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
Define workability in the context of concrete mix design.
💡 Hint: Think about why a concrete mix needs to be easy to handle.
Question 2
Easy
What does the characteristic strength (fck) represent?
💡 Hint: Recall the importance of time in concrete setting.
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 workability in concrete mix design?
- The ease of mixing and placing concrete
- The strength of concrete
- The cost of concrete
💡 Hint: Consider the handling of concrete on a job site.
Question 2
True or False: A lower water-cement ratio always leads to better workability.
- True
- False
💡 Hint: Think about the effects of too little water.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A construction project requires a high-strength concrete that will be exposed to harsh weather. Identify the key considerations for mix design that prioritize strength and durability.
💡 Hint: Think about environmental factors and material selection that impact durability.
Question 2
Calculate the target mean strength for a concrete mix if the characteristic strength is 25 MPa and the standard deviation is 4 MPa using k = 1.5.
💡 Hint: Use the given formula to incorporate all the variables.
Challenge and get performance evaluation