LGV - Free Test #5

Lack of oil could cause the engine to seize, and this could cause sudden and unexpected loss of control. You could break down in a dangerous position and put yourself and other road users at risk.

Plan well ahead before overtaking. Be aware that a speed limiter may cause you difficulties when overtaking another vehicle, particularly when climbing a hill.

If you see a contraflow sign, there'll also be markings on the road to indicate the bus lane. Don't use this lane for parking or overtaking.

A short-wheelbase empty vehicle will bounce more noticeably than some long-wheelbase vehicles. This can affect braking efficiency and all-round control. Don't be tempted to push this type of vehicle into bends or corners simply because the vehicle appears to be easier to drive.

If your vehicle breaks down in a tunnel, it could present a danger to other traffic. First, switch on your hazard warning lights. If there are passengers in your vehicle, take them to the nearest exit point. You should then call for help from an emergency telephone. Don't rely on being found by the police or being seen by a CCTV camera. The longer a vehicle stays in an exposed position, the more danger it poses to other traffic.

When braking a vehicle carrying a liquid load, it's important to apply even pressure on the brake pedal. Don't relax the pedal pressure until the vehicle has stopped. Secure the vehicle with the parking brake before releasing the footbrake; this will minimise the risk of unintentional movement of the vehicle caused by 'surge' from the liquid load.

Faulty power steering will make your steering wheel very difficult or almost impossible to turn. Continuing to drive could cause danger to you and other road users. You should park safely and get help.

The term 'crawler lane' doesn't mean the lane is only for extremely slow vehicles. It's advising you of an extra lane on the left. Crawler lanes are usually built on sections of road where the length of the gradient is such that some large vehicles will be slowed to the point where they become a hazard for other road users.

If you don't give your name and address at the time of an incident, report it to the police as soon as you can, or in any case within 24 hours. If any other person is injured and you don't produce your insurance certificate to the police at the time of the incident, or to any other person who has reasonable grounds to request it, you must also

• report the incident to the police as soon as possible, or in any case within 24 hours
• produce your insurance certificate to the police either when reporting the incident or within seven days (five days in Northern Ireland) at any police station.

You must check the nearside mirror during and after overtaking a motorcyclist. Make sure that the rider is still in control and that your vehicle's draught hasn't caused them to lose their balance.

Prompt treatment can help to deal with shock. Warning signs to look for include rapid pulse, sweating, pale grey skin, and rapid shallow breathing. While waiting for help to arrive, keep the casualty warm and comfortable, and speak reassuringly to them.

Air suspension reduces the pounding of the vehicle on an uneven road surface. This, in turn, reduces the vibrations transmitted to buildings and underground services along the route.

When driving large vehicles, windscreen pillars and large mirrors can easily create blind spots as you look left and right at junctions. Altering your body position slightly while looking into the new road can give you an improved view of the traffic. If in doubt, look again and reassess the situation. Don't take chances.

If a height isn't shown on the bridge, the headroom (in the UK) will be at least 5 metres (16 feet 6 inches).

White boxes allow you to unload at any time, but during the day the length of stay is restricted. You should check nearby signs for the specific times. At other times, when it's not so busy, there may not be any restrictions on parking.

If you're travelling on a motorway and your view ahead is poor, then you should reduce your speed. Leave at least four seconds between your vehicle and the one in front, and make sure that others can see you by using your dipped headlights.

Modern tankers are fitted with baffle plates inside the tank compartment. These help to minimise the movement of liquids and, therefore, reduce the 'wave effect'.

Alcohol can take a long time to leave the body. You may feel all right to drive, but its effect will last for many hours.

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.

The longer top deck needs a wider turning circle than the cab below it. To avoid hitting lampposts, telegraph poles, etc, you must allow for this overhang when turning.

Don't hurry elderly people across the road by getting too close to them or revving the engine. Be aware that they might take longer to cross. They might also have hearing difficulties and not hear you approaching.

Be aware of, and obey, all speed limits. On a motorway, any lorry that's articulated, towing a trailer, or over 7.5 tonnes mustn't exceed 60 mph (96 km/h).

If you want to keep a vehicle untaxed and off the public road, you must make a SORN. It's an offence not to do so. When you've made a SORN, you won't have to pay vehicle tax, but you also won't be able to use the vehicle on the road. The SORN remains valid until your vehicle is taxed, sold, scrapped or exported.

While you're using a phone, your attention will be divided between the call and the road. This means you're unable to take in all that's happening around your vehicle. You need to be concentrating on your driving all of the time, and especially when dealing with a hazard.

The lighter the vehicle, the more likely it is to be affected by the buffeting from your vehicle in windy weather. Give motorcyclists and cyclists extra room when you overtake them, as your vehicle's draught can easily upset their control and balance.

Sulphur produces acidic gases. Diesel fuels with lower sulphur content have been produced to reduce exhaust emissions that harm both people and the environment.

It's an offence to leave your vehicle unattended at any time without applying the parking brake.

If you attempt to move a casualty who has a spinal injury, it could cause further damage. Make sure an ambulance has been called for and talk to the casualty to keep them calm.