You can take a particular test only once. When you click on the "Start Test" button for any test, you will be directed to this page.
Once you have clicked on "I am ready to begin", the test starts and Embibe considers it as a valid test even if you decide not to take the test and close it without attempting any question.
The test platform on Embibe is designed exactly the same way as the real tests and it is recommended that students take the tests seriously.
If you are a RANKUP user, you will be able to take 3-4 chapter-wise tests for each chapter. However, these tests won't be the same.
Also, in RANKUP, you get detailed analysis and personalized preparation plan after each test which are not available in the free version.