Hazard awareness: car theory test questions
Spotting danger early: reading the road ahead, predicting what others might do, and staying fit to drive. Practise 25 free hazard awareness questions with instant answers and explanations – no sign-up.
- 25 questions
- Instant feedback
- Highway Code references
Hazard awareness: revision notes
Hazard awareness questions test whether you can spot danger early and act before it becomes an emergency. The topic also covers things that affect your fitness to drive, such as alcohol, drugs, medicines and eyesight.
- Read the road: a centre line with longer dashes and shorter gaps warns of a hazard ahead (rule 127).
- Expect the unexpected: look for children near ice cream vans, buses and parked cars, and for unmarked junctions on country lanes (rules 146, 152 and 206).
- Don't overtake blind: never overtake near a bend, a hump bridge or the brow of a hill (rule 166).
- Alcohol and drugs: alcohol slows reactions and gives false confidence, and it can still be in your body the next morning (rules 95 and 96).
- Eyesight and health: you must be able to read a number plate from 20 metres in good daylight, and report relevant medical conditions to the DVLA (rules 90 and 92).
Tip: this topic links closely to the hazard perception part of the test. Practise asking yourself "what might happen next?" on every journey.
All hazard awareness questions and answers
Revise every question in this topic. Tap a question to see the correct answer and why.
1The broken white line in the centre of the road changes to longer lines with shorter gaps. What does this mean?
- The road is about to become one-way
- You may now overtake if it's clear
- There's a hazard ahead ✓
- The speed limit is about to change
Answer: There's a hazard ahead. When the centre line lengthens and the gaps shorten, it warns of a hazard ahead. Don't cross it unless you can see the road is clear.
Highway Code rule 127
2You're approaching an ice cream van parked at the side of a residential road. What should you do?
- Keep your speed and move to the centre of the road
- Speed up so you pass the van quickly
- Sound your horn as you pass the van
- Slow down, as children may run into the road ✓
Answer: Slow down, as children may run into the road. Children are more interested in ice cream than traffic and may run out without looking. Drive slowly and be ready to stop.
Highway Code rule 206
3A bus has stopped at a bus stop on your side of the road. What should you look out for as you pass?
- People stepping out from in front of the bus ✓
- The bus reversing away from the stop
- Speed cameras mounted on the bus shelter
- Traffic lights hidden behind the bus
Answer: People stepping out from in front of the bus. Passengers getting off a bus may cross the road in front of it, where you can't easily see them. Pass slowly and be ready to stop.
Highway Code rules 206 and 223
4Mark two answers. You're driving along a residential street lined with parked cars. Which hazards should you look out for?
- Car doors opening ✓
- Trains crossing at a level crossing
- Children running out between parked cars ✓
- Fast traffic joining from a slip road
- Lorries overtaking you on the left
Answer: Car doors opening; Children running out between parked cars. On residential streets look out for car doors opening, vehicles moving off, people stepping out and children appearing from between parked cars.
Highway Code rule 152
5Why should you slow down on the approach to bends on country roads?
- All country roads have a speed limit of 30 mph
- Bends on country roads usually have temporary traffic lights
- Speed cameras are usually placed just after sharp bends
- Bends can be sharper than they look, and hazards may be hidden ✓
Answer: Bends can be sharper than they look, and hazards may be hidden. Bends can be sharper than they appear and junctions may be partly hidden. Make sure you can stop within the distance you can see to be clear.
Highway Code rule 154
6You're driving along a country lane and reach a junction with no signs or road markings. Who has priority?
- Nobody, so approach with care ✓
- Whoever is on the wider road
- The larger of the two vehicles
- Traffic coming from the right
Answer: Nobody, so approach with care. At unmarked junctions nobody has priority. Slow down, look carefully and be prepared to give way.
Highway Code rule 146
7Some children on the pavement ahead are chatting and looking away from the road. What should you do?
- Keep your speed, as they're on the pavement
- Slow down and be ready to stop in case they step out ✓
- Flash your headlights to make them look
- Sound your horn all the way past them
Answer: Slow down and be ready to stop in case they step out. If pedestrians, especially children, are looking the other way, they may step into the road without seeing you. Try to anticipate what they might do.
Highway Code rule 146
8Amber lights are flashing below a 'School' warning sign ahead. What does this tell you?
- The school is closed for the day
- A speed camera is operating nearby
- The school zone has ended
- Children may be crossing the road ahead ✓
Answer: Children may be crossing the road ahead. A flashing amber signal below the school sign means children may be crossing. Drive very slowly until you're clear of the area.
Highway Code rule 208
9You're driving through road works. What should you concentrate on?
- Your sat nav for a quicker route
- The road workers and their machinery
- The road ahead, rather than the work going on ✓
- Overtaking the queue to get through faster
Answer: The road ahead, rather than the work going on. Looking at the works takes your attention away from the traffic. Concentrate on the road ahead and keep a safe distance.
Highway Code rule 288
10The vehicle ahead has had its right indicator flashing for a long time. You want to overtake. What should you do?
- Overtake, as the signal was probably left on
- Stay behind until its intentions are clear ✓
- Flash your headlights and pass quickly
- Sound your horn and then pass on the right
Answer: Stay behind until its intentions are clear. Don't overtake a road user who is indicating right, even if you think the signal should have been cancelled. Don't take the risk.
Highway Code rule 167
11How does alcohol affect your driving?
- It only affects you once you're over the limit
- It improves your vision at night
- It gives you false confidence and slows your reactions ✓
- It sharpens your concentration
Answer: It gives you false confidence and slows your reactions. Alcohol reduces co-ordination, slows reactions and affects your judgement of speed, distance and risk, even below the legal limit.
Highway Code rule 95
12You drank a lot of alcohol last night. Why might you be unfit to drive this morning?
- Alcohol takes time to leave your body ✓
- Eating breakfast cancels its effects
- A strong coffee will clear it
- A night's sleep removes all of it
Answer: Alcohol takes time to leave your body. You may still be unfit to drive the morning after drinking the previous evening. Only time clears alcohol from your body.
Highway Code rule 95
13In England and Wales, what is the legal limit for alcohol in your breath?
- 22 microgrammes per 100 millilitres
- 35 microgrammes per 100 millilitres ✓
- 50 microgrammes per 100 millilitres
- 80 microgrammes per 100 millilitres
Answer: 35 microgrammes per 100 millilitres. In England and Wales the breath limit is 35 microgrammes per 100 millilitres. The best advice is not to drink at all if you plan to drive.
Highway Code rule 95
14Which statement about the drink-drive limit in Scotland is correct?
- It only applies to drivers under 21
- It's higher than the limit in England and Wales
- It's the same as the limit in England and Wales
- It's lower than the limit in England and Wales ✓
Answer: It's lower than the limit in England and Wales. Scotland has lower legal alcohol limits than England and Wales. Any alcohol affects your ability to drive safely.
Highway Code rule 95
15Your doctor prescribes medicine that might make you drowsy. What should you do about driving?
- Drive only on short journeys that you know well
- Check with your doctor or pharmacist before you drive ✓
- Drive as normal but keep a window open for fresh air
- Drive as normal as long as you feel alert enough
Answer: Check with your doctor or pharmacist before you drive. You must not drive under the influence of medicine that impairs you. Always check and follow the advice you're given.
Highway Code rule 96
16In good daylight, from what distance must you be able to read a modern car number plate?
- 10 metres
- 20 metres ✓
- 30 metres
- 40 metres
Answer: 20 metres. You must be able to read a vehicle number plate from 20 metres in good daylight (20.5 metres for old-style plates).
Highway Code rule 92
17You need glasses to read a number plate from the required distance. When must you wear them?
- At all times while driving ✓
- Only in poor weather
- Only when driving at night
- Only when driving on motorways
Answer: At all times while driving. If you need glasses or contact lenses to meet the eyesight standard, you must wear them every time you drive.
Highway Code rule 92
18You develop a health condition that's likely to affect your driving. Who MUST you tell?
- The DVSA
- Your local council
- The DVLA ✓
- Your local police station
Answer: The DVLA. You must report to the Driver and Vehicle Licensing Agency (DVLA) any health condition likely to affect your driving.
Highway Code rule 90
19You approach a junction where the traffic lights aren't working. How should you treat it?
- As if you must wait one minute before going
- As if the lights were showing green
- As if traffic on the main road must give way
- As an unmarked junction, going ahead with great care ✓
Answer: As an unmarked junction, going ahead with great care. If the traffic lights aren't working, nobody has priority. Treat the junction as unmarked and proceed with great care.
Highway Code rule 176
20Why shouldn't you overtake as you approach the brow of a hill?
- You can't see far enough ahead to be sure it's safe ✓
- Overtaking uphill always uses too much fuel
- Speed limits always change at the top of hills
- Your engine may stall on the climb
Answer: You can't see far enough ahead to be sure it's safe. Don't overtake where you can't see far enough ahead, such as near a bend, a hump bridge or the brow of a hill.
Highway Code rule 166
21Queuing traffic is blocking your view of a zebra crossing ahead. What hazard should you be ready for?
- Cyclists riding along the zig-zag lines beside it
- Pedestrians crossing between the stationary vehicles ✓
- Traffic lights changing on the crossing
- Vehicles parked on the zig-zag lines
Answer: Pedestrians crossing between the stationary vehicles. When your view of a crossing is blocked, pedestrians may appear from between stationary vehicles. Take extra care.
Highway Code rule 193
22In the hazard perception test, what is a 'developing hazard'?
- Any vehicle that is parked at the side of the road ahead
- Any pedestrian walking on the pavement
- Any road sign that warns of a bend
- Something that would make you change your speed or direction ✓
Answer: Something that would make you change your speed or direction. A developing hazard needs you to take action, such as slowing down or changing direction. A parked car becomes one when it signals and starts to pull out.
GOV.UK: Theory test – hazard perception test
23You're in slow-moving traffic. Which road users may be passing you on either side?
- Tractors and farm vehicles
- Buses using the bus lane only
- Cyclists and motorcyclists ✓
- Learner drivers with an instructor
Answer: Cyclists and motorcyclists. In slow-moving traffic, be aware of cyclists and motorcyclists who may be filtering past on either side.
Highway Code rule 151
24You see mud on the road near a field entrance on a country bend. What hazard should you expect?
- A slow-moving farm vehicle pulling out ✓
- A speed camera hidden in the hedge
- A level crossing just after the bend
- Children leaving a nearby school
Answer: A slow-moving farm vehicle pulling out. On country roads be prepared for slow-moving farm vehicles and mud on the road surface, which can also reduce grip.
Highway Code rule 154
25Mark two answers. Which of these could affect your ability to drive safely?
- Having your seat correctly adjusted
- Some medicines you can buy over the counter ✓
- Wearing comfortable, flat shoes
- Feeling tired ✓
- Having your mirrors properly set
Answer: Some medicines you can buy over the counter; Feeling tired. Even over-the-counter medicines can affect your driving, and tiredness greatly increases the risk of a collision. Correct shoes, seat and mirrors help you drive safely.
Highway Code rule 91 and Annex 8
Frequently asked questions
What is a developing hazard?
A developing hazard is something that would make you change speed or direction, such as a parked car that starts to signal and pull out. A hazard that doesn't need you to act, like a car parked safely, isn't developing yet.
What eyesight standard do I need to drive?
You must be able to read a car number plate from 20 metres in good daylight, wearing glasses or contact lenses if you need them (Highway Code rule 92).
Can I drive the morning after drinking alcohol?
You may still be over the limit or unfit to drive, because alcohol takes time to leave your body (Highway Code rule 95). If you've drunk a lot, don't drive until you're sure it has cleared.
Original practice questions based on The Highway Code (Open Government Licence v3.0). Not the real test questions. MockTheory is not affiliated with or endorsed by the DVSA.
