WA CTT Car Theory Test cheat sheet

Keep left: drive on the left side of the road unless overtaking, turning right, or avoiding an obstruction.

Default urban speed limit is 50 km/h unless signs show otherwise; rural roads are generally 100 km/h and highways up to 110 km/h where signed.

Speed limits are maximums for ideal conditions; drivers must slow below the posted limit for rain, dark, gravel, or heavy traffic.

Learner drivers in WA must display L plates, be supervised by a fully licensed driver, and log a minimum of 50 supervised driving hours including 5 at night.

Novice drivers progress through red P plates (first 6 months) and green P plates; P-platers must display plates and observe a zero blood alcohol limit.

A blood alcohol concentration of 0.05 is the general legal limit for full licence holders; 0.00 applies to novices, learners, and drivers of heavy or public passenger vehicles.

Give way rules: at an uncontrolled intersection give way to vehicles on your right; turning vehicles give way to through traffic and to pedestrians crossing.

Mobile phone use while driving is illegal unless hands-free and mounted; full licence holders may not touch a phone at all while the vehicle is moving.

The safe following gap is at least 2 seconds in good conditions, 3 seconds in rain or at night, and 4 seconds on gravel or in poor visibility.

To measure a following gap, watch the vehicle ahead pass a fixed object and count seconds until your own vehicle reaches it.

Stopping distance equals reaction distance plus braking distance; wet roads can double braking distance and gravel can triple it.

Scan 12 or more seconds ahead and check mirrors every 5 to 8 seconds to detect hazards early.

Use the hazard perception sequence: identify, predict, decide, and act; a hazard is any situation requiring a change of speed or direction.

Fatigue is a major crash cause: plan a 15-minute break every 2 hours and stop immediately if you experience microsleeps or yawning.

Headlights must be used from sunset to sunrise, in rain, fog, or when visibility is reduced; high beam must be dipped for oncoming traffic within 200 metres.

During a skid, ease off the accelerator and steer in the direction you want the front of the vehicle to go; avoid harsh braking.

Regulatory signs are usually circular with a red border and impose a legal requirement, such as STOP, speed limits, or no entry.

Warning signs are usually yellow diamonds with black symbols in WA and alert drivers to hazards ahead.

A STOP sign requires a complete stop at the stop line and giving way; a give way sign requires yielding without necessarily stopping.

A solid white centre line means no crossing or overtaking; a broken white line may be crossed to overtake when safe.

Double solid lines cannot be crossed by either direction; a solid line on your side means you must not cross it.

Edge lines mark the outer limits of the carriageway; a solid edge line may be crossed only to enter or leave the road or driveway.

A red traffic light means stop at the stop line; a flashing yellow signal at a pedestrian crossing means give way to pedestrians.

Railway crossing signs and boom gates require stopping when lights flash or gates lower; never enter a crossing until the path is clear.

Seatbelts must be worn by all occupants; children under 7 must use an approved child restraint appropriate to their size and age.

A rear-facing child restraint must never be placed in front of an active airbag; the safest position is the rear centre seat.

Tyres must have at least 1.5 mm tread depth across the main grooves and be free of cuts, bulges, or exposed cords.

Tyre pressures should be checked monthly and when cold; under-inflation increases rolling resistance, heat, and blowout risk.

Headlights, brake lights, indicators, and horn must be functional; a vehicle must be roadworthy to be driven on public roads.

Loads must be secure and not project dangerously; any load extending more than 1.2 metres behind must display a warning flag or light.

A vehicle must have a current registration and third-party insurance; driving unregistered or uninsured is an offence.

Check mirrors and blind spots with a head check before changing lanes; adjust mirrors so the side of your vehicle is just visible.

Pass cyclists with at least 1 metre clearance at speeds up to 60 km/h and at least 1.5 metres above 60 km/h.

At pedestrian crossings, give way to pedestrians already on or stepping onto the crossing; do not overtake a vehicle stopped at a crossing.

When a bus is indicating to leave a stop, give way and allow it to re-enter the traffic stream.

In country WA, watch for kangaroos and livestock at dawn and dusk; reduce speed and scan the roadside verges.

On gravel roads, reduce speed, increase following distance to at least 4 seconds, and avoid sudden steering or braking.

In heavy rain, avoid flooded roads; if water covers the road, turn around rather than risk being swept away.

Emergency vehicles with flashing lights and sirens have priority; move left, slow down, and stop if necessary to let them pass.

At a roundabout, give way to vehicles already on the roundabout; indicate left when exiting and right when turning right.