I'm currently in EMT-IV class in Tennessee, and Really the best thing that I can tell you is, Study the questions inside the book on the chapter reviews, the critical thinking.
My Instructor has told us several times that when we take National Reg... That all the answers to one question will be correct ones, we have to pick the best one. So there is something that you have to keep in mind.
but assuming you mean registry there isn't really any advice i can give you that will help much, but i will attempt to try
there are four types of questions
1. trick questions. (in these questions there is one word that make the difference between the answers)
2. obscure questions. (shit you have never heard of)
3. questions where all the answers are correct. (these are the easiest, if you get stuck just reasses)
4. questions where all the answers are wrong. (these suck you, will get most of these at the begining of the test just to get in your head)
ABC - A, B, A, A ,C, A, B, A, A & don't forget A. If you don't have a patent airway then no matter what else you do, it won't help your patient. Go back & check it again & again if necessary.
Know your terms & know your anatomy.
If you are using the Brady edition, Use the CD that comes with the book & do ALL the questions in the workbook even if they aren't assigned. READ the WHOLE book, instructors sometimes skim chapters or skip them all together. Read them & do the questions in the workbook.
I don't remember that all the answers were necessarily right but they use several different tests. When you take your NREMT test - make sure you know infants, toddlers, adolescents & the chapter on obstetrics & child birth is more important than you think. Most people who don't pass the test didn't get high enough score on those areas.
Remember right answers don't make up for wrong ones. You have to score at least 80% (its been a while since I took it)in ALL the areas of the test. So 100% on patient packaging and 90% on trauma or wound care won't make up for a 62% on child birth or geriatric care.
When you take your practical, voice everything you are doing, talk yourself through it. The evaluators expect that. It also helps when you are testing for your instructor. That is a good time to ask questions if you aren't sure you have a good understanding of the task you are working on. There are many skills you will learn in class that you won't necessarily use on the truck but you still have to learn them. In OH we were taught E-tubes but EMTs don't DO E-tubes in the field, usually. You probably won't deliver many babies but you have to know how, otherwise you might lose 2 patients, not just one.
When I teach a class I make sure they know the objectives of the chapter. Read the objectives to the chapter and either copy the page or write them out, when you find and answer to the objective write in your notes and highlight it and you won't have any problems on the written tests. If your state gives you the evaluation forms prior to the practicals memorize them the best you can.