PCV Free Theory Test

Unless the curtains are specifically designed, they must not be used to restrain the load. They should be used to protect it from the weather and provide a level of security. Most companies also use them as a mobile advertisement.

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.

When you're stationary for any length of time (for example, in a traffic jam), switch off your engine. This will cut exhaust emissions and so help to protect the environment.

Closed curtains on large empty vehicles can hold the wind. Strong side wind can blow a semi-trailer off course and, in severe cases, can blow the whole vehicle over onto its side. To reduce the risk of this happening, you should tie the curtains open.

Using the left-hand lane will make it easier for you to leave the roundabout. If you use the right-hand lane, there could be traffic on your left and in your blind spot when you reach your exit and try to move back to the left.

Large vehicles can be fitted with various types of endurance brake (retarder). Make sure you're familiar with how the system operates on the vehicle you're using. Don't risk a crash or collision through ignorance.

When you drive too close to the kerb, there's a risk that your nearside mirror could strike the head of a pedestrian. Be aware of this hazard and, if you see pedestrians close to the road, make sure you leave them enough room.

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.

Being seated properly is very important when driving long distances. A poor driving position can quickly cause fatigue. You should make sure that you can reach all the controls comfortably.

Even though there are no restrictions, make sure that you park where you won't cause an obstruction or endanger other road users.

Engaging a lower gear and using engine braking will help you to control your speed as you're going downhill. This reduces the demands on the brakes, and helps to prevent them from overheating. This will reduce the likelihood of brake fade.

Short-wheelbase vehicles will bounce more noticeably than some long-wheelbase vehicles when empty. This can affect braking efficiency and all-round control.

Caravans are relatively light but have a large surface area. This makes them vulnerable to the turbulence created by large vehicles travelling at speed. The blast of air can destabilise the caravan, causing it to snake, and in extreme cases they can be blown over.

The brushes are part of a spray-suppression system. They reduce the amount of water thrown up at the sides and rear of the vehicle. Check them regularly for security. If they become worn, make sure they're replaced.

Switch your engine off when you're stationary for some time, especially where noise and exhaust fumes may cause annoyance. This can help to protect the environment and save fuel.

Most diesel engines have glow plugs to preheat the combustion chambers, so helping the engine to start when it's cold. When the ignition is switched on, the preheat warning lamp will show and the glow-plugs will rapidly heat up. In cold weather, the starter should only be operated when the glow plugs reach operating temperature and the warning light goes out.

As a local-service bus driver, you may use the bus lane at any time. The restrictions apply to other road users, to keep the lane clear for you at peak times. Don't be tempted to speed when driving up the inside of slow-moving or stationary traffic. Be alert for pedestrians who may be trying to cross the road.

Always look into the road you're entering. If pedestrians are already crossing, be considerate and give way to them. Don't wave or signal them to hurry; they have priority here.

A toucan crossing is signal-controlled, but unlike a pelican crossing it doesn't have a flashing amber light in the sequence. Cyclists and pedestrians cross together, and cyclists are allowed to ride their bicycles over the crossing.