Free ADI Band 2 Theory Test

Puffin crossings have infra-red sensors that detect when pedestrians are crossing and hold the red traffic signal until the crossing is clear. The use of a sensor means there's no flashing amber phase, as there is with a pelican crossing; the lights follow the same sequence as traffic lights.

Elderly people may misjudge how far away you are and how fast you're travelling. This may cause them to step into the road when you would expect a pedestrian to wait. They may also walk slowly and so could take a long time to cross the road.

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.

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.

Be aware that other traffic might still be clearing the junction. When the green light shows, make sure the way is clear before continuing.

On a single carriageway road, the national speed limit will apply, unless signs indicate otherwise. For a car, the limit is 60 mph unless the car is towing a trailer - in which case the limit is reduced to 50 mph.

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.

If you don't keep your tyres inflated to the recommended pressure, they may wear unevenly. Over-inflated tyres will tend to wear heavily in the centre tread area, while under-inflated tyres will tend to wear more on their outer edges. Check your tyres regularly and use a reliable gauge. Follow the manufacturer's guide for the correct tyre pressure; check and adjust the pressure when the tyres are cold.

When you park a vehicle facing uphill and on the left, turn the steering wheel to the right. If the parking brake fails, this will give the front wheels the least distance to travel before wedging against the kerb, preventing the vehicle from rolling further. It's also a good idea to leave the car in gear, or select 'P' on an automatic.

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.

Driving a vehicle with a brake defect could be dangerous and may constitute an offence. Check the brake-fluid level regularly, using the high/low markers on the reservoir. If the fluid level is too low, it could result in loss of braking efficiency.

A flashing amber light is shown at pelican crossings, but not at puffin crossings. Puffin crossings are controlled electronically and detect when pedestrians are on the crossing. The red light will remain showing to drivers until the system detects that the crossing is clear. The sequence of lights is then the same as for normal traffic lights.

You mustn't drive in a bus lane when it's in operation. If the bus-lane sign shows no times of operation, then the lane is in constant operation.

The anti-lock braking system (ABS) activates automatically when the brakes are applied. It prevents the wheels from locking, so reducing the likelihood of a skid developing. ABS doesn't remove the need for good driving practices such as anticipation and driving at the correct speed for the conditions.

Driving in neutral or with the clutch down for long periods is known as 'coasting'. If you do this on a steep downhill gradient, there will be no engine braking to help check your speed.

Road humps are there to reduce the speed of traffic. Don't accelerate between them, as their purpose is to slow traffic along the whole street. This is to protect vulnerable road users in the area.

As you would with an able-bodied person, you should prepare to slow down and stop. Don't wave them across, as other traffic may not stop.

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.

Turning the wheels to the left will ensure that if the vehicle rolls forward, it will immediately contact the kerb. The use of reverse gear will help by using the resistance of the engine to prevent the vehicle from rolling forwards should the parking brake fail.

Bringing a car smoothly and accurately to a stop is a driving skill that needs teaching and practice. Braking progressively, then easing off the brake before the car stops, saves fuel. It's also more comfortable for passengers.