In this free LGV theory test you have 50 questions to answer, each question has four possible answers, just choose the one you think is correct.
You have 57 minutes to complete the test. (The full length Pro version has 100 questions in 115 minutes).
The clock will appear in the bottom right hand corner of your screen.
You need to score at least 43 to pass. Good luck!
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#1. What does this motorway sign mean?
Warning lights show when there’s danger ahead. This includes – lane closures – incidents – fog – icy roads.
#2. What does the R stand for on this sign?*
Ring roads are designed to relieve congestion in towns and city centres. They’re often the best route to take if you’re travelling through an unfamiliar area.
#3. You're driving a long vehicle on a two-lane road. What should you do if you want to turn left into a narrow side road?
When you’re driving a long vehicle, you’ll often need to straddle lanes to turn into narrow side roads. When you do this, watch out for smaller vehicles, especially motorcycles and cycles trying to squeeze past on your inside.
#4. What does this sign mean?
As well as a height restriction, the tunnel may have a restriction on the available width of headroom for high vehicles. The advance warning gives you the opportunity to find another route if your vehicle is too high or wide to drive through the tunnel.
#5. During your working day, you change to another vehicle with the same type of tachograph. How should you keep your tachograph record up-to-date?
If you change vehicles during the working day, you should take your chart with you and use it in the next vehicle. This isn’t always possible, however, as charts produced by different manufacturers may not be interchangeable. In this case, you should use another chart, making sure that all the information for the day is recorded.
#6. What does this sign warn of?
If you’re driving a high vehicle, make sure that there’s enough headroom available for you to go through the tunnel. There may be additional signs showing height and width restrictions.
#7. Your vehicle has collided with a railway bridge. What information must you give the railway authority when you telephone them?
The railway authority needs to know immediately if one of their bridges has been hit. You’ll need to tell them the number of the bridge so they can identify it. The railway authority will then take action to prevent railway passengers from being put at risk.
#8. A bus has stopped at a bus stop ahead of you. What should you do if its right-hand indicator is flashing?
If a bus is signalling to move off, give it priority as long as it’s safe to do so. Look for pedestrians who have left the bus and may be trying to cross the road.
#9. Where would you see this sign?*
This sign will be used where the road narrows, often as a result of traffic calming measures. When you see this you should give way to oncoming traffic.
#10. An enforcement officer keeps one of your tachograph charts. Who should sign the back of the replacement chart?
When an enforcement officer keeps a record chart, the driver should ask the officer to sign the back of the replacement chart. They’ll need to give their name, telephone number and the number of charts they’ve kept. The replacement chart must be used to continue the journey. You should always carry more blank charts than you think you’ll need.
#11. You're driving a long vehicle. What should you do when you want to turn right at a painted mini-roundabout?
When turning at a mini-roundabout, it’s unlikely that you’ll be able to avoid going over the marked area. You should, however, avoid going over the roundabout where possible.
#12. You're driving on a motorway and you see this sign. What does it mean?
Look out for variable-message warning signs telling you about – lane closures – speed limits – hazards. When you’re clear of the restriction, you’ll see a sign telling you that it has ended.
#13. You've been stopped at a roadside check. What would staff from the environmental health department be checking?
Local-authority environmental health departments check vehicles’ exhaust emissions. They have the power to prosecute the driver and the operator, as do enforcement bodies such as DVSA.
#14. What does this sign mean?
It’s essential to know the height of your vehicle before setting off. This should be clearly marked, usually in the cab, and visible from the driving position. Look out for restrictions that you may not have seen on a map – they may be temporary.
#15. Where can you park large vehicles at night without needing to use parking lights?
Off-road lorry and coach parks are often well lit and patrolled by police or security firms. Never leave your vehicle unlit on a public road or in a lay-by after dark.
#16. What do bells hanging across the road warn drivers of?
If your vehicle touches bells suspended over the road, they’ll obviously ring. This will warn you that your vehicle exceeds the safe travelling height beneath electrified overhead cables ahead. You must stop immediately and either find another route or take advice.
#17. What type of road surface will increase your stopping distance by up to ten times?
To prevent your wheels from locking, you’ll need to brake very gently on ice. Give yourself as much room and time as possible to stop. If your front wheels lock, you can’t steer, and that will mean you can’t avoid any obstacle in your path.
#18. By how much can your stopping distance increase in icy weather?
It’s vital that you give yourself enough separation distance when driving on icy roads – ten times as much as in normal conditions. You should brake gently to reduce the risk of losing control.
#19. You're driving in wet conditions. What should you try to do before braking?
If you need to brake when the road surface is wet, do so while your vehicle is travelling in a straight line. This will reduce the risk of skidding. As a professional driver, you should routinely brake in good time, so that you don’t brake and change direction at the same time.
#20. What's the most likely reason for a diesel-engined vehicle running erratically in very cold weather?
If diesel fuel becomes very cold, it can partially solidify. Additives are used by the fuel companies to try to prevent this. Any solidifying (waxing) of the fuel can prevent it from flowing properly and cause the engine to run erratically or even stop.
#21. When will the vehicle you are driving be at its most stable?*
A vehicle is most stable when travelling in a straight line under gentle acceleration. Sudden acceleration, steering or braking can cause loss of control. For maximum control and the comfort and safety of your passengers, keep your driving as smooth as possible.
#22. You're driving a lorry at night. What can you do to help yourself stay alert?
Make sure you have enough rest before you start a night shift. Driving at night can be tiring and you must be able to stay alert for the whole of your shift. Making sure that there’s enough fresh air in the cab can help you to stay alert. Stale, warm air can dull your senses and cause drowsiness.
#23. Who must you tell when your vehicle collides with a bridge?
Hitting a bridge with your vehicle can have serious consequences for road and rail traffic. You must tell the police about the incident immediately. If the bridge is a railway bridge, call the railway authority as well as the police to report the incident.
#24. What should be your main concern as you approach this sign?
At hump bridges, there’s a risk of long vehicles grounding. If you aren’t sure whether the floor of your vehicle will clear the bridge, find another route.
#25. Your vehicle is more than 3 metres (9 feet 10 inches) high. Where is this information displayed?
It’s a legal requirement that information about a vehicle’s height can be seen by the driver from their seat. It’s important to know the height of your vehicle so that you can avoid any height restrictions on your route.
#26. What's the maximum speed allowed for a vehicle towing a trailer on a motorway?
Vehicles towing caravans or trailers on motorways are limited in two ways – the maximum speed is 60 mph – on motorways with more than two lanes, towing vehicles aren’t allowed in the outside lane, unless other lanes are closed.
#27. Where must the repair of a speed limiter be carried out?
Speed limiters may only be repaired by authorised speed-limiter centres. They’ll ensure that all the connections are sealed and that the system is tamperproof.
#28. What should you consider when planning a route for your journey?
You should plan your route to avoid vehicle width, height and weight restrictions that would affect your vehicle and load. Planning to avoid busy times can also reduce journey times and fuel costs.
#29. What's the minimum height of an unmarked bridge?
If a height isn’t shown on the bridge, the headroom (in the UK) will be at least 5 metres (16 feet 6 inches).
#30. Where can the axle weight limits be found?
Individual axle weights are shown on the vehicle plate. This can be found in a prominent place on both the vehicle and trailer.
#31. What can happen to drivers who break EU tachograph regulations?
The driver must take responsibility and follow the drivers’ hours and tachograph rules. Failure to do so can result in legal action and penalties – such as a fine.
#32. What does this sign mean?
Always be aware of the height of the vehicle you’re driving, particularly if you drive different vehicles. If you use a sat-nav, it may show you the height and weight limits on UK roads.
#33. What does this sign mean?
You need to know the length of your vehicle as well as its weight, height and width. Places where the length of your vehicle may be relevant are:
- road tunnels
- level crossings
- ferries
- bridges.
#34. The height of your vehicle is 4.2 metres (14 feet). What should you do as you approach this bridge?
The headroom under bridges in the UK is at least 5 metres (16 feet 6 inches) unless marked otherwise. However, this might refer only to the highest point of an arch.
If your vehicle hits a bridge, you must report the incident to the police. If a railway bridge is involved, you must also report it to the railway authority.
#35. What period of time makes up a driver's week?
A driver’s week is defined as a period from 00.00 hours on Monday to 24.00 hours the following Sunday.
#36. You're driving at the legal speed limit. What should you do if a vehicle comes up quickly behind, flashing its headlights?
Don’t try to enforce the speed limit by blocking another vehicle’s progress. This is likely to cause the other driver to become more frustrated. Slow down or move over when it’s safe and allow the other vehicle to pass.
#37. How can you reduce the likelihood of theft of your load when leaving your vehicle overnight?
Theft of loads from commercial vehicles is a serious problem. You should take steps to safeguard your load when leaving the vehicle overnight. Simply parking with the rear doors close to another vehicle or a wall can act as an effective deterrent to thieves.
#38. You're often involved in the carrying of high-value goods. What security measures can you adopt?
When carrying high-value goods, you can become a target for thieves. Avoid developing a set routine or pattern. Vary your routes whenever possible to make it difficult for thieves to predict when and where your cargo can be intercepted.
#39. What does this sign mean?
If you see this sign, be aware that there’s a danger of grounding. This can happen where there’s a pronounced bump in the road, such as at a level crossing or a hump bridge.
#40. You take some cough medicine given to you by a friend. What should you do before driving?
There is always a risk that any medicine could affect your ability to drive. Always read the information supplied with it to ensure that you are safe before getting behind the wheel.
#41. What would staff from HM Revenue and Customs (HMRC) be looking for at a roadside check?
HMRC can check the type of fuel you’re using, and the type and legality of your load. Red diesel is dyed gas oil with a lower tax than regular diesel. It can only be used in agricultural and construction vehicles (such as tractors). Red diesel mustn’t be used in freight transport.
#42. What should you check when you've just overtaken a motorcyclist on a motorway?
When overtaking with a long vehicle, it’s very important to be aware of the position of the road user you’re passing. Check the nearside mirror to make sure you’ve passed safely before returning to the left. Be especially careful when overtaking motorcyclists, as they may be affected by the draught from your vehicle.
#43. What does this sign mean?*
The road is about to narrow on both sides, you need to be more aware of any overtaking or oncoming traffic.
#44. When should your trailer be fitted with a kingpin or drawbar lock?
A kingpin or drawbar lock is a visible and effective deterrent to thieves wishing to steal an unattended trailer.
#45. In which of these places might there be a restriction on vehicles over a certain length?
Look out for restrictions on long vehicles. Length restrictions are found where there isn’t much room to turn (for example, in a tunnel) or where there’s a risk of grounding.
#46. When should you allow for the effects of a speed limiter?
Forward planning is important whenever you consider overtaking another road user. You should carefully assess the speed of the vehicle you intend to overtake. Remember that your vehicle’s speed is limited and this could considerably increase the distance and time needed to complete the manoeuvre safely.
#47. When must you take extra care if you're driving a vehicle more than 3.0 metres (10 feet) high?
You must take care when approaching any hazard where height is limited. Know the height of your vehicle and what you can drive under safely. If you aren’t sure that it’s safe, take another route.
#48. Before starting driving, which of the following should you complete on the centre field of your tachograph chart?
Before starting your journey, you must record a number of items on your tachograph chart. One of these is where the journey begins.
#49. What does this sign mean?
You must always be aware of the size of your vehicle. Look out for road signs that show a width restriction. There should be an indication of this at the entrance to the road. Don’t get into a situation where you have to reverse out of a narrow road because you haven’t seen a sign.
#50. You're driving a large vehicle on a narrow road with passing places. What will you need to be most aware of?
If your vehicle is too long to fit into a passing place, you may need to wait opposite one. This will allow a following or approaching driver to pass. When you use this type of road, you need to plan and look well ahead to avoid meeting another road user at an inappropriate place.