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( 1 ) For maximum alkalinity of water, pH value should be
- 1) more than 7
- 2) zero
- 3) less than 7
- 4) 14
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Show Answer Report Discussion in forumAnswer : 4) 14
Solution : For maximum alkalinity of water, pH value should be 14
discussion
Answer : 4) 14
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( 2 ) The intensity of rain is expressed in
- 1) cm/minute
- 2) cm/hour
- 3) cm/day
- 4) None of these
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Show Answer Report Discussion in forumAnswer : 2) cm/hour
Solution : The intensity of rain is expressed in cm/hour
discussion
Answer : 2) cm/hour
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( 3 ) The water temperature should preferably be less than __ degree Celsius.
- 1) 10
- 2) 15
- 3) 20
- 4) 25
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Show Answer Report Discussion in forumAnswer : 4) 25
Solution : The water temperature should preferably be less than 25 degree Celsius.
discussion
Answer : 4) 25
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( 4 ) Quality of water is said to be good if it is
- 1) free from pathogenic organism
- 2) colourless
- 3) tasteless
- 4) all
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Show Answer Report Discussion in forumAnswer : 4) all
Solution : Quality of water is said to be good if it is ree from pathogenic organism, colourless and tasteless.
discussion
Answer : 4) all
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( 5 ) The coagulant which is generally not used for treating the sewage, is
- 1) Alum
- 2) Ferric chloride
- 3) Ferric sulphate
- 4) Chlorinated coppers
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Show Answer Report Discussion in forumAnswer : 1) Alum
Solution : The coagulant which is generally not used for treating the sewage, is Alum
discussion
Answer : 1) Alum
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( 6 ) The sewage treatment in septic tanks is due to
- 1) anaerobic decomposition
- 2) aerobic decomposition
- 3) parasitic decomposition
- 4) None of these
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Show Answer Report Discussion in forumAnswer : 1) anaerobic decomposition
Solution : The sewage treatment in septic tanks is due to anaerobic decomposition
discussion
Answer : 1) anaerobic decomposition
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( 7 ) Hard water for public water supply is discarded because
- 1) it contains pathogenic bacterias
- 2) it possesses bad taste and odour
- 3) it contains lot of turbidity
- 4) it consumes more soap
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Show Answer Report Discussion in forumAnswer : 4) it consumes more soap
Solution : Hard water for public water supply is discarded because it consumes more soap
discussion
Answer : 4) it consumes more soap
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( 8 ) The maximum permitted loss of head in a rapid sand filter, is
- 1) 4m
- 2) 1m
- 3) 2m
- 4) 3m
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Show Answer Report Discussion in forumAnswer : 4) 3m
Solution : The maximum permitted loss of head in a rapid sand filter, is 3m
discussion
Answer : 4) 3m
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( 9 ) The average domestic consumption under normal conditions in an Indian city per day per person, is
- 1) 105 litres
- 2) 115 litres
- 3) 125 litres
- 4) 135 litres
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Show Answer Report Discussion in forumAnswer : 4) 135 litres
Solution : The average domestic consumption under normal conditions in an Indian city per day per person, is 135 litres
discussion
Answer : 4) 135 litres
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( 10 ) Underground water is obtained from
- 1) rains
- 2) rivers
- 3) lakes
- 4) reservoirs
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Show Answer Report Discussion in forumAnswer : 5) springs
Solution : Underground water is obtained from springs
discussion
Answer : 5) springs
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