How to use water purification tablets - Exam
  • 1. What is the primary purpose of water purification tablets?
A) To add flavor to water
B) To kill harmful microorganisms in water
C) To make water softer
D) To filter out sediment
  • 2. The effectiveness of purification tablets is most impacted by which water condition?
A) Container Material
B) Water Clarity
C) Water Temperature
D) Tablet Expiration Date
  • 3. What is the typical active ingredient in water purification tablets?
A) Vitamin C
B) Fluoride
C) Chlorine or Iodine
D) Sodium Chloride
  • 4. How long should you typically wait after adding the tablet before drinking the water?
A) 1 hour
B) 5 minutes
C) 30 minutes
D) Immediately
  • 5. What type of water is most suitable for purification tablets?
A) Boiling water
B) Muddy or stagnant water
C) Salt water
D) Clear water free of debris
  • 6. What should you do if the water is cloudy or contains sediment?
A) Use more tablets
B) Filter the water before using tablets
C) The tablets will handle the sediment
D) Boil the water after using tablets
  • 7. Can water purification tablets remove chemicals or heavy metals?
A) Only when combined with boiling
B) Yes, they remove all contaminants
C) Yes, but only some chemicals
D) No
  • 8. What is a potential side effect of using iodine-based water purification tablets?
A) Hair growth
B) Increased energy
C) Improved eyesight
D) Thyroid issues
  • 9. How should you store water purification tablets?
A) In a humid environment
B) In a cool, dry place
C) In direct sunlight
D) In the freezer
  • 10. What should you do if the purified water still has a strong chemical taste?
A) Nothing, the taste is normal
B) Boil the water again
C) Add more tablets
D) Add a taste neutralizer
  • 11. How many tablets are typically needed per liter or quart of water?
A) Always one tablet
B) Depends on the tablet instructions
C) Always two tablets
D) Always three tablets
  • 12. What is the shelf life of most water purification tablets?
A) 6 months
B) Varies, check the expiration date
C) Indefinite
D) 1 year
  • 13. Which group should be cautious about using iodine-based purification tablets?
A) Children over 12
B) The elderly
C) Athletes
D) Pregnant women
  • 14. What is the best way to confirm the effectiveness of the tablets after use?
A) Check for a change in color.
B) There is no way to visually confirm.
C) Taste the water.
D) Check for cloudiness.
  • 15. If you can't filter the water, what is the best way to prepare it for purification tablets?
A) Add more tablets than recommended
B) Use warm water
C) Stir the water vigorously
D) Let the sediment settle before adding tablets
  • 16. What alternative method can be used alongside water purification tablets for best results?
A) Boiling
B) Distillation
C) Freezing
D) Adding lemon juice
  • 17. If you are at high altitude, does the waiting time after adding the tablet change?
A) Decrease the waiting time
B) Increase the number of tablets
C) No, altitude doesn't matter
D) Sometimes, follow manufacturer instructions
  • 18. What is the risk of drinking untreated water, even if it looks clear?
A) Dehydration
B) Illness from microorganisms
C) Nutrient deficiency
D) Metal poisoning
  • 19. Why are water purification tablets useful for emergency preparedness?
A) Filter out all pollutants
B) Improve water taste
C) Provide essential minerals
D) Portable and effective
  • 20. What is the most important instruction to follow when using purification tablets?
A) Use as many as possible.
B) Always boil the water first.
C) Only use on clear water.
D) Read and follow the product label.
  • 21. If you accidentally ingest a water purification tablet directly, what should you do?
A) Drink plenty of water
B) Nothing, it's harmless
C) Contact a medical professional
D) Induce vomiting
  • 22. How does water temperature affect the effectiveness of purification tablets?
A) Temperature does not affect tablet effectiveness.
B) Tablets only work in boiling water.
C) Colder water requires longer treatment time.
D) Warmer water requires longer treatment time.
  • 23. What is the best container to use for purifying water with tablets?
A) Porous container
B) Any clean container
C) Metal container
D) Glass container
  • 24. What water source is LEAST suitable for purification tablets?
A) River Water
B) Rain Water
C) Lake Water
D) Sewage
  • 25. Can you use expired water purification tablets?
A) Expiration dates don't matter
B) They are completely ineffective
C) Effectiveness may be reduced
D) They become more potent
  • 26. Which statement is true about the use of purification tablets?
A) They are a permanent solution
B) They improve the taste of water
C) They add minerals to the water
D) They are a short term solution
  • 27. Can purification tablets be used to treat water for large groups of people?
A) Yes, but require careful dosage calculations
B) No, they are only for individual use
C) Only for small families
D) Yes, use the same dosage as for one person
  • 28. Is it safe to use purification tablets every day for a long period of time?
A) Not recommended, seek alternative solutions
B) Yes, it's perfectly safe
C) Yes, if you use a taste neutralizer
D) Yes, if you are healthy
  • 29. What waterborne diseases can purification tablets help prevent?
A) Giardia and Cholera
B) Measles
C) The Common Cold
D) Influenza
Created with That Quiz — the site for test creation and grading in math and other subjects.