You'll save time by not having to look through all of the terms for the answer you select. In multiple choice questions, mark out the wrong choices to eliminate. Then read the statement through and see if you agree with your answer. These are clues to answers. Read the whole quetion.
Some students stop reading the question if the first answer is right.
Mark clearly those questions you got stuck on. When you finish the test, run back through and spend extra time on these. Don't change answers. This is the usual panic time and you'll tend to want to read over the whole test. Don't do that.