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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is sludge?
💡 Hint: Think about what waste might look like in a tank.
Question 2
Easy
Define mass balance.
💡 Hint: It ensures that nothing is lost in the process.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What happens to the concentration of contaminants when rainwater is added to sludge?
- Decreases
- Increases
- Remains the same
💡 Hint: Consider how volume affects concentration.
Question 2
True or False: Headspace in a container does not affect sample analysis.
- True
- False
💡 Hint: Think about what happens when gases escape.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A waste tank contains 500 kg of sludge with a concentration of 150 mg/kg of contaminant A. If 300 liters of rainwater is added, calculate the new concentration of A in the aqueous phase, assuming complete mixing.
💡 Hint: Use the formula C₁V₁ + C₂V₂ = C₃V₃.
Question 2
Discuss how increasing the volume of headspace in a sampling bottle alters the concentration of volatile contaminants. Use a specific example.
💡 Hint: Consider the relationship between vapor pressure and volume of air.
Challenge and get performance evaluation