Most hazard perception clips include just one scoring clip.
Between 5 and 1 points are awarded for a scoring hazard, depending on how quickly after the hazard become apparent that you touch the screen to indicate you've seen the hazard.
Each time you touch the screen a small red flag will appear along the bottom of the app's screen.
After you've seen the whole clip you are given the option to review it and during this process the timeline shows the 5-1 scoring region and red flags corresponding to when you touched the screen so you can see where you did and should have touched to acknowledge the hazard.
Though you won't be penalised for touching the screen at other times, be aware that (as in the real test) touching the screen rhythmically or randomly is likely to trigger the cheat detection system which will score you 0 points.
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