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WA CTT Car Theory Test study materials
WA CTT Car Theory Test study resources

WA CTT Car Theory Test practice questions

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Question 1Road rules and traffic law

What is the default speed limit on roads in built-up areas in Western Australia unless signs show otherwise?

  1. 60 km/h
  2. 80 km/h
  3. 40 km/h
  4. 50 km/h Correct answer.

Explanation

In Western Australia, the default speed limit on roads in built-up areas is 50 km/h when no sign indicates a different limit. Drivers must always obey posted signs, which may set a lower or higher limit. Driving above the default limit is an offence.

Question 2Road rules and traffic law

At an intersection with a stop sign, what must a driver do before entering the intersection?

  1. Sound the horn and continue through
  2. Stop only if another vehicle is approaching
  3. Slow down and proceed if the road looks clear
  4. Come to a complete stop and give way to all traffic Correct answer.

Explanation

A stop sign requires a complete halt at the stop line or, if none, at the edge of the intersection. The driver must then give way to vehicles already in or approaching the intersection before moving off. Rolling slowly past a stop sign is a traffic offence.

Question 3Road rules and traffic law

When are you permitted to use a mobile phone held in your hand while driving in Western Australia?

  1. When driving slowly in traffic
  2. Only when parked safely with the engine off Correct answer.
  3. When making or receiving a call
  4. When stopped at a red light

Explanation

Hand-held mobile phone use is prohibited while driving, including when the vehicle is stationary in traffic or at lights. A phone may only be handled when the vehicle is legally parked and out of the traffic flow. Learner and provisional drivers face additional restrictions on any phone use.

Question 4Road rules and traffic law

What does a solid white line in the centre of a road generally mean?

  1. Overtaking is permitted when safe
  2. You must not cross it to overtake Correct answer.
  3. You may cross it to turn into a driveway
  4. You must drive to the left of the line at all times

Explanation

A solid centre line indicates that crossing to overtake is not permitted because visibility or road conditions make it unsafe. Drivers may still cross such a line to enter or leave a property or side road where it is legal and safe. The line is a warning of restricted sight distance.

Question 5Road rules and traffic law

At an unmarked intersection where two vehicles arrive at the same time on roads of equal status, which vehicle must give way?

  1. The larger vehicle
  2. The vehicle on the left
  3. The vehicle travelling faster
  4. The vehicle on the right Correct answer.

Explanation

Where no signs or lines control an intersection, the give-way-to-the-right rule applies. A driver must give way to any vehicle approaching from the right at an equal-status intersection. This rule prevents collisions when two vehicles arrive simultaneously.

Question 6Road rules and traffic law

What is the maximum blood alcohol concentration permitted for a driver holding a learner or provisional licence in Western Australia?

  1. 0.02
  2. 0.00 Correct answer.
  3. 0.08
  4. 0.05

Explanation

Learner and provisional drivers must have a zero blood alcohol concentration at all times while driving. Any alcohol in the system is an offence for these novice drivers, regardless of how little was consumed. Full licence holders are subject to a lower general limit but novices must remain at zero.

Question 7Road rules and traffic law

When must you use your vehicle's headlights?

  1. Only when other vehicles are present
  2. Only on unlit rural roads
  3. Between sunset and sunrise and in poor visibility Correct answer.
  4. Only when it is raining heavily

Explanation

Headlights must be used from sunset to sunrise and whenever visibility is seriously reduced by weather such as rain, fog or smoke. They help you see and, importantly, help others see you. Using them only sometimes leaves you hard to detect.

Question 8Road rules and traffic law

What does a yellow traffic light mean?

  1. Give way to traffic on the right
  2. Speed up to clear the intersection
  3. Stop, unless it is unsafe to do so Correct answer.
  4. Proceed with caution as for a green light

Explanation

A yellow or amber light warns that the signal is about to turn red, and drivers must stop unless stopping suddenly would be unsafe. Accelerating to beat the light is dangerous and illegal. The rule exists to clear the intersection safely before cross traffic moves.

Question 9Road rules and traffic law

A driver approaches a pedestrian crossing where a pedestrian is waiting to cross. What is the driver's obligation?

  1. Give way to the pedestrian at the crossing Correct answer.
  2. Continue if the pedestrian has not stepped onto the road
  3. Sound the horn to warn the pedestrian
  4. Pass the pedestrian only if there is room on the right

Explanation

Drivers must give way to pedestrians at marked crossings, including those waiting to cross. The obligation exists to protect vulnerable road users and to make crossings predictable. Failing to give way at a pedestrian crossing is an offence.

Question 10Road rules and traffic law

You are driving and an emergency vehicle approaches from behind with flashing blue lights and a siren. What should you do?

  1. Brake hard immediately in your lane
  2. Maintain your speed and lane position
  3. Move as far left as is safe and allow it to pass Correct answer.
  4. Accelerate to stay ahead of it

Explanation

When an emergency vehicle is responding with lights and siren, drivers should move left where safe and let it pass. Sudden braking can cause a rear-end crash, so the move should be smooth and controlled. Blocking an emergency vehicle can delay urgent assistance.

Question 11Road rules and traffic law

How far before turning must you signal your intention to turn?

  1. At least 30 metres Correct answer.
  2. At least 100 metres
  3. At least 5 metres
  4. Only as you begin the turn

Explanation

Drivers must signal for long enough to give other road users clear warning, generally at least 30 metres before the turn. On higher-speed roads more warning may be needed. Signalling only as you turn gives others no time to react.

Question 12Road rules and traffic law

When may you legally drive in a bus lane during its operating hours?

  1. When no bus is visible
  2. When you are turning left within 100 metres Correct answer.
  3. When traffic in the general lane is congested
  4. When you are running late

Explanation

Bus lanes are reserved for buses and permitted vehicles during their operating hours, but other drivers may enter briefly to turn left within a short distance of the intersection. This allows safe turning without obstructing buses. Driving in the lane for general travel is an offence.

Question 13Road rules and traffic law

A school zone sign shows a 40 km/h limit during certain hours. When does the lower limit apply?

  1. During the times shown on the sign Correct answer.
  2. Only when children are visible
  3. At all times of day
  4. Only on school days during term

Explanation

School zone speed limits apply during the times displayed on the sign, which are usually school start and finish periods. Drivers must slow to the posted limit during those hours whether or not children are visible. Outside the shown times the normal road limit resumes.

Question 14Road rules and traffic law

You are driving on a multi-lane road and wish to change lanes. What must you do?

  1. Change lanes only when the road is completely empty
  2. Signal and change lanes, expecting others to make room
  3. Check mirrors and blind spot, signal, and give way to traffic in the new lane Correct answer.
  4. Change lanes without signalling if the gap is large

Explanation

Before changing lanes a driver must check mirrors and the blind spot, signal in good time, and give way to any vehicle already in the target lane. Signalling does not create a right to move across. The manoeuvre must be safe and predictable for surrounding traffic.

Question 15Road rules and traffic law

What is the rule about following distance at night or in poor weather?

  1. Keep the same distance as in fine daytime conditions
  2. Increase the gap to allow for longer stopping distances Correct answer.
  3. Follow closer to use the lead vehicle's lights
  4. Drive with high beam on at all times

Explanation

Stopping distances increase at night and in wet or poor-visibility conditions, so a larger following gap is required. A useful guide is to maintain at least a three-second gap in good conditions and more when conditions worsen. Tailgating reduces the time available to react.

Question 16Road rules and traffic law

When may you use a handheld device to pay at a drive-through in your vehicle?

  1. Only if a passenger hands you the device
  2. Whenever the vehicle is moving slowly
  3. Never, because the engine is running
  4. Only when the vehicle is stationary and in park or neutral with the handbrake applied Correct answer.

Explanation

A phone or card payment may be handled at a drive-through only when the vehicle is safely stationary, such as in park or neutral with the handbrake on. Handling a device while the vehicle is moving or in gear is unsafe and unlawful. The aim is to keep attention on controlling the vehicle.

Question 17Road rules and traffic law

A driver is turning right at an intersection with a green circle signal but no green arrow. What must the driver do?

  1. Turn only after the light turns yellow
  2. Wait for a green arrow before turning
  3. Proceed immediately because the light is green
  4. Give way to oncoming traffic before turning Correct answer.

Explanation

A green circle permits movement but does not give right-turning traffic priority over oncoming vehicles. The driver must give way to oncoming traffic and to pedestrians before completing the turn. A green arrow would provide a protected turn.

Question 18Road rules and traffic law

What does a broken white line between lanes on a multi-lane road indicate?

  1. Lane changes are permitted when safe Correct answer.
  2. Lanes must not be crossed
  3. Overtaking is prohibited
  4. The lane is reserved for buses

Explanation

A broken white line separates lanes travelling in the same direction and may be crossed when it is safe to do so. Drivers must still signal and give way before changing lanes. Solid lines, by contrast, restrict crossing.

Question 19Road rules and traffic law

You are involved in a crash where another person is injured. Which action is required by law?

  1. Move the injured person immediately
  2. Drive on if the damage is minor
  3. Report the crash to police and exchange details Correct answer.
  4. Leave your details only if asked

Explanation

When a crash causes injury, the driver must stop, render assistance, exchange details and report the crash to police. Failing to stop or report is a serious offence. Injured people should not be moved unless there is immediate danger.

Question 20Road rules and traffic law

A driver is approaching a railway level crossing with flashing red lights and a lowered boom gate. What must the driver do?

  1. Drive around the boom gate if it is only partly lowered
  2. Proceed if no train is visible
  3. Stop and wait until the lights stop flashing and the boom rises Correct answer.
  4. Stop only if a train is approaching

Explanation

Flashing red lights and a lowered boom mean a train is approaching, and drivers must stop and remain stopped until the signals clear and the boom is fully raised. Driving around a boom gate is extremely dangerous. Trains cannot stop quickly, so the crossing must be kept clear.

Question 21Road rules and traffic law

What is the minimum age at which a person may obtain a learner driver licence in Western Australia?

  1. 15 years
  2. 18 years
  3. 17 years
  4. 16 years Correct answer.

Explanation

In Western Australia a person may apply for a learner's permit from the age of 16. Learner drivers must display L plates and be supervised by a fully licensed driver. They must also complete a required number of supervised driving hours before progressing.

Question 22Road rules and traffic law

A driver parks on a road at night in an area with street lighting. Which requirement applies to parking lights?

  1. Parking lights must be on
  2. Hazard lights must be left flashing
  3. No lights are needed because of the street lights Correct answer.
  4. Headlights must be left on high beam

Explanation

Where adequate street lighting exists, a parked vehicle generally does not need to display lights at night. On unlit roads, however, parking lights are required so the vehicle can be seen. Leaving high beam on would dazzle other road users.

Question 23Road rules and traffic law

A driver intends to overtake a cyclist on a road with a marked bike lane. What is the safest and lawful approach?

  1. Overtake even if oncoming traffic is close
  2. Pass closely to discourage the cyclist from weaving
  3. Allow a safe lateral gap and pass only when the road ahead is clear Correct answer.
  4. Sound the horn and pass at speed

Explanation

When overtaking a cyclist, drivers should leave a safe lateral distance and only pass when there is a clear view and enough room. Cyclists can be affected by wind and road surface and may need to swerve. Passing closely or in the face of oncoming traffic endangers everyone.

Question 24Road rules and traffic law

A driver is waiting to turn right from a road into a driveway across a raised median strip. What does the law generally permit?

  1. Crossing only at a designated opening or break in the median Correct answer.
  2. Driving over the median if the vehicle is a four-wheel drive
  3. Reversing over the median to reach the driveway
  4. Crossing the raised median wherever it is convenient

Explanation

Raised medians must not be driven over; drivers may only cross at designated breaks or openings. Crossing elsewhere damages the median and can conflict with opposing traffic. The restriction protects both vehicles and pedestrians.

Question 25Road rules and traffic law

A driver is driving in fog and cannot see far ahead. Which lighting choice is correct?

  1. Use low beam or fog lights to reduce glare Correct answer.
  2. Use hazard lights while moving
  3. Use high beam so the light penetrates the fog
  4. Turn off headlights to avoid reflection

Explanation

In fog, high beam reflects off the moisture and reduces visibility, so low beam or fog lights should be used. Hazard lights should not be used while the vehicle is moving because they obscure turn signals. Reducing speed and increasing the following gap are also essential.

Question 26Road rules and traffic law

In Western Australia, what is the default speed limit on a built-up area street when no speed sign is displayed?

  1. 50 km/h Correct answer.
  2. 80 km/h
  3. 60 km/h
  4. 40 km/h

Explanation

In built-up areas the default speed limit is 50 km/h unless signs show otherwise. Drivers must always obey posted limits, which may be lower near schools or hazards. The default applies only where no sign gives a different limit.

Question 27Road rules and traffic law

What does a stop sign require a driver to do?

  1. Stop only when another vehicle is approaching
  2. Slow down and proceed if the road looks clear
  3. Come to a complete stop and give way before proceeding Correct answer.
  4. Sound the horn before moving off

Explanation

A stop sign requires a complete halt at the stop line, or at the intersection edge if there is no line. The driver must then give way to traffic and pedestrians before moving off. Rolling slowly through the sign is an offence even when the road appears empty.

Question 28Road rules and traffic law

A driver is entering a roundabout. Who must be given way to?

  1. Vehicles waiting to enter from the right
  2. Vehicles approaching from behind
  3. No one, because entering traffic has priority
  4. Vehicles already circulating in the roundabout Correct answer.

Explanation

Drivers entering a roundabout must give way to vehicles already circulating on it. This keeps traffic flowing and avoids collisions inside the circle. Entering drivers should also watch for pedestrians and cyclists at the crossings.

Question 29Road rules and traffic law

When are you permitted to cross a continuous double white centre line?

  1. When you want to overtake a slower vehicle
  2. At any time, because line markings are advisory only
  3. To enter or leave a property or side road, or to avoid an obstruction Correct answer.
  4. Whenever the road ahead is clear of traffic

Explanation

A continuous double white line must not be crossed to overtake or make a U-turn. The permitted exceptions include turning into or out of adjoining land or a side road, and passing a stationary obstruction when it is safe. Drivers should keep the crossing as short as possible.

Question 30Road rules and traffic law

What is the general rule about using a mobile phone while driving in Western Australia?

  1. It may be used only when stopped at red lights
  2. It may be used for short calls in slow traffic
  3. It must not be held or used while the vehicle is moving Correct answer.
  4. It may be used if the driver has held a licence for over five years

Explanation

Drivers must not hold or operate a mobile phone while driving, including while temporarily stopped in traffic. Phone use greatly increases crash risk by distracting the driver's eyes and attention. Hands-free use is also heavily restricted, and learner and provisional drivers face stricter rules.

Question 31Road rules and traffic law

What must a driver do before reversing a vehicle?

  1. Rely on the reversing camera alone
  2. Reverse quickly to minimise time in the roadway
  3. Check surroundings and ensure the path is clear before and while reversing Correct answer.
  4. Have a passenger sound the horn continuously

Explanation

Before reversing, a driver must check mirrors, look behind and confirm the path is clear of people and objects. Reversing should be done slowly, and the driver must keep checking as the vehicle moves. Cameras and sensors assist but do not replace direct observation.

Question 32Road rules and traffic law

Which document must a learner driver carry while driving in Western Australia?

  1. Only proof of vehicle registration
  2. Nothing, provided the vehicle is insured
  3. A current learner's permit together with a supervising driver who holds the required licence Correct answer.
  4. A signed note from a driving instructor

Explanation

A learner must hold a valid learner's permit and drive only while accompanied by a person who holds the appropriate full licence. The supervisor must sit beside the learner and must not be affected by alcohol or drugs. Carrying the permit allows police to verify the driver's status.

Question 33Road rules and traffic law

When a driver changes lanes, which action is legally required?

  1. Flash headlights so other drivers must make room
  2. Give way to traffic already in the lane being entered Correct answer.
  3. Accelerate hard so the gap cannot close
  4. Move across without indicating if the lane is empty

Explanation

A driver changing lanes must give way to vehicles already occupying the target lane. A signal must be given for long enough to warn other road users, and the driver should check mirrors and blind spots first. Forcing other drivers to brake is both unsafe and unlawful.

Question 34Road rules and traffic law

What is the rule for driving through a yellow traffic light?

  1. Reverse out of the intersection if you have already entered
  2. Speed up to beat the red light
  3. Treat it exactly like a green light
  4. Stop if it is safe to do so, otherwise proceed with caution Correct answer.

Explanation

A yellow light warns that the signal is about to turn red. Drivers should stop if they can do so safely, but if stopping suddenly would cause a crash they may continue through. Reversing out of an intersection is never permitted.

Question 35Road rules and traffic law

A driver is following a large truck that is signalling to turn left. What is the safest response?

  1. Overtake on the left as the truck slows
  2. Stay well back, because the truck may swing wide before turning Correct answer.
  3. Move up close to prevent other cars entering the gap
  4. Sound the horn to hurry the truck through the turn

Explanation

Large vehicles often swing out to the right before completing a left turn. Passing on the left in that situation risks a collision with the truck's trailer. Keeping well back gives the driver room and time to react.

Question 36Road rules and traffic law

Where a road has a painted median strip, what does the law generally allow?

  1. Crossing it to turn right into a property if it is a broken painted island Correct answer.
  2. Driving along the median to bypass congestion
  3. Parking on it overnight
  4. Using it as an overtaking lane

Explanation

A painted island marked with broken lines may generally be crossed to turn into a property or side road. Islands bounded by continuous lines must not be driven over. Painted areas are not travel or parking lanes.

Question 37Road rules and traffic law

A driver is approaching a pedestrian crossing with a splitter island and sees a pedestrian waiting. What is the correct action?

  1. Continue at the same speed because the pedestrian has not stepped out
  2. Sound the horn to warn the pedestrian to wait
  3. Slow down and prepare to stop, giving way if the pedestrian is crossing or about to cross Correct answer.
  4. Move into the next lane to pass without slowing

Explanation

Drivers must give way to pedestrians at marked crossings, including those waiting to cross at a splitter island. Approaching drivers should reduce speed and be ready to stop. Changing lanes to avoid giving way is unsafe and unlawful.

Question 38Road rules and traffic law

What is the general rule about U-turns in Western Australia?

  1. They are allowed anywhere unless a sign forbids them
  2. They are permitted only on roads with a median strip
  3. They are allowed at all intersections with traffic lights
  4. They must not be made where a sign prohibits them, across continuous lines, or where they would obstruct traffic Correct answer.

Explanation

A U-turn is lawful only when it can be made safely and is not prohibited by signs or line markings. Drivers must give way to all other traffic and must not cross continuous lines or disrupt the flow of vehicles. U-turns at traffic lights are generally restricted.

Question 39Road rules and traffic law

A driver intends to turn left at an intersection and a bicycle lane runs along the left side of the road. What is the correct approach?

  1. Turn from the general traffic lane without checking the bike lane
  2. Signal, check for cyclists and cross the bike lane only when it is clear Correct answer.
  3. Drive along the bike lane for the last 100 metres
  4. Cut across the bike lane early to block cyclists

Explanation

When turning across a bike lane, a driver must signal, check mirrors and blind spots, and give way to any cyclist in the lane. The turn should be made only when the lane is clear. Driving along a bike lane is not permitted.

Question 40Road rules and traffic law

What does a white diamond symbol painted in a lane indicate?

  1. A lane where a special speed limit applies
  2. A lane reserved for buses only
  3. A lane reserved for vehicles carrying a specified minimum number of occupants Correct answer.
  4. A lane that ends ahead

Explanation

A white diamond marks a transit or high-occupancy lane reserved for vehicles meeting the occupancy or class requirement shown on signs. Other drivers must stay out of it during the times indicated. The symbol does not change the general speed limit.

Question 41Road rules and traffic law

A driver is involved in a crash and the other vehicle is unattended. What should the driver do?

  1. Report the crash only if the damage exceeds the insurance excess
  2. Wait indefinitely beside the damaged vehicle
  3. Leave a note with contact details and report the crash to police as required Correct answer.
  4. Leave the scene quickly before anyone notices

Explanation

When a driver damages an unattended vehicle, they must leave their details and report the incident to police as required. Failing to do so can amount to a hit-and-run offence. Insurance excess is irrelevant to the legal duty.

Question 42Road rules and traffic law

What is the rule about towing a trailer on a public road?

  1. Any trailer may be towed without lights in daylight
  2. The trailer must be registered and display working lights and a number plate Correct answer.
  3. Only a trailer wider than the towing vehicle needs lights
  4. A trailer may carry passengers if seats are fitted

Explanation

A trailer used on public roads must be registered and fitted with functioning lights and a visible number plate. It must also be securely attached and within towing limits. Trailers must never carry passengers.

Question 43Road rules and traffic law

When may a driver sound the horn?

  1. To express frustration in traffic
  2. To greet a friend on the footpath
  3. To warn other road users of danger or to alert someone to move Correct answer.
  4. To signal a turn at an intersection

Explanation

The horn is a warning device to be used to alert others to danger or to signal a vehicle's presence. It must not be used for greeting, protest or as a substitute for an indicator. Unnecessary horn use can be an offence.

Question 44Road rules and traffic law

A driver is stopped at a level crossing where the boom gates are raised but a red light is flashing. What must the driver do?

  1. Drive around the boom gate if it is only partly lowered
  2. Wait until the red lights stop flashing before crossing Correct answer.
  3. Sound the horn and cross quickly
  4. Proceed because the gates are up

Explanation

Flashing red lights at a level crossing mean a train is approaching and the driver must stop and wait. The lights must stop flashing before the crossing is used, even if the gates remain raised. Passing around a lowered gate is extremely dangerous.

Question 45Road rules and traffic law

A driver wishes to make a right turn from a one-way street into another one-way street. From which part of the road should the turn be made?

  1. From the far left lane
  2. From the centre lane only if it is marked as a turning lane
  3. From any lane, because both streets are one-way
  4. From the right lane or as close as practicable to the right side Correct answer.

Explanation

When turning right, a driver should approach from the right lane or as close as practicable to the right side of the road. On a one-way street this may still be the right-hand lane. Turning from the wrong lane risks colliding with vehicles going straight ahead.

Question 46Road rules and traffic law

A driver passes a stationary school bus displaying flashing lights. What is the required action?

  1. Maintain speed because children are still on the bus
  2. Stop only if a teacher signals
  3. Overtake quickly before children step off
  4. Slow down to 40 km/h and give way to children crossing Correct answer.

Explanation

When a school bus displays flashing lights, passing drivers must slow to 40 km/h and be ready to stop for children crossing. The rule protects children who may step out unexpectedly. Normal speed may be resumed once the bus lights stop flashing.

Question 47Road rules and traffic law

A driver is tired on a long country trip. Which action best complies with fatigue-management obligations?

  1. Open a window and keep driving to the destination
  2. Drink coffee while driving to stay alert
  3. Increase speed to finish the trip sooner
  4. Stop and rest at a safe place before continuing Correct answer.

Explanation

Fatigue seriously impairs reaction time and judgement, and drivers are responsible for managing it. The safe response is to stop in a safe place and rest before continuing. Fresh air, coffee and speed changes do not remove the underlying tiredness.

Question 48Road rules and traffic law

A driver is approaching an intersection where the traffic lights have failed and are dark. What should the driver do?

  1. Treat the intersection as an uncontrolled one and apply give-way rules Correct answer.
  2. Assume the road with more lanes has priority
  3. Proceed at the normal speed because the lights are off
  4. Wait until police arrive before moving at all

Explanation

When traffic lights are not operating, the intersection is treated as uncontrolled and normal give-way rules apply. Drivers should approach slowly and be prepared to stop. Assuming priority from lane numbers or waiting indefinitely are not lawful or practical responses.

Question 49Road rules and traffic law

A driver wants to overtake a long vehicle on a two-lane rural road with an unbroken centre line. What is the correct decision?

  1. Do not overtake, because the continuous line prohibits the manoeuvre Correct answer.
  2. Overtake by using the road shoulder
  3. Overtake only if the vehicle is travelling below the speed limit
  4. Overtake if the oncoming lane looks empty for a short distance

Explanation

An unbroken centre line prohibits overtaking, and long vehicles also need extra time and distance to pass safely. A driver must wait for a lawful overtaking opportunity with clear visibility. Using the shoulder or relying on a brief gap is dangerous.

Question 50Road rules and traffic law

A driver is directed by a police officer to proceed through a red light. What should the driver do?

  1. Wait for the green light regardless of the officer
  2. Refuse, because traffic signals always take priority
  3. Obey the officer's direction, because it overrides the traffic signal Correct answer.
  4. Proceed only after another driver moves first

Explanation

Directions given by a police officer controlling traffic take precedence over traffic signals and signs. Drivers must follow the officer's signals carefully and proceed only as directed. Ignoring a lawful direction can be an offence.