Tabuk General Dept. of Traffic - Saudi Heavy Vehicle Skills Test 2

Q: How many questions is the Tabuk General Dept. of Traffic truck & bus theory test?

The official General Dept. of Traffic truck & bus theory test in Tabuk has 35 questions and you need 26 correct (75%) to pass. This practice test has 22 questions.

Q: Is this the real exam?

These are original practice questions to help you revise. They are not the official Saudi exam and the real question bank, format, fees and pass mark are set by the General Department of Traffic (Moroor) and the driving schools, and can change. Always confirm the current requirements with your driving school or the traffic department.

Q: Is this practice test free?

Yes. It is completely free, with no signup or payment, and you can retake it as many times as you like.

Q: What does the Tabuk truck & bus theory test cover?

Road signs, traffic signals, right of way, roundabouts, speed limits, seat belts, penalties and safe-driving rules, plus the handling and safety topics specific to your vehicle.

Question 1

After coupling a trailer to a tractor unit, which check is most critical before moving the vehicle?

Accepted Answer

Perform a tug test by engaging a low gear and pulling forward gently to confirm the kingpin is locked in the fifth wheel and will not release. A tug test must be performed after coupling. The driver engages a low gear and gently tries to drive forward while the trailer brakes are still applied. If the kingpin is not properly locked in the fifth wheel, the trailer will separate during this test rather than on the road. Visual inspection alone is insufficient.

Answer

Check that the trailer number plate matches the documents and then drive away

Answer

Connect all electrical and air lines, then immediately perform a full-speed run to settle the coupling

Answer

Only visual inspection of the coupling from ground level is necessary

Question 2

Before uncoupling a trailer on an incline, what must the driver do to prevent the trailer from rolling away?

Accepted Answer

Apply the trailer hand brake, chock the trailer wheels on the downhill side, and lower the landing legs to a stable position before releasing the fifth wheel. Before uncoupling on an incline, the trailer hand brake must be applied, wheel chocks placed on the downhill side, and the landing legs lowered and confirmed on stable ground. Only then should the fifth wheel be released. A trailer with no brakes or chocks can roll and cause fatal injuries.

Answer

Simply apply the tractor handbrake; the tractor will hold the trailer in position

Answer

Lower the landing legs only; the trailer brakes will hold automatically once decoupled

Answer

Uncoupling on an incline is perfectly safe provided the ground is firm

Question 3

A driver is about to couple a tractor to a semi-trailer. The trailer is slightly higher than the fifth wheel. What adjustment should be made?

Accepted Answer

Raise the tractor's air suspension or adjust the fifth-wheel height so the fifth wheel is slightly above the trailer skid plate, allowing it to slide under and lock cleanly. The fifth wheel must be at the correct height relative to the trailer skid plate for a clean and secure coupling. If the trailer is higher than the fifth wheel, the tractor suspension should be raised (or the fifth-wheel height adjusted) so the fifth wheel is slightly above the skid plate and can slide under and catch the kingpin correctly. Ramming at speed risks damaging the coupling.

Answer

Drive the tractor under the trailer at speed to force the coupling with momentum

Answer

Lower the trailer landing legs further until the trailer tilts and the kingpin lines up

Answer

No adjustment is needed; the fifth wheel will pull the trailer down automatically

Question 4

What is the role of a banksman when a heavy truck is reversing in a confined area?

Accepted Answer

To guide the driver by using agreed hand signals or a radio from a position where the driver can see them and where they can see all hazards. A banksman guides a reversing heavy vehicle using clear, agreed hand signals or radio communication. Critically, the banksman must stand in a position where the driver can see them and from where they can see all hazards including pedestrians, vehicles, and fixed obstacles. If the banksman disappears from view, the driver must stop immediately.

Answer

To stand behind the trailer and shout warnings, even if the driver cannot see or hear them

Answer

To operate the trailer brakes independently using a remote control

Answer

To direct traffic past the truck while it reverses; they have no role in guiding the driver

Question 5

While reversing a large articulated truck with a banksman, the banksman suddenly disappears from view. What must the driver do?

Accepted Answer

Stop the vehicle immediately and not move again until the banksman reappears in a visible position. If the banksman disappears from view at any point during the reversal, the driver must stop immediately. The banksman may have fallen, been struck by the vehicle, or moved to avoid an unseen hazard. The only safe action is to stop and not resume until the banksman is visible again and signals it is safe to continue.

Answer

Continue reversing slowly and assume the banksman has moved aside to avoid the truck

Answer

Sound the horn and continue reversing at the same speed

Answer

Look in the mirrors for the banksman and continue only if no hazards are visible

Question 6

A heavy truck driver must reverse into a loading bay without a banksman. What precautions are most important?

Accepted Answer

Walk the entire reversing path before starting to identify all hazards, use all available mirrors and cameras, reverse slowly, and stop if vision becomes obstructed. Without a banksman, the driver must physically walk the reversing path before starting to identify hazards, persons, and fixed obstacles that mirrors and cameras may miss. Reversing should be done as slowly as possible, using all available visual aids, and stopping if vision becomes unclear. A continuous horn does not substitute for proper hazard assessment.

Answer

Sound the horn continuously while reversing to warn anyone in the path

Answer

Reverse as quickly as possible to minimise the time the truck is in a vulnerable position

Answer

Ask another driver to watch through their cab window and wave if they see a problem

Question 7

What is the maximum permitted speed for a heavy truck on a Saudi dual carriageway (expressway) outside urban areas?

Accepted Answer

Typically lower than for light vehicles, often around 90 to 100 km/h, but always confirm the current limit with the General Department of Traffic (Moroor) as it varies by road and vehicle type. Heavy trucks are subject to lower speed limits than light vehicles in Saudi Arabia. The precise limit depends on the road type, the vehicle's gross weight, and current regulations. Always confirm the applicable limit with the General Department of Traffic (Moroor) before each journey.

Answer

120 km/h, the same as for private cars

Answer

150 km/h on motorways with no speed camera enforcement

Answer

Speed limits do not apply to heavy trucks licensed for long-distance haulage

Question 8

In urban areas in Saudi Arabia, what speed limit typically applies to heavy trucks where no other sign is posted?

Accepted Answer

Generally 50 km/h or lower as posted, but confirm the current urban limit with the General Department of Traffic (Moroor). Urban speed limits in Saudi Arabia generally apply to all vehicle types. Heavy trucks must comply with posted urban limits, which are typically 50 km/h or lower in built-up areas. Confirm current requirements with the General Department of Traffic (Moroor).

Answer

80 km/h because heavy trucks need extra space and time to manoeuvre

Answer

100 km/h on all roads with three or more lanes

Answer

There is no urban speed limit for heavy trucks; the driver is expected to judge safe speed

Question 9

A heavy truck is equipped with a speed limiter. The limiter is set to 90 km/h. A traffic sign shows a 110 km/h limit. What must the driver do?

Accepted Answer

Comply with the lower of the two limits, which is the 90 km/h speed limiter setting; the vehicle must not exceed the limiter regardless of the posted limit. A speed limiter is a legal device that must not be overridden or tampered with. The driver must comply with the lower of the speed limiter setting and the posted speed limit. If the posted limit is 110 km/h but the limiter is set to 90 km/h, the maximum permitted speed is 90 km/h.

Answer

Override the speed limiter because posted road signs always take priority over vehicle settings

Answer

Drive at 110 km/h only on multi-lane roads where overtaking lanes are available

Answer

Remove the speed limiter fuse temporarily and drive at the posted speed

Question 10

Which tyre check is most important during a pre-trip inspection of a heavy truck in Saudi Arabia's hot climate?

Accepted Answer

Check tyre pressure when cold, inspect for cuts, bulges, uneven wear, and embedded objects, and check that all wheel nuts are properly torqued. Pre-trip tyre checks must include cold pressure measurement (not the maximum sidewall rating, which is the absolute limit not the target), visual inspection for cuts, bulges, foreign objects, and uneven wear, and a check that wheel nuts are secure. In Saudi Arabia's extreme heat, underinflated or damaged tyres are at very high risk of sudden failure.

Answer

Only check that tyres appear inflated visually; precise pressure measurement is needed only at service intervals

Answer

Inflate tyres to the maximum sidewall pressure rating before each trip to compensate for heat expansion

Answer

Check tread depth only; pressure and sidewall condition are secondary concerns

Question 11

During a pre-trip brake check on a truck with air brakes, the driver builds pressure to maximum, turns off the engine, and observes the gauges. If the pressure drops more than approximately 10 psi in one minute, what does this indicate?

Accepted Answer

There is a significant air leak in the braking system that must be located and repaired before the vehicle is driven. A pressure drop greater than approximately 10 psi per minute (with engine off) indicates a significant leak in the air-brake system. A leaking system may not maintain adequate pressure to operate the brakes safely and could allow the pressure to fall to the level where the spring brakes automatically apply while the vehicle is moving. The leak must be repaired before the vehicle is used.

Answer

The air dryer is working correctly and removing moisture from the system

Answer

The pressure drop is normal and the vehicle is safe to drive

Answer

The spring brakes need adjusting at the next scheduled service

Question 12

What should a heavy truck driver check regarding lights and reflectors during a pre-trip inspection?

Accepted Answer

All headlamps, indicators, brake lights, reverse lights, and reflective markers on the vehicle and trailer must be clean, undamaged, and functioning. All lighting and reflective equipment on both the tractor and the trailer must be checked at every pre-trip inspection. This includes headlamps, indicators, brake lights, reverse lights, side marker lights, and reflectors. A truck or trailer with defective lighting is illegal and significantly increases collision risk, especially in the long distances and low-traffic desert roads of Saudi Arabia.

Answer

Only the headlamps and brake lights need checking; marker lights are optional on trailers

Answer

Lights only need checking at night or in bad weather

Answer

Only lights visible from the front of the vehicle are required by law

Question 13

A driver carries out a pre-trip inspection and finds that one of the dual rear tyres is flat while its twin appears correctly inflated. What action must be taken?

Accepted Answer

Replace or repair the flat tyre before moving the vehicle; operating on a single tyre in a dual fitment overloads the remaining tyre and can cause its sudden failure at speed. A flat tyre in a dual fitment must be repaired or replaced before the vehicle moves. The remaining inflated tyre now carries the full load of two tyres, causing it to overheat and likely fail. At highway speed this can cause catastrophic blowout and loss of control. Do not drive even a short distance on a single tyre in a dual fitment.

Answer

Drive carefully to the nearest tyre workshop at reduced speed, as the good tyre can handle the load for short distances

Answer

Inflate the flat tyre to double the normal pressure to compensate, then drive to the next stop

Answer

It is acceptable to drive on a single tyre in a dual fitment as long as the vehicle is not fully loaded

Question 14

Saudi Arabia requires heavy truck and bus drivers to observe mandatory rest periods to prevent fatigue. What is the general principle regarding continuous driving time before a rest break?

Accepted Answer

Drivers must take a rest break after a period of continuous driving; confirm the exact duration and break requirements with the General Department of Traffic (Moroor). Saudi Arabia imposes driving-hours rules on heavy vehicle and bus drivers to manage fatigue. Continuous driving must be followed by mandatory rest breaks. The precise maximum driving period and required break duration should be confirmed with the General Department of Traffic (Moroor), as they are subject to change.

Answer

Drivers may drive continuously for 24 hours as long as they feel alert

Answer

Rest breaks are only required for night driving

Answer

Fatigue rules apply only to drivers carrying passengers, not freight drivers

Question 15

Which sign is a reliable indicator that a heavy truck driver is becoming dangerously fatigued?

Accepted Answer

Difficulty staying in the lane, heavy eyelids, missing road signs or turns, and microsleeps (brief involuntary sleep episodes). Serious fatigue signs include drifting out of lane, heavy or closing eyelids, missing exits or signs that were clearly visible, and microsleep episodes where the driver loses consciousness for a few seconds. At highway speed, a microsleep lasting only two seconds travels over 50 metres uncontrolled. If any of these signs appear, the driver must stop and rest immediately.

Answer

Feeling slightly hungry and thinking about the next fuel stop

Answer

Finding the radio less interesting than usual

Answer

Checking the mirrors more often than normal

Question 16

A truck driver is halfway through a long overnight desert crossing and begins to feel very drowsy. What is the safest action?

Accepted Answer

Pull off the road safely, park with hazard lights on, take a rest or short sleep, and only continue driving when fully alert. The only safe response to severe drowsiness is to stop the vehicle in a safe location, switch on hazard lights, and sleep. Coffee and stimulants provide only brief, unreliable alertness and do not substitute for sleep. Opening windows or turning up the radio are ineffective for serious fatigue. Driving fast to finish sooner greatly increases the risk of a fatal accident.

Answer

Open the windows and turn up the radio to stay awake for the remainder of the journey

Answer

Drink strong coffee and continue driving at a reduced speed

Answer

Accelerate to reach the destination sooner and reduce total driving time

Question 17

Under Saudi driving-hours rules, what is the employer's responsibility regarding driver fatigue?

Accepted Answer

Employers must not require or instruct drivers to drive in violation of hours-of-service rules and must schedule trips so rest requirements can be met. Both driver and employer share responsibility for compliance with driving-hours rules. An employer who schedules or demands trips that cannot be completed within legal driving-hours limits is in breach of the regulations. Drivers must not comply with unlawful instructions and must report such pressure to the relevant authority.

Answer

Fatigue is entirely the driver's personal responsibility; the employer has no legal duty

Answer

The employer is only responsible if the driver reports fatigue in writing before the trip

Answer

Employers can grant waivers for drivers to drive beyond the legal limit if cargo is time-sensitive

Question 18

A bus driver notices a passenger standing in the aisle while the bus is moving on a highway. What must the driver do?

Accepted Answer

Stop safely and instruct the passenger to sit down before continuing the journey. Passengers must be seated while a bus is in motion on a highway. A standing passenger is at high risk of serious injury if the driver brakes suddenly or is involved in a collision. The driver must stop safely and ensure the passenger is seated before resuming the journey.

Answer

Continue driving and ask the passenger verbally to sit down without stopping

Answer

Slow down to 30 km/h to reduce the risk to the standing passenger

Answer

A standing passenger in the aisle is permitted if all seats are occupied

Question 19

What precaution must a bus driver take at an unsupervised bus stop when children are boarding or alighting?

Accepted Answer

Wait until all children have moved clear of the bus and onto the pavement before moving off, and check mirrors thoroughly for children who may be in blind spots. Children are unpredictable and can move quickly into dangerous positions near a bus. The driver must confirm through mirrors that all children are clear of the vehicle and have reached the pavement before moving off. A child crossing in front of the bus may be completely invisible to the driver from the cab.

Answer

Sound the horn twice to signal that children should move and then drive away slowly

Answer

Begin moving as soon as the doors have closed, regardless of children's position

Answer

Only the last child off the bus must be seen in the mirror before moving

Question 20

A bus driver discovers that the emergency exit door at the rear of the bus is jammed and will not open. What should the driver do?

Accepted Answer

Take the bus out of service immediately and not carry passengers until the emergency exit is repaired and functioning correctly. Emergency exits on buses are a legal safety requirement. A bus with a non-functional emergency exit must be taken out of service immediately. Carrying passengers in a bus with defective emergency exits is illegal and could result in deaths in the event of a fire or collision.

Answer

Continue operating the route because the front door provides an alternative exit

Answer

Inform passengers of the problem verbally and ask them to use the front door only in an emergency

Answer

Block the rear seats off and continue operating with the reduced passenger capacity

Question 21

A bus driver is involved in a minor collision that damages the front bumper. The bus is otherwise driveable and passengers are uninjured. What is the correct procedure?

Accepted Answer

Stop, secure the vehicle, check all passengers for injury, call the emergency services and the operator to report the incident, and follow official instructions before moving. Any collision involving a passenger-carrying vehicle must be reported to emergency services and the operator regardless of apparent injury. Some injuries are not immediately apparent, and the operator must be informed to arrange a replacement vehicle and carry out an incident investigation. The driver should not move the vehicle until instructed by the relevant authority.

Answer

Continue to the next stop and report the damage at the depot at the end of the shift

Answer

Ask passengers if they are okay and, if they say yes, continue the route without reporting

Answer

Exchange details with the other driver and continue immediately without reporting to the operator

Question 22

What marking system identifies a heavy vehicle carrying dangerous goods on Saudi roads?

Accepted Answer

Orange-coloured hazard identification number panels and UN number plates on the front and rear, plus diamond-shaped hazard warning labels on the sides and ends of the tank or container. Dangerous goods vehicles must display orange hazard identification number panels front and rear, plus the appropriate diamond-shaped hazard labels indicating the class of hazard. These markings allow emergency services to immediately identify the substance involved in the event of an accident and take appropriate action.

Answer

A single red flag attached to the rear of the vehicle

Answer

A yellow flashing light on the roof of the cab is the only requirement

Answer

No special markings are required if the cargo is in sealed containers

Tabuk General Dept. of Traffic - Saudi Heavy Vehicle Skills Test 2

Tabuk General Dept. of Traffic - Saudi Heavy Vehicle Skills Test 2

What this test covers

Frequently asked questions