Swimming pool water can be treated using any of the following methods: chlorine, ultraviolet rays, or bromine ____________?
Show answer Hide answer
Answer: A. Disinfected
Explanation
Swimming pool water is treated with sanitizing agents like chlorine, bromine, or ultraviolet rays to eliminate pathogens. This essential water treatment process is scientifically referred to as disinfection to destroy harmful bacteria and viruses. Effective disinfection prevents the transmission of waterborne diseases among swimmers using public or private pools. Pool sanitation requires maintaining residual disinfectant concentrations to neutralize microbial contamination continuously. Chlorine and bromine release hypochlorous acid compounds that destroy cell walls of harmful microorganisms rapidly. Ultraviolet radiation systems provide chemical-free disinfection by scrambling microbial DNA when water passes through UV lamps.
Pool operators monitor chemical sanitizer levels and pH balances daily to ensure safe swimming water conditions. Proper pool disinfection prevents outbreaks of skin infections, gastrointestinal illnesses, and eye irritations. Modern aquatic facilities often combine UV treatment with low-dose chlorine to minimize chemical odors and irritation. Infected describes a living host organism harboring disease-causing pathogens rather than describing treated water. Cleaned is an informal descriptive term that fails to specify the precise chemical or biological disinfection process. Iodized refers to adding iodine compounds for nutritional fortification rather than serving as a standard pool sanitizer.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Runoff originating from catchments, roads, rooftops, and fallow terrain is called ____________________?
Show answer Hide answer
Answer: C. Storm water
Storm water refers specifically to surface runoff generated by precipitation falling on catchments and urban surfaces. Rainwater flowing across rooftops, roads, and fallow terrain collects into drainage systems as storm...
Q2. The total length of impervious flooring downstream of a hydraulic structure is calculated using Bligh’s Theory __________________?
Show answer Hide answer
Answer: C. Khosla
Khosla's theory provides the mathematical methods used to calculate pressure distribution and seepage length. Hydraulic engineers rely on Khosla's independent variable methods to design safe impervious floor lengths. Thi...
Q3. The coefficient of discharge in comparison to the coefficient of velocity is found to be ____________________?
Show answer Hide answer
Answer: A. Lesser
The coefficient of discharge is always less than the coefficient of velocity due to energy and contraction losses. Discharge coefficient equals the product of velocity coefficient and contraction coefficient, which is le...
Q4. Velocity measurements in a large canal or channel taken at a depth of ___________________ yield the mean velocity when using a current meter?
Show answer Hide answer
Answer: C. 0.6 depth
Velocity measurements taken at 0.6 depth from the water surface yield the mean velocity in a channel. Vertical velocity profiles in open channels show that mean speed occurs consistently near sixty percent depth. Current...
Q5. The FPS unit for water volume in irrigation practice is the Acre-Foot; therefore, one Acre-Foot equals ___________________?
Show answer Hide answer
Answer: C. 43560 cubic feet
One acre-foot of water volume in irrigation engineering is precisely equal to 43,560 cubic feet. This volume covers an area of one acre to a uniform depth of one foot. Using acre-feet simplifies large-scale agricultural...
Q6. Water particles retained within root zone soil pores against gravity via _____________ are identified as capillary water?
Show answer Hide answer
Answer: B. Capillary force
Capillary water is retained within root zone soil pores against gravity via strong capillary forces. Surface tension and adhesion draw moisture into small pore spaces, keeping it accessible for plant roots. This water fr...