Quarter deck you idiot!!!!!!!!!!!!!!!!
Yo Praxis the tests at OCS are easy, in the begining of each chapter there are ELO's, they are what you need to know for the test, know the ELO and you will know the answers for the tests. The tests are multiple guess, I use to rip out my ELO's and fill in the answers, that way I could study whenever we had some free time, ie after chow, waiting on the parade deck, and etc. They are not hard the lowest grade I got (once) was an 80 the rest were 90 and up, they are not hard.
The hardest thing at OCS for me was the Five paragraph order format. Study up on it now, you will need it for SULE2.