DKTKey points on more safe driving for the Western Australia learner test. Each answer is checked against the official Western Australia handbook or road rules; use the practice-question links to test yourself.
A speed limit sign shows 100 km/h but it is pouring with rain. What is the best speed?
Answer: Slower than 100 km/h to suit the conditions
The speed limit is the maximum in ideal conditions. You must drive to the conditions, which may mean much slower.
Practice question 447 · official source
When your speed doubles, what happens to your braking distance?
Answer: It becomes about four times longer
Braking distance rises faster than speed. Doubling your speed makes the braking distance roughly four times as long.
Practice question 448 · official source
Total stopping distance is made up of which two parts?
Answer: Reaction distance plus braking distance
You travel a reaction distance before the brakes start to work, then a braking distance until you stop.
Practice question 449 · official source
A driver is following your car very closely. What is the safest response?
Answer: Keep a steady speed, leave extra room ahead and let them pass when safe
Do not brake hard or speed. A bigger gap ahead lets you slow gradually, and letting the tailgater pass removes the risk.
Practice question 450 · official source
How does towing a trailer or caravan affect your driving?
Answer: It lengthens stopping distance and takes more room to turn and overtake
A trailer adds weight and length, so allow more space to brake, turn and overtake.
A long truck displaying a "Do not overtake turning vehicle" sign is slowing to turn left at an intersection. What should you do?
Answer: Stay behind and wait until it has completed its turn
Long vehicles can swing out across lanes and swing wide, crushing anything beside them. Stay back until the turn is complete.
Practice question 452 · official source
What is the minimum legal tread depth for a car tyre across its main tread?
Answer: 1.5 mm
Car tyres must have a visible tread pattern and at least 1.5 mm of tread depth, and must not be worn to the wear indicators.
Practice question 453 · official source
What is a result of driving on under-inflated tyres?
Answer: Higher fuel consumption
Under-inflated tyres increase rolling resistance, which increases fuel use. Check pressures regularly, including the spare.
Practice question 454 · official source
You notice one brake light has stopped working before a night drive. What should you do?
Answer: Have it repaired before driving at night
Check that headlights, brake lights and indicators work. You must not drive at night if your lights are not working.
Practice question 455 · official source
Which habit best helps prevent a breakdown?
Answer: Regularly checking fuel, oil, water and tyre pressure
Plan ahead by regularly checking fuel, oil, coolant and tyre pressure, including the spare.