Question : In water treatment plants, the use of chloramines ensures _____________.
Option 1: taste and odour control
Option 2: weed control in reservoirs
Option 3: disinfection
Option 4: removal of permanent hardness
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Correct Answer: disinfection
Solution : The correct option is disinfection.
The use of chloramines in water treatment facilities enables disinfection and microbiological growth control in the water supply. Chloramines are a chlorine-ammonia mixture that provides longer-lasting residual disinfection than chlorine alone, assisting in the maintenance of water quality throughout the distribution system.
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Question : The amount of chlorine available in water after disinfection is called as
Option 1: Free chlorine
Option 2: Residual chlorine
Option 3: Free available chlorine
Option 4: Combined available chlorine
Question : Sextant is an instrument used in which of the following?
Option 1: Gynaecology
Option 2: Navigation
Option 3: Birth control
Option 4: Medical Treatment
Question : Water in plants is transported by :
Option 1: cambium
Option 2: phloem
Option 3: epidermis
Option 4: xylem
Question : Select the option that expresses the given sentence in passive voice.
They will not water the plants.
Option 1: The plants will not be watered by them.
Option 2: The plants will not be watered by us.
Option 3: The plants are not be watered by them.
Option 4: They shall not water the plants.
Question : Which method will be employed to test the hardness of water?
Option 1: Boiling
Option 2: Distillation
Option 3: Formation of lather with soap
Option 4: None of these
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