If your aim to take admission in US colleges, you need to qualify SAT, a standardized test. On the basis of your score, you can apply for a particular college or university in US.
SAT-1, is a three-hour multiple choice test that assesses your reading, writing and mathematical skills etc.
SAT-2 is one hour test to evaluate your skill in a particular subject. Again it is a multiple choice test and many universities and colleges require the score of this test along with SAT-1.
There are the basic types of question that you have taught during your high school education. You can see many test formats at Internet and can practice those.