SDI Final Exam Questions and Answers | Latest Version | 2024/2025 | Already Passed
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SDI Fin
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SDI Fin
SDI Final Exam Questions and Answers |
Latest Version | 2024/2025 | Already
Passed
What is the primary purpose of a water treatment facility?
A) To improve aesthetic quality
B) To ensure safe and potable drinking water
C) To increase water pressure
D) To reduce water costs
Which pro...
SDI Final Exam Questions and Answers |
Latest Version | 2024/2025 | Already
Passed
What is the primary purpose of a water treatment facility?
A) To improve aesthetic quality
✔✔B) To ensure safe and potable drinking water
C) To increase water pressure
D) To reduce water costs
Which process is commonly used for removing suspended solids from water?
A) Filtration
✔✔B) Coagulation and flocculation
C) Reverse osmosis
D) Distillation
What is the significance of maintaining proper pH levels in drinking water?
✔✔A) To prevent corrosion and scaling in pipes
B) To enhance flavor
1
,C) To increase water temperature
D) To reduce water hardness
How often should water quality tests be conducted in a treatment facility?
A) Once a month
B) Only when a problem arises
✔✔C) As per regulatory requirements and facility protocols
D) Once a year
What is a common method for disinfecting drinking water?
✔✔A) Chlorination
B) Filtration
C) Sedimentation
D) Carbonation
What does TDS stand for in water quality testing?
A) Total Dissolved Salts
B) Total Density Scale
2
,✔✔C) Total Dissolved Solids
D) Total Decomposition Standard
Why is it important to monitor chlorine residual in treated water?
✔✔A) To ensure effective disinfection and safe levels for consumption
B) To adjust the taste of water
C) To improve the color of the water
D) To enhance the smell of the water
What is the role of sedimentation in water treatment?
✔✔A) To allow heavy particles to settle out of the water
B) To increase the water's temperature
C) To add chemicals for disinfection
D) To filter out bacteria
Which type of filtration uses membranes to separate particles from water?
✔✔A) Reverse osmosis
B) Gravity filtration
3
, C) Sand filtration
D) Carbon filtration
What is the effect of hard water on plumbing systems?
A) Enhances flow
✔✔B) Causes scaling and mineral buildup
C) Increases water pressure
D) Improves water clarity
What is the purpose of an activated carbon filter?
✔✔A) To remove organic compounds and improve taste and odor
B) To increase water hardness
C) To disinfect water
D) To soften water
Which organization is responsible for regulating drinking water quality in the United States?
A) Environmental Protection Agency (EPA)
B) Centers for Disease Control and Prevention (CDC)
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