When you Click View button, you will open the test and view its details. You may see details of the selected test on this screen such as number of questions, time, number of times all students attempted this test, positive and negative marks, number of attempts allowed for you, expiration date, question distribution by subject and topic (middle left panel), your attempt history (middle 2nd panel), feedback given by other students etc.
Once you decide to take this test, click Take Test button.