Driver Knowledge Tests

How do DPD (diesel particulate diffuser) systems work?

DPD systems are a type of emissions control system common on newer trucks. They’re also called DPF (diesel particulate filter) systems. They are designed to remove diesel particular matter (soot) from the exhaust gas in a diesel engine. The DPD

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How to reduce truck idling time to save fuel

Modern trucks are becoming more and more like substitutes for home, and drivers expect it. Cabs contain microwave ovens, refrigerators, gaming consoles, TVs, laptops and other electronic creature comforts that the driver can use during their rest periods; they also

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Battery maintenance for trucks and cars

Vehicle batteries have a finite life – usually three to four years, but it depends on their application and operating conditions. If a battery fails at a critical time it can lead to inconvenience and costs as it could leave

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Vehicle safety in high winds: curtainside trucks

Strong winds can easily blow your truck over. In fact, a 100km/h gust can put as much as 30 tonnes of pressure on the side of a semitrailer. If you’re running empty or carrying a light load like cornflakes, your

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How and when to use your handbrake or parking brake in a car

With a name like parking brake, it should be obvious when you should use it, but it’s also called a handbrake, emergency brake or e-brake in various parts of the world. It’s not just as simple as understanding that you

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Lug nut and wheel nut indicators – how they work

If a wheel comes off a truck, it’s a 120kg missile that can easily kill someone and will definitely cause a lot of damage to property. The problem is that it’s difficult to tell if your wheel nuts are coming

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What’s it like to drive on the other side of the road?

How to drive on the ‘wrong’ side of the road If you learned to drive with the steering wheel on the right and driving in the left-hand lane, swapping over when you go on holiday or go and live overseas

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