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 gas is produced when calcium carbide reacts with moisture?
💡 Hint: Think of the flammable gas that you use in welding.
Question 2
Easy
Why is moisture content important in concrete?
💡 Hint: Consider how too much or too little water could change the mix.
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 produced when calcium carbide reacts with water?
- Hydrogen gas
- Acetylene gas
- Carbon dioxide
💡 Hint: Think of the use of acetylene in welding.
Question 2
True or False: The Calcium Carbide Method is slower than the oven drying method.
- True
- False
💡 Hint: Consider which method uses more time.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a construction site using the Calcium Carbide Method. If the measured pressure indicates a moisture content of 5%, calculate the appropriate water needed for a 1m³ concrete mix with a water-cement ratio of 0.5.
💡 Hint: Calculate the total water needed and adjust for the moisture content.
Challenge and get performance evaluation