Saudi Heavy Vehicle Theory study guide
Saudi Heavy Vehicle Theory · Work through your exam, one topic at a time.
The Saudi Heavy Vehicle Theory Test is the knowledge component of the licensing process for drivers who want to operate heavy vehicles on Saudi roads - trucks, tankers, trailers and other large commercial units. It is aimed at new heavy-vehicle candidates, drivers upgrading from a light-vehicle licence, and experienced drivers who need to convert a foreign licence or reinstate a licence after suspension. The Saudi Heavy Vehicle Theory study guide has 9 sections and about 3,657 words.
01Traffic laws, regulations and road signs
This domain tests the legal layer of driving in Saudi Arabia: the Traffic Law and its Implementing Regulations (Royal Decree M/85, 1428H, as amended), enforced by the General Directorate of Traffic (Muroor), the Saher automated enforcement network, and the signs and markings whose instruction outranks your own judgement. Traffic keeps right; overtaking is on the left.
412 words, about 2 min02Heavy vehicle classification, licensing categories and load limits
This domain tests whether you can match a vehicle to the right licence and keep a combination inside the legal weight envelope. It is the most common source of expensive roadside penalties for operators.
410 words, about 2 min03Vehicle inspection, roadworthiness and pre-trip checks
This domain tests the daily walk-around, the statutory periodic inspection, and the judgement to defect a vehicle instead of driving it. Heavy and commercial vehicles undergo periodic technical inspection (الفحص الدوري) at an approved station.
369 words, about 2 min04Air brake systems and heavy vehicle braking
This domain tests how the air system works, which tests prove it will stop, and how to brake a loaded combination on a long descent without destroying the brakes. An engine-driven compressor charges a wet tank and then dual service circuits through a foot valve.
401 words, about 2 min05Safe driving, following distance and speed management
This domain tests whether you can choose a speed and a gap that match the vehicle's mass, the road and the conditions - the two decisions that most often decide whether a heavy vehicle crash happens. Use the time gap, not metres.
443 words, about 2 min06Cargo securement, loading and weight distribution
This domain tests whether you can load a heavy vehicle so it stays within its axle limits, keeps a low centre of gravity, and stays attached when the driver brakes, turns or hits a bump. Load forward against the headboard and keep the centre of gravity as low and as central as possible.
419 words, about 2 min07Hazard perception, defensive driving and emergency handling
This domain tests whether you see the hazard before it becomes an emergency, and whether your reaction in the first two seconds is the correct one. Look 12–15 seconds ahead, roughly a kilometre at highway speed, and sweep mirrors every 5–8 seconds.
397 words, about 2 min08Fatigue, alcohol and drug awareness, and driver fitness
This domain tests the impairments that no amount of skill can overcome, and the fitness standards a professional driver must maintain. Saudi Arabia prohibits alcohol entirely: there is no legal limit, and driving after drinking is a criminal offence with imprisonment, licence loss and deportation for expatriates.
386 words, about 2 min09Accidents, incident reporting and first response
This domain tests what you do in the first ten minutes after a crash: make the scene safe, get the right help, preserve evidence and report correctly. Stop, switch off, hazard lights on, handbrake applied.
420 words, about 2 min