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 binding agent in concrete?
💡 Hint: Think about what holds concrete together.
Question 2
Easy
Name one type of fine aggregate.
💡 Hint: It’s often found in construction areas.
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 main purpose of using admixtures in concrete?
- To increase strength
- To modify properties
- Both A and B
💡 Hint: Think about why we might want to change concrete's behavior.
Question 2
True or False: Water used in concrete should have a pH below 6.
- True
- False
💡 Hint: Remember the acceptable range for water.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A contractor needs to prepare concrete for a pavement design involving 400 kg of cement with a required water-cement ratio of 0.5. Calculate the total amount of water needed.
💡 Hint: Use the water-cement ratio formula.
Question 2
Discuss the effects of using contaminated water for mixing concrete and propose a method to ensure water quality.
💡 Hint: Think about purification methods.
Challenge and get performance evaluation