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3 cards from this section. Quick, good the night before a test.
What defines a lean mixture in terms of the equivalence ratio?
Think about the balance between fuel and air.
What does it mean if ϕ is greater than 1?
Consider what happens when there is more fuel.
What does an equivalence ratio (ϕ) of less than 1 indicate?
Consider the meaning of 'lean' in the context of combustion.
True or False: An equivalence ratio greater than 1 results in more complete combustion.
Think about combustion efficiency and fuel balance.
Given that an engine runs at a stoichiometric AFR of 14.7 and the actual AFR is 10.5, calculate the equivalence ratio and explain the implications for combustion efficiency.
Clarify the effects of having a rich mixture on emissions and performance.
If a specific combustion system operates with an equivalence ratio of 0.8, what could be some potential issues in terms of exhaust emissions and engine performance?
Consider the balance of air and fuel and how that affects combustion chemistry.
6 more questions in this section. Enroll free to practise them all.
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