How much to you know about engine technology

I think I got 25 out of 30 but I was guessing on practically every date and who was first question....and got pretty lucky with my guesses. I answered the question which read something like "what do modern engines use for cooling" wrong. The answers included both liquid and air.....I thought "well air cooled engines use air and liquid cooled engines use air as well so air is a better answer than liquid" but I guess that wasn't the right kind of logic. And the spark plug fires on the compression stroke.