Technical Standards and Operation of Road Passenger Vehicles
This domain covers the vehicle itself: its legal condition and how it is operated safely. Know the periodic technical inspection regime (roadworthiness tests), the documents certifying it, and the operator's duty to keep vehicles roadworthy between inspections. Study the systems a candidate must be able to explain: brakes (service, parking, emergency), steering, suspension, tyres (tread depth, pressure, load rating, condition), lighting and signalling, mirrors and field of vision, glazing, doors and emergency exits, seat belts and their anchorages, and fire extinguishers and first-aid equipment.
Understand mass and dimensions: permissible gross weight, axle loads, seating capacity, and the effect of overloading on braking and stability. Learn the coupling and towing rules where relevant, and the requirements for school buses or special services if the jurisdiction provides them. Know the pre-departure daily check - lights, brakes, tyres, fluids, emergency equipment - and the driver's duty to report defects and not to drive an unroadworthy vehicle.
Traps: confusing tread-depth minimums across vehicle categories; assuming a valid inspection certificate guarantees roadworthiness on the day; and forgetting that emergency exits must be unobstructed and operable. Questions may present a defect and ask the correct action - the answer is usually do not operate; report and repair.
Worked rule of thumb: if a safety-critical defect (brakes, steering, tyres, lights) is found, the vehicle is out of service until repaired - a valid certificate does not override a present defect.