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.