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Chapter: 29 / Q: 36
The population living in Wah Cantt is using water from a deep spring, which is considered to be relatively free from organic contamination but rich in calcium, bicarbonates and sulphates. On account of these properties, people of Wah enjoy protection against:
Chapter: 29 / Q: 37
An unsanitary bore-hole latrine with lots of flies is present within 10 feet of a well in a villag The disease more likely to be transmitted through drinking this well water is:
Chapter: 29 / Q: 38
Child of 5 years has been drinking water containing 30 mg/L of nitrates and 0.5 mg/L of fluorid He presents with cyanosis to the hospital. He is likely to be suffering from:
Chapter: 29 / Q: 39
Required amount of chlorine was added to a large body of water after sedimentation. The pH of water was 4.0 and level of sulphides was negligibl A contact period of one hour was ensure Eventually, it was found that chlorination was not successful. The likely reason was:
Chapter: 29 / Q: 40
10 people were working on a project in an office with no cross ventilation and air conditioning on account of load shedding. The room temperature was 75ºF and humidity around 60%. They started having discomfort after 1 hour because of:
Chapter: 29 / Q: 41
A water sample was taken from a source where catchment area included a large agricultural lan It was declared unfit for human consumption on account of raised concentration of:
Chapter: 29 / Q: 42
During a sanitary inspection of a rapid sand filtration plant, slowing of the filtration rate was observed owing to loss of hea Which method will you suggest to give head to water in such a situation?
Chapter: 29 / Q: 43
You were required to chlorinate well water; you added required amount of bleaching powder solution to the water and allowed an overnight contact tim What is your recommendation regarding consumption of this water for drinking
Chapter: 29 / Q: 44
A dental surgeon appointed in rural health centre reports an increased incidence of dental carries in the children of that are The relevant preventive measure that he should suggest to the health authorities is:
Chapter: 29 / Q: 45
Chlorination of water was done by addition of bleaching powder solution containing 10% available chlorin One hour contact time was ensure What is your recommendation regarding use of this water for drinking?
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