I dispute the fuel ratio one. The answer in the quiz is “above 14.7:1”, but if you consider “above” to mean a larger number then that would be a lean mix. This really should be clearer.
4/10
The fuel mixture question is wrong. Above 14.7:1 is a lean mixture since any higher mixture will have more air in it (14.7:1 are 14.7g air per 1g fuel, a higher mixture of let’s say 16:1 will have 16g air per 1g fuel). A richer mixture will have more fuel, so the mixture number will be lower.
Comments
7/10
6/10
9/10. The firing order got me. :P
5 out 10
I dispute the fuel ratio one. The answer in the quiz is “above 14.7:1”, but if you consider “above” to mean a larger number then that would be a lean mix. This really should be clearer.
4/10
The fuel mixture question is wrong. Above 14.7:1 is a lean mixture since any higher mixture will have more air in it (14.7:1 are 14.7g air per 1g fuel, a higher mixture of let’s say 16:1 will have 16g air per 1g fuel). A richer mixture will have more fuel, so the mixture number will be lower.
7/10
6/10, not bad for me
6/10