Free ADI Band 2 Theory Test

A green flashing beacon on a vehicle means the driver or passenger is a doctor on an emergency call. Give way to them if it's safe to do so. Be aware that the vehicle may be travelling quickly.

Although cars are the least likely to be affected, side winds can affect anyone, especially
- after overtaking a large vehicle
- when passing gaps between hedges or buildings
- on exposed sections of road.

Before you enter a roundabout, you normally give way to any traffic approaching from your immediate right. In a few cases, however, traffic on the roundabout has to give way to traffic entering. Look out for 'give way' signs, road markings and traffic lights on the roundabout.

Some bus lanes only operate during peak hours and other vehicles may use them outside these hours. Make sure you check the sign for the hours of operation before driving in a bus lane. Where no hours are shown, the bus lane operates 24 hours a day.

Over-inflated tyres will cause excessive wear along the centre of the tread. Check your tyre pressures on a regular basis, and when the tyres are cold.

A spongy footbrake normally indicates that air has entered the hydraulic system. This may be caused by allowing the fluid level to fall too far, a fluid leak, or moisture ingress. If the brakes feel spongy or slack, have them checked by a qualified mechanic. Test your brakes before the start of every journey. Check the brake fluid regularly but don't overfill it.

The lane under a gantry signal showing a red cross with flashing red lights is closed to traffic. You shouldn't proceed past that point in that lane. Should other lanes be open, move to a different lane and proceed with care. If red signals are shown above all lanes, then all lanes are closed: you must stop and wait for the lights to change or until you're directed to move.

Time your driving and adjust your speed so that you don't have to use your brakes while you're cornering. Braking on an icy or snow-covered bend is potentially dangerous. The cornering force will continue to pull you outwards and the tyres will have very little grip. This could cause your vehicle to skid.

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.

'Coasting' is the term used when the clutch is held down or the gear lever is in neutral and the vehicle is allowed to freewheel. This reduces the driver's control of the vehicle because the engine isn't connected to the driven wheels. This removes the assistance of engine braking and the stability of a powered drive train.

The steady amber light will be followed by twin flashing red lights, which mean you must stop. An alarm will also sound to alert you to the fact that a train is approaching.

When you've driven through a ford or flood, your brakes may be soaking wet. Water can reduce your brakes' efficiency, so check that they're working properly before you build up speed again. Lightly applying the brakes while driving slowly will help them to dry. Before you do this, remember to check your mirrors and consider what's behind you.

If you see a vehicle with a flashing green light, allow it to pass when you can do so safely; it will be a doctor on an emergency call. Someone's life could depend on the driver making good progress through the traffic.

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.

The sign warning of loose chippings is often accompanied by a plate showing an advisory maximum speed. Stone chippings thrown up by tyres can damage vehicles, and pedestrians, cyclists and motorcyclists are more vulnerable. The loose surface will increase your vehicle's stopping distance and there's an additional risk of skidding.

This sign tells you that all lanes continue through the junction. Traffic leaving at the junction does so by using a slip road. There will normally be countdown markers before the slip road.

A long white line with short gaps means that you're approaching a hazard. Don't cross the line unless you really need to. If you do need to cross the line, make sure that the road ahead is clear before doing so.

Box junctions are designed to keep junctions clear by preventing vehicles from stopping in the path of crossing traffic. A pupil should be taught not to enter the yellow-box area if their exit road isn't clear. The only exception is when a driver wants to turn right but is prevented from doing so by oncoming traffic.

Try not to panic if a tyre bursts while you're driving. Take your foot off the accelerator and avoid braking suddenly. Try to steer a straight course while holding the wheel firmly.

Slow-moving vehicles, such as a salt spreader or breakdown vehicle, may use a flashing amber beacon. On unrestricted dual carriageways, vehicles with a maximum speed of 25 mph (40 km/h) or less must use a flashing amber beacon.