Practice River And Surface Water (6.6.3) - Water

Practise this section

8 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What are some common impurities found in river and surface water?
Show hintHide hint
Think about materials that are not water.
Question 2.
Why is pH testing important?
Show hintHide hint
Remember, pH affects setting time and strength.
3Question 3.
What is a common issue with river water quality?
- Pure and Clean
- Suspended Solids
- Safe for all uses
Show hintHide hint
Consider what nature might add to the water.
4Question 4.
Is river water suitable for concrete without testing?
- True
- False
Show hintHide hint
What if the water has contaminants?
Question 5.
You are given river water with a pH of 5.8 and a high level of organic matter. Describe your approach to remedy this situation for construction use.
Show hintHide hint
Think about how we adjust pH for swimming pools.
Question 6.
A construction site wants to use surface water from near an industrial area. Discuss the risks and necessary precautions.
Show hintHide hint
What threats can chemicals present to concrete integrity?

4 more questions in this section. Enroll free to practise them all.