Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does retention measure in timber preservation?
💡 Hint: Think about how much treatment is 'left' in the wood.
Question 2
Easy
Why is penetration depth important?
💡 Hint: How deep is the treatment into the wood?
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is 'retention' in timber preservation?
💡 Hint: Think about what retention signifies in preservation.
Question 2
True or False: Penetration indicates how deeply the preservative has treated the wood.
💡 Hint: Consider the meaning of penetration in context.
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
A new batch of timber has a total weight of 80 kg and retains 10 kg of preservatives. How would you calculate the retention, and why is this important for the longevity of the wood?
💡 Hint: Think about the proportion in relation to the weight.
Question 2
A timber piece shows that the preservative only penetrated 5 cm deep after testing. If the expected depth was at least 10 cm, discuss the implications for the wood’s durability.
💡 Hint: What happens if the treatment does not go deep enough?
Challenge and get performance evaluation