Not exactly a trucker, more of a bus driver

So like the title says, I'm not a trucker or trying to be one, Im studying to be a bus driver for my university. Im planning on taking the CDL knowledge test on Friday (a couple days from now) and I was wondering if anyone had any tips on the Air Brake and General Knowledge sections?
Air Brakes have just been a thorn in my side as the section seems like numbers and technical terms. With general knowledge I'm looking for a way to sift through the garbage and find the very important concepts.

My boss suggested I use Roadwars.com to study and as far as examples of questions go, the site has been great. The downfall lies in the limited number of questions; I keep seeing the same one ones two or three times every few tests. I hope the Ohio test isnt hard cause I really need to get it the first time around!!

Thanks so much guys!!

 

I dont think I have to take all of the tests. Passenger, Air Brake and Gen. Knowledge are the only ones required for a Class B w/ Passenger.

Thanks for the link!!! Im gonna study the heck out that site in the next 24 hours!

EDIT: Hey wanna know something funny?--that link you gave me IS Roadwars! The Roadwars URL redirects to cristcdl.

I guess that means I'm on the right track then huh? lol

 

I do have the CDL manual. Thank you for the link. How close is this to the actual test?

 

They are. This site's questions are much more straightforward than Roadwars' Air Brake practice test.