Hi,
In hazard perception test you there is no limit for clicks but also you cant click unnecessarily in short space of time because lots of unnecessary responses are made in a very short space of time, or throughout the clip, a zero score will recorded for that clip.
an example, of how to identify and respond to a developing hazard, consider a parked vehicle on the side of the road. When you first see it, it is not doing anything; it is just a parked vehicle. If you were to respond to the vehicle at this point, you would not score any marks, but you would not lose any marks.
However, when you get closer to the vehicle, you notice that the car's right hand indicator starts to flash. The indicator would lead you to believe that the driver of the vehicle has an intention of moving away, therefore the hazard is now developing and a response at this point would score marks. The indicator coming on is a sign that the parked vehicle has changed its status from a potential hazard into a developing hazard.
When you get closer to the vehicle, you will probably see the vehicle start to move away from the side of the road; another response should be made at this point. Different clips in the test will have various signs to indicate that the hazard is changing its status and is now starting to develop.
Hope this will help.
For more information visit:
http://www.theory-tes...d_perception_info.asp