LGV - Free Test #4

When you see this sign, beware of traffic queues ahead. Check your mirrors and reduce your speed. Research shows that you make poor decisions when you're angry, so you're less likely to spot and respond safely to hazards. Be patient when you're delayed and reduce the possibility of being involved in an incident.

Always be aware of your limited vision around your vehicle, due to its size and shape. Never move off without checking along the nearside of your vehicle. You should be aware of the possibility of cyclists and motorcyclists getting trapped between your vehicle and the kerb.

Concentration will be improved by eating regular, light meals timed to fit in with your scheduled rest periods. If you don't eat at all, your blood sugar levels will drop and you'll feel tired. If you just eat snack foods, most of which are sugary or high in fat, your energy levels will peak and then drop - and eating while you're driving is a dangerous distraction.

When a warning light or device indicating a loss of brake pressure comes on, you must stop safely and get the fault put right immediately. The safety of you, your load, your passengers and all other road users is at risk.

Warn other traffic of the incident, without putting yourself or others at risk. Once the danger of further collisions is dealt with, call the emergency services. While you're waiting for them to arrive, keeping casualties or witnesses calm is important, but never offer a cigarette because of the risk of fire.

The transition from 'rear wheel lift' to 'roll-over' is more rapid on vehicles equipped with air suspension systems. Make sure you take advantage of any extra training that may be available to drivers of this type of vehicle.

To achieve maximum stability, the load should be placed to keep the centre of gravity as low as possible. To do this, heavy items should be placed close to the centre line and spread over the full length of the vehicle. Lighter items should be placed along the sides.

It's dangerous to drive a vehicle with low air pressure. To alert you to this, all vehicles are fitted with a warning light and/or buzzer. Don't move your vehicle if this warning shows or sounds.

You should use a suitable restraint and chock the wheels when another vehicle is being carried piggyback. Don't just rely on the other vehicle's parking brake.

Always allow plenty of time for your journey, in case of unforeseen problems such as punctures, breakdowns, road closures or diversions. You'll feel less stressed and less inclined to take risks if you're not under time pressure.

Where a motorway has a long or steep gradient, slow-moving large vehicles might get in the way of other traffic. To help the traffic flow, an extra lane - called a crawler lane - is sometimes found on these gradients. This helps the traffic to flow by providing the slower heavy vehicles with a dedicated lane on the left.

The motorcyclist might be turning right, changing direction or unsure of their destination. Stay behind until the rider has made a move or you're sure you can pass safely. Don't intimidate them by moving too close.

A SORN allows you to keep a vehicle off the road and untaxed. The SORN remains valid until the vehicle is taxed, sold or scrapped. If you buy a vehicle that has a SORN, the SORN will finish as soon as you buy it. You'll need to make a new SORN if you want to keep the vehicle off the road and untaxed.

Roadworks can involve complex lane layouts. Reflective green-and-yellow fluorescent studs are used to separate the lanes in a contraflow traffic system. As you approach roadworks, look for traffic signs giving you advance information, which may relate to the size or type of vehicle you're driving.

Flashing amber lights are found near schools. They warn you that children are likely to be crossing the road on their way to and from school. Drive slowly until you're clear of the area.

Spray reducers or spray-suppression equipment are attachments fitted around the wheel arches of large vehicles. They effectively trap spray thrown up from the wheels, which would otherwise reduce visibility for other road users.

A heavy vehicle will lose speed when climbing a steep hill. Changing to a lower gear will help you to maintain an appropriate speed.

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.

Vehicles that are used to carry children to and from school will be travelling at busy times of the day. Be prepared for a vehicle with this sign to make frequent stops. It might pick up or set down passengers in places other than normal bus stops.

Before overtaking, you need to make sure it's safe to carry out the manoeuvre. As part of your check, look well ahead for road junctions. You shouldn't overtake as you approach a road junction, because if a vehicle emerges, or has to wait to turn, you could risk a collision.

Concentration and good judgement are needed to be a good, safe driver. You're strongly advised not to drink any alcohol before driving. Alcohol can stay in your system for 24-48 hours, so you should also consider your intake the day and night before driving.

Tiredness can seriously affect your concentration - even to the point of falling asleep. You always need to be alert so that you can safely deal with the constantly changing environment around your vehicle.

Block' gear changing means changing up or down to the most appropriate gear without going through each gear in turn. It reduces the number of gear changes, and this can improve fuel consumption.

Just before turning, a check in the offside mirror will help you to see any cyclist or motorcyclist passing on your offside. This check may help to prevent a serious incident from developing.

The blue (auxiliary) line isn't used when connecting to a two-line system. Follow the manufacturer's instructions about what to do with this third line.

Tailgating' - travelling too close to the vehicle in front - is very dangerous, because it doesn't give you enough distance to stop safely. Leave at least a two-second gap in good conditions, and increase this to four seconds in wet weather.

During very cold weather, it's tempting to have the heating in the cab turned on full. Be aware that this may help to make you feel drowsy, especially after you've eaten a meal. Open the window slightly to let in some fresh air until it's safe for you to stop and rest.

Be careful of giving lifts to strangers; some employers actively discourage it. Allowing strangers in your cab or telling people about your load could put the security of your vehicle and load at risk, and may put you in danger.

You can legally remove your seat belt when carrying out a manoeuvre that involves reversing. Don't forget to put it back on again when you've finished.