Description : Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low (A) Hardness (B) Dissolved solids content (C) Suspended solids content (D) All (A), (B) and (C)

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

Turbidity of water is an indication of the presence of (A) Suspended inorganic matter (B) Dissolved solids (C) Floating solids (D) Dissolved gases

Description : Turbidity of water is an indication of the presence of (A) Suspended inorganic matter (B) Dissolved solids (C) Floating solids (D) Dissolved gases

Last Answer : (A) Suspended inorganic matter

Removal of __________ is accomplished by aeration of water. (A) Dissolved gases (B) Suspended solids (C) Dissolved solids (D) None of these

Description : Removal of __________ is accomplished by aeration of water. (A) Dissolved gases (B) Suspended solids (C) Dissolved solids (D) None of these

Last Answer : (A) Dissolved gases

The ratio of dissolved solids in circulating water to the dissolved solids in makeup water is called a) Liquid gas ratio b) Cycle of concentration c) Cooling tower effectiveness d) None of the above

Description : The ratio of dissolved solids in circulating water to the dissolved solids in makeup water is called a) Liquid gas ratio b) Cycle of concentration c) Cooling tower effectiveness d) None of the above

Last Answer : Cycle of concentration

The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called. • Liquid gas ratio • Cycle of concentration • Cooling tower effectiveness • None of the above

Description : The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called. • Liquid gas ratio • Cycle of concentration • Cooling tower effectiveness • None of the above

Last Answer : Cycle of concentration

What health risks associated with the presence of coliform bacteria?

Description : What health risks associated with the presence of coliform bacteria?

Last Answer : The health issues that are associated with the presence of coliform bacteria are basically flu symptoms. For example, the health issues that coliform can cause are nausea, vomiting, and diarrhea. ... the health issues that are associated with the presence of coliform bacteria is like flu symptoms.

Selective media facilitate growth of only one kind of organism.Saboraud medium is used to selectively isolate A- coliform bacteria B- gram positive bacteria C- .yeasts D- acid fast organisms

Description : Selective media facilitate growth of only one kind of organism.Saboraud medium is used to selectively isolate A- coliform bacteria B- gram positive bacteria C- .yeasts D- acid fast organisms

Last Answer : .yeasts

If MOHAN is represented by the code KMFYL, then COUNT will be represented by (A) AMSLR (B) MSLAR (C) MASRL (D) SAMLR

Description : If MOHAN is represented by the code KMFYL, then COUNT will be represented by (A) AMSLR (B) MSLAR (C) MASRL (D) SAMLR

Last Answer : Answer: A

In domestic sewage, suspended solids, colloidal and dissolved materials constitute

Description : In domestic sewage, suspended solids, colloidal and dissolved materials constitute

Last Answer : In domestic sewage, suspended solids, colloidal and dissolved materials constitute A. 0.1 B. 0.056 C. 0.027 D. 0.001

What is a solution A. a solid dissolved in a gas B. a solute and a solvent C. a liquid dissolved in a gas D. an amalgam of solids, liquids, and gases?

Description : What is a solution A. a solid dissolved in a gas B. a solute and a solvent C. a liquid dissolved in a gas D. an amalgam of solids, liquids, and gases?

Last Answer : B. A solute and a solvent

Imhoff cone is used to determine A. Settleable solids B. Suspended solids C. Dissolved solids D. None of these

Description : Imhoff cone is used to determine A. Settleable solids B. Suspended solids C. Dissolved solids D. None of these

Last Answer : ANS: A

The effluent of a septic tank is A. Fit for discharge into any open drain B. Foul and contains dissolved and suspended solids C. As good as that from a complete treatment D. None of these

Description : The effluent of a septic tank is A. Fit for discharge into any open drain B. Foul and contains dissolved and suspended solids C. As good as that from a complete treatment D. None of these

Last Answer : ANS: A

The arsenic pollution in ground water in Bangladesh and parts of India is due to (A) industrial waste (B) thermal power plants (C) natural sources (D) agricultural practices

Description : The arsenic pollution in ground water in Bangladesh and parts of India is due to (A) industrial waste (B) thermal power plants (C) natural sources (D) agricultural practices

Last Answer : (C) natural sources

Which of the following is the largest source of water pollution in major rivers of India? (A) Untreated sewage (B) Agriculture run-off (C) Unregulated small scale industries (D) Religious practices

Description : Which of the following is the largest source of water pollution in major rivers of India? (A) Untreated sewage (B) Agriculture run-off (C) Unregulated small scale industries (D) Religious practices

Last Answer : (A) Untreated sewage

The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Description : The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Last Answer : (C) sewage effluents

Pick up the correct statement from the following: (A) The void ratio in soils is defined as the ratio of the volume of voids to the volume of solids (B) The bulk density of a soil is defined as the unit weight of the soil (C) The dry density of a soil is defined as weight of solids to the total volume of the soil (D) All the above

Description : Pick up the correct statement from the following: (A) The void ratio in soils is defined as the ratio of the volume of voids to the volume of solids (B) The bulk density of a soil is defined as the ... of a soil is defined as weight of solids to the total volume of the soil (D) All the above

Last Answer : Answer: Option D

The dry density of soil is a) Always greater than the saturated density b) Weight of soil solids per unit of total volume prior to drying* c) Total weight of soil solids per unit of its total volume d) Total weight of soil mass per unit of its total volume

Description : The dry density of soil is a) Always greater than the saturated density b) Weight of soil solids per unit of total volume prior to drying* c) Total weight of soil solids per unit of its total volume d) Total weight of soil mass per unit of its total volume

Last Answer : b) Weight of soil solids per unit of total volume prior to drying*

The dominant source of pollution due to oxides of nitrogen (NOx) in urban areas is (A) Road trAns:port (B) Commercial Sector (C) Energy use in industry (D) Power plants

Description : The dominant source of pollution due to oxides of nitrogen (NOx) in urban areas is (A) Road trAns:port (B) Commercial Sector (C) Energy use in industry (D) Power plants

Last Answer : (B) Commercial Sector

Inside rural homes, the source/sources of Nitrogen Oxide Pollution may be: (a) Unvented gas stoves (b) Wood stoves (c) Kerosene heaters Choose the correct code: (A) (a) and (b) only (B) (b) and (c) only (C) (b) only (D) (a), (b) and (c)

Description : Inside rural homes, the source/sources of Nitrogen Oxide Pollution may be: (a) Unvented gas stoves (b) Wood stoves (c) Kerosene heaters Choose the correct code: (A) (a) and (b) only (B) (b) and (c) only (C) (b) only (D) (a), (b) and (c)

Last Answer : Answer: D

‘Minamata disaster’ in Japan was caused by pollution due to (A) Lead (B) Mercury (C) Cadmium (D) Zinc

Description : ‘Minamata disaster’ in Japan was caused by pollution due to (A) Lead (B) Mercury (C) Cadmium (D) Zinc

Last Answer : Answer: B

Which of the following is not a source of pollution in soil? (A) Transport sector (B) Agriculture sector (C) Thermal power plants (D) Hydropower plants

Description : Which of the following is not a source of pollution in soil? (A) Transport sector (B) Agriculture sector (C) Thermal power plants (D) Hydropower plants

Last Answer : (D) Hydropower plants 

In mega cities of India, the dominant source of air pollution is (A) transport sector (B) thermal power (C) municipal waste (D) commercial sector

Description : In mega cities of India, the dominant source of air pollution is (A) transport sector (B) thermal power (C) municipal waste (D) commercial sector

Last Answer : (A) transport sector

Common indicator organism of water pollution is

Description : Common indicator organism of water pollution is

Last Answer : Common indicator organism of water pollution is A. Escherichia coli B. Chloera vibrio C. Salmonella typhi D. Entamonella histolytica.

The common indicator organism of water pollution is

Description : The common indicator organism of water pollution is

Last Answer : The common indicator organism of water pollution is A. Entamoeba histolytica B. Lemna paucicostata C. Eichhornia crassipes D. Escherichia coli

The bacterium Bacillus thuringiensis is widely used in contemporary biology as (a) insecticide (b) agent for production of dairy products (c) source of industrial enzyme (d) indicator of water pollution

Description : The bacterium Bacillus thuringiensis is widely used in contemporary biology as (a) insecticide (b) agent for production of dairy products (c) source of industrial enzyme (d) indicator of water pollution

Last Answer : (a) insecticide

Which of the following is used as an atmospheric pollution indicator

Description : Which of the following is used as an atmospheric pollution indicator

Last Answer : Which of the following is used as an atmospheric pollution indicator A. Lepidoptera B. Lichens C. Lycopersicon D. Lycopodium

Which is indicator of industrial pollution

Description : Which is indicator of industrial pollution

Last Answer : Which is indicator of industrial pollution A. Biston belularia B. Chamaeleon C. Lichen D. Begnal tiger.

Pollution indicator is

Description : Pollution indicator is

Last Answer : Pollution indicator is A. Agrobacterium B. Lichen C. Pteridium D. Both A and B

Pollution indicator plants

Description : Pollution indicator plants

Last Answer : Pollution indicator plants A. Are resistant to pollution B. Can purify the atmosphere C. Are very ... to pollutants D. Can indicate onset of rains.

Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Description : Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Last Answer : (4) Lichens Explanation: Lichens are used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere. If air is very badly polluted with sulphur dioxide there may be no ... may be found. If the air is clean, shrub-by, hairy and leafy lichens become abundant.

Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Description : Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Last Answer : (4) Lichens Explanation: Lichens are an indicator of air pollution.

Which plant act as pollution indicator?

Description : Which plant act as pollution indicator?

Last Answer : Lichens

Organisms which are indicator of SO2 pollution of air (a) mosses (b) lichens (c) mushrooms (d) puffballs.

Description : Organisms which are indicator of SO2 pollution of air (a) mosses (b) lichens (c) mushrooms (d) puffballs.

Last Answer : (b) lichens

Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Description : Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Last Answer : Lichens

Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Description : Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Last Answer : Lichens

What Is Keyword Density?  A. The Number Of Times The Keyword Is Used / (divided By) The Total Word Count On The Page  B.The Number Of Times The Keyword Is Used In The Page DescriptionC.The Number Of Times The Keyword Is Used X (MULTIPLIED BY) The Total Word Count On Page D.None of the above

Description : What Is Keyword Density?  A. The Number Of Times The Keyword Is Used / (divided By) The Total Word Count On The Page  B.The Number Of Times The Keyword Is Used In The Page Description C.The ... Times The Keyword Is Used X (MULTIPLIED BY) The Total Word Count On Page  D.None of the above

Last Answer : A. The Number Of Times The Keyword Is Used / (divided By) The Total Word Count On The Page

Which of the following methods will you choose to prepare choropleth map of India showing urban density of population: (A) Quartiles (B) Quintiles (C) Mean and SD (D) Break - point

Description : Which of the following methods will you choose to prepare choropleth map of India showing urban density of population: (A) Quartiles (B) Quintiles (C) Mean and SD (D) Break - point

Last Answer : Answer: A

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.

Consider the following statements: 1. Relative density is a meaningful parameter for all types of soils 2. Relative density is a meaningful parameter only for cohesion soils. 3. Relative density is a better indicator of the denseness of an in-situ granular soil deposit than the void ratio. Which of these statements are correct? (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Description : Consider the following statements: 1. Relative density is a meaningful parameter for all types of soils 2. Relative density is a meaningful parameter only for cohesion soils. 3. Relative density is a better indicator of the denseness of an in ... , 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Last Answer : (d) 1 & 3 only

Which statement is false? (a) Many alkanes are soluble in water. (b) All alkanes have a lower density than water. (c) At room temperature some alkanes are liquids, some solids, some gases. (d) All alkanes burn

Description : Which statement is false? (a) Many alkanes are soluble in water. (b) All alkanes have a lower density than water. (c) At room temperature some alkanes are liquids, some solids, some gases. (d) All alkanes burn

Last Answer : Many alkanes are soluble in water