Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary function of plasticizers in concrete?
💡 Hint: Think about how they help in mixing.
Question 2
Easy
Define what a retarder does.
💡 Hint: Consider the conditions they are used for.
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 is the primary purpose of using plasticizers in concrete?
- Increase water content
- Enhance workability
- Delay setting time
💡 Hint: Consider what happens to the workability when plasticizers are added.
Question 2
True or False: Retarders speed up the setting time of concrete.
- True
- False
💡 Hint: Think about their use in hot weather.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a concrete mix for a large outdoor slab that needs to cure under low temperatures yet maintain workability during transport. Justify your choice of admixtures.
💡 Hint: Consider the temperature and the challenges that may arise during mixing and curing.
Question 2
Analyze the benefits and drawbacks of using air-entraining agents in high-strength concrete intended for bridge construction.
💡 Hint: Think about the trade-offs between durability and strength in construction.
Challenge and get performance evaluation