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 skillsβperfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does AFR stand for?
π‘ Hint: Consider the components involved in combustion.
Question 2
Easy
Define 'Excess Air.'
π‘ Hint: Think about what happens when thereβs more air than necessary.
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 does the term 'Stoichiometric AFR' refer to?
- A ratio of fuel to air
- The perfect air-fuel ratio
- The actual air-fuel ratio
π‘ Hint: Consider what 'stoichiometric' implies in combustion.
Question 2
True or False: A rich mixture means there is more fuel than air in the combustion process.
- True
- False
π‘ Hint: Think about how you would balance fuel and air.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A gas engine has a stoichiometric AFR of 15:1. If it operates with an actual AFR of 12:1, calculate the equivalence ratio.
π‘ Hint: Use the equivalence ratio formula to determine the relationship.
Question 2
An experiment shows that for complete combustion of 1.5 kg of fuel, 22 kg of air is needed. Determine if there's excess air and how much.
π‘ Hint: Calculate stoichiometric air first, then the excess air.
Challenge and get performance evaluation