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DNVT Driving Theory study materials
DNVT Driving Theory study resources

DNVT Driving Theory: Vehicle Controls, Handling and Mechanical Awareness

DNVT Driving Theory · Work through your exam, one topic at a time.

All guide sections

Vehicle Controls, Handling and Mechanical Awareness

What this domain covers

Vehicle Controls, Handling and Mechanical Awareness tests your ability to operate the controls smoothly and recognise when the vehicle is unsafe. Questions cover cockpit drill, braking, steering, ABS, tyres and warning lights.

Controls and cockpit drill

Set the seat so you can press the clutch fully and hold the wheel with slightly bent arms. Adjust mirrors before moving. Use push-pull steering rather than crossing your hands. Find the clutch bite point smoothly; do not ride the clutch. Brake progressively and release smoothly.

ABS and braking

ABS prevents wheel lock and allows steering under heavy braking. In an emergency, press the brake firmly and keep it pressed; do not pump the pedal. You may feel vibration or hear noise; that is normal. On loose surfaces ABS may increase stopping distance slightly, so leave more space.

Tyres and warning lights

Check tyre pressures cold and tread depth regularly; the legal minimum varies, but a common minimum is 1.6 mm across the central three-quarters. A tyre blowout needs a firm grip, easing off the accelerator and gentle steering; do not brake hard. Red warning lights (oil pressure, battery, coolant) mean stop safely and investigate; amber lights mean caution and check soon.

Worked example

The ABS warning light stays on after you start the engine. What should you do? The normal brakes may still work but ABS may be disabled. Drive cautiously to a garage; do not ignore it or test the ABS on the road. Reasoning: the light indicates a fault in the anti-lock system; braking may lock wheels in an emergency.

Traps that cost marks

  • Pumping the brake pedal in a car with ABS.
  • Coasting downhill in neutral or with the clutch held down.
  • Ignoring a red warning light because the engine still runs.
  • Checking tyre pressure when tyres are hot and setting them to the hot reading.
  • Steering with one hand during a manoeuvre.

Key points

  • Press and hold the brake with ABS; do not pump.
  • Red warning light: stop safely. Amber: check soon.
  • Check tyre pressures cold; tread depth matters for grip and legality.
  • Blowout: grip wheel, ease off accelerator, avoid hard braking.
  • Use push-pull steering and smooth inputs.
  • Do not coast; keep the vehicle in gear.