The HPT is made up of a Welcome screen, test instructions and 15 test items. The test instructions include 2 practice items to help you get used to the technology. The 15 test items (and 2 practice items) are film clips of real traffic situations.
You see what the driver would see and you are told what the driver wants to do. Your job is to touch the screen if and when you think it would be safe for the driver to do it. If you think it would be unsafe to take any action, do not touch the screen.
You can only see each item once, and when you have given your answer, it is locked in.
At the end of the test, a results screen appears which tells you whether you passed or failed, and gives you feedback on areas where you need to improve.