Safety Margins Practice Questions
About This Topic
Safety margins are the distances and time gaps that give you room to react: stopping distances in good and poor conditions, the two-second rule and how ice, rain, fog and darkness change everything. Expect several questions that ask for exact stopping and braking distances at set speeds.
What the DVSA tests here
- Typical stopping distances at 30, 50 and 70 mph — thinking distance plus braking distance
- Multiplying separation gaps in rain, ice and snow
- Adjusting speed for fog, crosswinds, hot weather and worn road surfaces
Practising this topic
You can work through 34 questions covering safety margins, with an explanation after every answer to reinforce the rule being tested. In the real car theory test the DVSA mixes all fourteen topics into one 50-question paper with a pass mark of 43, so no single subject can be skipped. Once your score settles above the pass threshold, move on to a timed mock test to check the topic holds up under exam pressure.
In the run-up to test day
Most learners find that little and often beats long cramming sessions: two or three short rounds of questions a day keep the rules fresh without wearing you out. Pair this topic with the matching chapters of the Highway Code, and use hazard perception clips to watch the same ideas play out on real roads. In the final week before your booking, switch from topic practice to full mock tests so you get used to the 57-minute time limit and to questions arriving in no particular order.