One way examinations are described is in terms of when they are taken. The type of answer that is to be given can also describe examinations. Essay tests require you to write a long composition to demonstrate your knowledge of the subject matter. Short answer tests also require you to write an answer, but they are shorter than essay responses. Grading of the essay may include evaluation of your use of English grammar as well as evaluation of the content of the essay.
Examinations even vary by where they are taken.
It is, of course, very important to know what type of test you will be taking since breaking the rules will usually result in at least a failing grade on the test. If you are unsure what type of test will be used, or what the rules are on the test, you should ask the instructor before the test begins. Blue books contain blank pages on which you write your answers to essay tests. Scantrons are answer sheets that can be graded by a machine for objective tests. Your instructor may require that you write one or more term papers or research papers, during a course, or that you complete some other form of term project.