Presence of bacteria in potable (drinking) water causes (A) Turbidity (B) Disease (C) Bad odour (D) Bad taste & colour

Presence of bacteria in potable (drinking) water causes
(A) Turbidity
(B) Disease
(C) Bad odour
(D) Bad taste & colour
by

1 Answer

Answer :

(B) Disease
by

Related questions

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

Chloramines are used in water treatment for (A) Disinfection and control of taste & odour (B) Corrosion control (C) Removing turbidity (D) Control of bacteria

Description : Chloramines are used in water treatment for (A) Disinfection and control of taste & odour (B) Corrosion control (C) Removing turbidity (D) Control of bacteria

Last Answer : (A) Disinfection and control of taste & odour

Disinfection of drinking water, is done to remove (A) Odour (B) Bacterias (C) Turbidity (D) Colour

Description : Disinfection of drinking water, is done to remove (A) Odour (B) Bacterias (C) Turbidity (D) Colour

Last Answer : (B) Bacterias

Disinfection of drinking water is done to remove (A) Turbidity (B) Odour (C) Colour (D) Bacterias

Description : Disinfection of drinking water is done to remove (A) Turbidity (B) Odour (C) Colour (D) Bacterias

Last Answer : (D) Bacterias

Filtration of water is done to remove (A) Colour (B) Odour (C) Turbidity (D) Pathogenic bacteria

Description : Filtration of water is done to remove (A) Colour (B) Odour (C) Turbidity (D) Pathogenic bacteria

Last Answer : (C) Turbidity

Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes (A) Foaming(B) Odour nuisances(C) Undesirable plant growth(D) Turbidity

Description : Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes (A) Foaming (B) Odour nuisances (C) Undesirable plant growth (D) Turbidity

Last Answer : (C) Undesirable plant growth

Hard water for public water supply is discarded because (A) It consumes more soap (B) It contains lot of turbidity (C) It contains pathogenic bacterias (D) It possesses bad taste and odour

Description : Hard water for public water supply is discarded because (A) It consumes more soap (B) It contains lot of turbidity (C) It contains pathogenic bacterias (D) It possesses bad taste and odour

Last Answer : (A) It consumes more soap

Deaeration of water in its treatment is necessary, as it (A) Minimises its turbidity (B) Helps in controlling its taste and odour (C) Minimises its corrosiveness (D) None of these

Description : Deaeration of water in its treatment is necessary, as it (A) Minimises its turbidity (B) Helps in controlling its taste and odour (C) Minimises its corrosiveness (D) None of these

Last Answer : (C) Minimises its corrosiveness

The main use of activated carbon in water treatment is to control (A) Bacterial growth (B) Taste and odour (C) Turbidity (D) None of these

Description : The main use of activated carbon in water treatment is to control (A) Bacterial growth (B) Taste and odour (C) Turbidity (D) None of these

Last Answer : (B) Taste and odour

. Dechlorination of treated water is necessary to (A) Remove residual turbidity (B) Reduce the bacterial load on filter (C) Control taste and odour (D) Remove chlorinous taste

Description : . Dechlorination of treated water is necessary to (A) Remove residual turbidity (B) Reduce the bacterial load on filter (C) Control taste and odour (D) Remove chlorinous taste

Last Answer : (D) Remove chlorinous taste

Removal of __________ results from the disinfection of water. (A) Turbidity(B) Odour(C) Hardness(D) Bacteria

Description : Removal of __________ results from the disinfection of water. (A) Turbidity (B) Odour (C) Hardness (D) Bacteria

Last Answer : (D) Bacteria

Aeration of water is done to remove (A) Odour (B) Colour (C) Bacterias (D) Turbidity

Description : Aeration of water is done to remove  (A) Odour  (B) Colour  (C) Bacterias  (D) Turbidity 

Last Answer : (A) Odour 

Aeration Of water is done to remove a) Odour* b) Colour c) Bacterias d) Hardness e) Turbidity

Description : Aeration Of water is done to remove a) Odour* b) Colour c) Bacterias d) Hardness e) Turbidity

Last Answer : a) Odour*

The following is the physical characteristic of sewage A. Turbidity B. Colour C. Odour D. All the above

Description : The following is the physical characteristic of sewage A. Turbidity B. Colour C. Odour D. All the above

Last Answer : ANS: D

. Disinfection of water is done to remove (A) Color (B) Bad taste (C) Foul odour (D) Bacteria

Description : . Disinfection of water is done to remove (A) Color (B) Bad taste (C) Foul odour (D) Bacteria

Last Answer : (D) Bacteria

Lime and soda ash are added to water to remove (A) Bicarbonates & sulphates of calcium and magnesium (B) Undesirable taste and odour (C) Bacteria (D) Its corrosiveness

Description : Lime and soda ash are added to water to remove (A) Bicarbonates & sulphates of calcium and magnesium (B) Undesirable taste and odour (C) Bacteria (D) Its corrosiveness

Last Answer : (A) Bicarbonates & sulphates of calcium and magnesium

Maximum permissible turbidity in potable water is __________ ppm. (A) 1 (B) 10 (C) 250 (D) 1000

Description : Maximum permissible turbidity in potable water is __________ ppm. (A) 1 (B) 10 (C) 250 (D) 1000

Last Answer : (B) 10

Alum [Al2 (SO4 )3 ] is used as a coagulant in water treatment to remove (A) Colour (B) Turbidity (C) Bacteria (D) All (A), (B) and (C)

Description : Alum [Al2 (SO4 )3 ] is used as a coagulant in water treatment to remove (A) Colour (B) Turbidity (C) Bacteria (D) All (A), (B) and (C)

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

Presence of a certain minimum quantity of fluorine is desirable in potable water to prevent (A) Dental cavities (B) Scale formation (C) Water-borne disease (D) Corrosion

Description : Presence of a certain minimum quantity of fluorine is desirable in potable water to prevent (A) Dental cavities (B) Scale formation (C) Water-borne disease (D) Corrosion

Last Answer : (A) Dental cavities

Disinfection of water with ozone is not good because (A) It vanishes before water reaches the consumers (B) It removes the colour, taste and odour from water as bacterias (C) It adds taste to the water(D) It is more efficient than chlorine in killing bacterias

Description : Disinfection of water with ozone is not good because  (A) It vanishes before water reaches the consumers  (B) It removes the colour, taste and odour from water as bacterias  (C) It adds taste to the water (D) It is more efficient than chlorine in killing bacterias 

Last Answer : (D) It is more efficient than chlorine in killing bacterias 

Foul odour and bad taste of water is removed by treating with (A) Alum (B) Bleaching powder (C) Activated carbon (D) Copper sulphate

Description : Foul odour and bad taste of water is removed by treating with (A) Alum (B) Bleaching powder (C) Activated carbon (D) Copper sulphate

Last Answer : (C) Activated carbon

The effect of corona can be detected by (a) presence of ozone detected by odour (b) hissing sound (c) faint luminous glow of bluish colour (d) all of the above

Description : The effect of corona can be detected by (a) presence of ozone detected by odour (b) hissing sound (c) faint luminous glow of bluish colour (d) all of the above

Last Answer : (d) all of the above

The pollutants in water can be recognized by a) bad taste b)offensive odour c)growth of aquatic weed d)all the above

Description : The pollutants in water can be recognized by a) bad taste b)offensive odour c)growth of aquatic weed d)all the above

Last Answer : d)all the above

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

TLV of mercury in potable (drinking) water is about __________ ppm. (A) 0.001 (B) 0.1 (C) 1 (D) 5

Description : TLV of mercury in potable (drinking) water is about __________ ppm. (A) 0.001 (B) 0.1 (C) 1 (D) 5

Last Answer : (A) 0.001

Reverse osmosis is normally used for the (A) Separation of isotopes of uranium from gaseous uranium hexafluoride (B) Separation of helium from natural gas (C) Desalination of brackish water to produce potable (drinking) water (D) Purification of oxygen

Description : Reverse osmosis is normally used for the (A) Separation of isotopes of uranium from gaseous uranium hexafluoride (B) Separation of helium from natural gas (C) Desalination of brackish water to produce potable (drinking) water (D) Purification of oxygen

Last Answer : (C) Desalination of brackish water to produce potable (drinking) water

Drinking (potable) water treatment does not involve(A) Coagulation(B) Sedimentation(C) Softening(D) Disinfection

Description : Drinking (potable) water treatment does not involve (A) Coagulation (B) Sedimentation (C) Softening (D) Disinfection

Last Answer : (C) Softening

. Potable water means the water used for (A) Fire-fighting (B) Cooling (C) Drinking (D) Evaporation to produce steam

Description : . Potable water means the water used for (A) Fire-fighting (B) Cooling (C) Drinking (D) Evaporation to produce steam

Last Answer : (C) Drinking

Which of the following reasons are responsible for adoption of post-chlorination of water? 1. Chlorine demand is reduced. 2. Possibility of taste and odour formation is reduced. 3. Possibility of carcinogenic compounds is reduced. 4. Chloramines are formed. (a) 1, 2, 3 & 4 (b) 1, 2 & 3 only (c) 1, & 4 only (d) 2, 3 & 4 only

Description : Which of the following reasons are responsible for adoption of post-chlorination of water? 1. Chlorine demand is reduced. 2. Possibility of taste and odour formation is reduced. 3. Possibility of carcinogenic compounds is reduced. 4. Chloramines ... b) 1, 2 & 3 only (c) 1, & 4 only (d) 2, 3 & 4 only

Last Answer : (c) 1, & 4 only

Hydrazine is used in water treatment for the removal of (A) Colloidal impurities (B) Dissolved oxygen (C) Turbidity (D) Chlorinous taste

Description : Hydrazine is used in water treatment for the removal of (A) Colloidal impurities (B) Dissolved oxygen (C) Turbidity (D) Chlorinous taste

Last Answer : (B) Dissolved oxygen

Presence of __________ bacteria in water causes disease like typhoid. (A) Aerobic (B) Pathogenic (C) Anaerobic (D) Non-pathogenic

Description : Presence of __________ bacteria in water causes disease like typhoid. (A) Aerobic (B) Pathogenic (C) Anaerobic (D) Non-pathogenic

Last Answer : (B) Pathogenic

Water used for mixing concrete should be [ A ] Slightly acidic [ B ] Free from bacteria [ C ] Distilled [ D ] Potable

Description : Water used for mixing concrete should be [ A ] Slightly acidic [ B ] Free from bacteria [ C ] Distilled [ D ] Potable

Last Answer : [ D ] Potable

Which of the following is not a feature of potable water? a) It must be clean, colourless and odourless. b) It must be free from bacteria c) It must have excessive sodium ,calcium and magnesium d) It must contain dissolved oxygen and carbon dioxide

Description : Which of the following is not a feature of potable water? a) It must be clean, colourless and odourless. b) It must be free from bacteria c) It must have excessive sodium ,calcium and magnesium d) It must contain dissolved oxygen and carbon dioxide

Last Answer : c) It must have excessive sodium ,calcium and magnesium

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

Turbidity of water is ____. a. taste c. cloudiness b. smell d. content

Description : Turbidity of water is ____. a. taste c. cloudiness b. smell d. content

Last Answer : c. cloudiness

In water treatment plant, use of chloramines ensures (1) taste and odour control (2) weed control in reservoirs (3) disinfection (4) removal of permanent hardness

Description : In water treatment plant, use of chloramines ensures (1) taste and odour control (2) weed control in reservoirs (3) disinfection (4) removal of permanent hardness

Last Answer : (3) disinfection Explanation: The particular type of chloramine used in drinking water disinfection is called monochloramine. Chloramine is chiefly a secondary disinfectant that are added to water that has already been disinfected with a primary disinfectant, often chlorine

In water treatment plant, use of chloramines ensures _____ (1) taste and odour control (2) weed control in reservoirs (3) disinfection (4) removal of permanent hardness

Description : In water treatment plant, use of chloramines ensures _____ (1) taste and odour control (2) weed control in reservoirs (3) disinfection (4) removal of permanent hardness

Last Answer : disinfection

Disappearance of pink colour of water of a well due of KMnO4 indicates that water contains (A) Acidity (B) Alkalinity (C) Turbidity (D) Organic matter

Description : Disappearance of pink colour of water of a well due of KMnO4 indicates that water contains (A) Acidity (B) Alkalinity (C) Turbidity (D) Organic matter

Last Answer : (D) Organic matter

Turbidity of water is expressed (A) In ppm (B) In numbers in an arbitrary scale (C) By pH value (D) By colour code

Description : Turbidity of water is expressed  (A) In ppm  (B) In numbers in an arbitrary scale  (C) By pH value  (D) By colour code 

Last Answer : (A) In ppm

Hardness of water is caused by (A) Presence of soap lather (B) Presence of chlorides and sulphates of sodium and potassium (C) Presence of bicarbonates, sulphates or chlorides of calcium and magnesium (D) Turbidity

Description : Hardness of water is caused by  (A) Presence of soap lather  (B) Presence of chlorides and sulphates of sodium and potassium  (C) Presence of bicarbonates, sulphates or chlorides of calcium and magnesium  (D) Turbidity 

Last Answer : (C) Presence of bicarbonates, sulphates or chlorides of calcium and magnesium 

Q No: 271 Pick up the correct statement from the following: A. Turbidity is more in strong sewage B. The black colour indicates septic sewage C. The sewage omits offensive odours after four hours D. All the above

Description : Q No: 271 Pick up the correct statement from the following: A. Turbidity is more in strong sewage B. The black colour indicates septic sewage C. The sewage omits offensive odours after four hours D. All the above

Last Answer : ANS: D

Pick out the wrong statement.(A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days by the biological decomposition of the organic matter present in water stream present as food for the living organism (C) BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these

Description : Pick out the wrong statement. (A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days ... BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these

Last Answer : (D) None of these

Pick up the incorrect statement from the following: (A) Water disinfected with ozone is free from any odour (B) Ozone removes bacterias as well as colour and odour (C) Ozonized water becomes tasteless (D) None of these

Description : Pick up the incorrect statement from the following: (A) Water disinfected with ozone is free from any odour (B) Ozone removes bacterias as well as colour and odour (C) Ozonized water becomes tasteless (D) None of these

Last Answer : (C) Ozonized water becomes tasteless

Pick up the correct statement from the following: (A) For determination of small colour intensities, tintometer is generally used (B) The odour of water sample is generally measured by a term called odour intensity (C) The colour of water sample may be detected by Nessler tube (D) All the above

Description : Pick up the correct statement from the following: (A) For determination of small colour intensities, tintometer is generally used (B) The odour of water sample is generally measured by a term called odour intensity (C) The colour of water sample may be detected by Nessler tube (D) All the above

Last Answer : (D) All the above

An organic liquid `A` containing `C,H` and `O` has a pleasant odour with a boiling point of `78^(@)C`. On boiling. A with conc. `H_(2)SO_(4)` a colour

Description : An organic liquid `A` containing `C,H` and `O` has a pleasant odour with a boiling point of `78^(@)C`. On boiling. A with conc. `H_(2)SO_(4)` a colour

Last Answer : An organic liquid `A` containing `C,H` and `O` has a pleasant odour with a boiling point of `78^(@)C`. On boiling ... . `C_(2)H_(5)OH` D. `C_(2)H_(6)`

An organic liquid `A` containing `C,H` and `O` has a pleasant odour with a boiling point of `78^(@)C`. On boiling. A with conc. `H_(2)SO_(4)` a colour

Description : An organic liquid `A` containing `C,H` and `O` has a pleasant odour with a boiling point of `78^(@)C`. On boiling. A with conc. `H_(2)SO_(4)` a colour

Last Answer : An organic liquid `A` containing `C,H` and `O` has a pleasant odour with a boiling point of `78^(@)C`. On boiling ... . `C_(2)H_(6)` D. `C_(2)H_(5)OH`

The presence of ozone due to corona is harmful because it (a) reduces power factor (b) corrodes the material (c) gives odour (d) transfer energy to the ground (e) none of the above

Description : The presence of ozone due to corona is harmful because it (a) reduces power factor (b) corrodes the material (c) gives odour (d) transfer energy to the ground (e) none of the above

Last Answer : (b) corrodes the material

A dental disease characterised by mottling of teeth is due to the presence of certain chemical element in drinking water. Which of the following is th

Description : A dental disease characterised by mottling of teeth is due to the presence of certain chemical element in drinking water. Which of the following is th

Last Answer : A dental disease characterised by mottling of teeth is due to the presence of certain chemical element ... mercury B. fluorine C. Boron D. Chlorine

Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm. (A) 1 (B) 50 (C) 5000 (D) 10000

Description : Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm. (A) 1 (B) 50 (C) 5000 (D) 10000

Last Answer : (B) 50

Bad odour in sanitary latrines is reduced by periodically sprinkling (A) Bleaching powder (B) Lime powder (C) Aluminium sulphate (D) None of these

Description : Bad odour in sanitary latrines is reduced by periodically sprinkling (A) Bleaching powder (B) Lime powder (C) Aluminium sulphate (D) None of these

Last Answer : Option B