Free ADI Band 2 Theory Test

If you want to turn left and there's a cyclist in front of you, hold back. Wait until the cyclist has passed the junction and then turn left behind them.

Pelican crossings are signal-controlled crossings operated by pedestrians. Push-button controls change the signals. Pelican crossings have no red-and-amber stage before green. Instead, they have a flashing amber light, which means you must give way to pedestrians on the crossing, but if it's clear, you may continue.

Road humps, chicanes and narrowings are all traffic-calming measures designed to keep vehicle speeds low. They're used to protect vulnerable road users near areas such as housing estates and shopping centres.

Reflective studs are placed along the edges and between the lanes on motorways. The colour of the stud can help you identify your position on the road when visibility is reduced; for example, when it's foggy. Between the lanes, the studs are white. Red studs are used between the left-hand edge of the carriageway and the hard shoulder. Amber studs are used along the right-hand edge of the carriageway, and green studs are used where slip roads enter or leave the motorway.

A toucan crossing is designed to allow pedestrians and cyclists to cross at the same time. Look out for cyclists approaching the crossing at speed.

At a ford, the road passes through a stream at a place where the water is normally shallow. When you've gone through the water, you should test your brakes and if necessary dry them out. To do this, first check that you won't cause danger to traffic behind. Then apply a light brake pressure while moving slowly. Make sure your brakes are working properly before resuming normal driving.

You may only stop on the carriageway of a motorway
- when told to do so by the police
- when a red cross with flashing red lights shows above every lane - in a traffic jam
- in an emergency or breakdown.

A mirror with convex glass has a wide field of vision but makes it more difficult to judge the distance and speed of traffic behind. Vehicles seen in this type of mirror appear to be further away than they actually are.

This sign on the overhead gantry will be accompanied by flashing amber lights. The arrow directs you to move into the next lane. There might not be any visible signs of a problem ahead, but there might be queuing traffic or another hazard that you can't yet see.

Coloured studs are used to help you judge your position on the carriageway in poor visibility. Knowing which colour is used and where can help keep you safe. Amber studs are used between the right-hand lane and the central reservation on a motorway or dual carriageway.

In icy and snowy weather, your stopping distance will be up to 10 times further than in good, dry conditions. To reduce the risk of skidding, take extra care when braking, accelerating and changing direction.

Engines burning fossil fuels produce harmful gases. We need to be concerned about the effect this has on our environment. A catalytic converter acts like a filter, removing most of the harmful compounds from the exhaust gas.

Selecting a low gear will help the engine's resistance, known as engine braking, to control your vehicle's speed. This is especially useful when travelling downhill.

Before you start a motorway journey, make sure that your vehicle can cope with the demands of continuous high-speed travel. To reduce the risk of your vehicle breaking down, check the oil, water and tyres before setting off. If you're travelling a long way, it's also a good idea to plan your rest stops in advance.

Catalytic converters are exhaust-treatment systems that remove most of the harmful compounds from the exhaust gases. These include carbon monoxide, nitrogen oxides and hydrocarbons. The converter only deals with toxic, polluting gases; carbon dioxide is still produced.

The edge of the carriageway is often marked with a continuous white line. This stops at junctions, lay-bys, and entrances and exits from private drives. In conditions of poor visibility, such as when it's foggy, this line can help you see the edge of the road.

In a crash, the occupants of a vehicle can be thrown violently forward and then back again. The head restraint should be adjusted so that it gives maximum protection to the neck as the occupant is thrown backwards.

Ring roads are designed to keep traffic away from town centres. Unless you need to visit the town centre, you should use the ring road, as this will help to avoid congestion and reduce your journey time.

A motorway number in brackets on a blue patch means that a motorway junction will be reached by following the route indicated.

The approach to and exit from a pedestrian crossing is marked with zigzag lines. You mustn't park in this area, as it would block the view for pedestrians and traffic. Overtaking the leading vehicle on approach to a crossing is also illegal.