I'm studying for the FAA written exam. I got a 78% on my practice test earlier today. It's an improvement, but I need more focus on certain topics.

But here's one series of questions I'll never get wrong again because I came up with an easy way to keep it straight in my head.

FAA advisory circulars containing subject matter specifically related to Airmen are issued under which subject number? 60

FAA advisory circulars containing subject matter specifically related to Airspace are issued under which subject number? 70

FAA advisory circulars containing subject matter specifically related to Air Traffic Control are issued under which subject number? 90

Here's how to I'll remember which is which. The above bold words happen to be in alphabetical order and the only three numbers to remember for this type of question are 60, 70 and 90. Alphabetical order = numeric order

I truly hope I get this question on the real test. :-)

By the way, FAA advisory circulars can be found online here. I haven't figured out why this type of question is testable- who cares what number it is?