Dean,
Another question being challenged????
The question specifically said Air:Fuel..........hence thats why the answer was algebraically reversed.......I understand its unfair and is nothin more than a play on words!!
I cant see this as bein a 'typo'........its obviuosly a trick question as it was the only question in the exam which was worth 2marks!
Hows about this for a bad question:
After the power stroke, which valves are open?
A. Inlet
B. Outlet
C. Inlet and Outlet
D. None
There is no mention of valve lag or lead and also no mention of the position of the piston.......Hence now there can be two answers........
The outlet is open......but then the inlet valve also opens at the top of the exhaust stroke (which is after the power stroke).........
but are they talkin about what valves are open immiediately after the power stroke??? in which case it would be outlet!!
Its tricky, its unfair and its bang out of order, all because somebody cant be a***d sittin down and checkin what the questions are actually asking!!!!