Scored 480, missed two questions.
(Sorry if this post gets duplicated but it didn't go through the first time I submitted it)
The question about the normally aspirated engine I believe was ambiguous. I wasn't sure whether to pick atmospheric pressure, or vacuum created by the piston as the reason for their being airflow. The reason being that the airflow is a result of the pressure differential between the atmosphere and that inside the cylinder, so either of those two choices by themselves is really only half the answer. I more or less randomly picked the vacuum answer since it seemed more a specific aspect of an engine - but that was the wrong one :-)
In fact, the other multiple choice answer "gravity" plays a factor in the whole thing too since there would be no atmosphere if there were no gravity :-) Gravity also produces the atmospheric pressure as well.
The other one I missed was the one with the gear drive train. I knew which direction and what (relative) speeds the gears were spinning but was not familiar with the terminology of the labels.