Al Shamal General Directorate of Traffic Truck & Bus
Timed mock exam· Full mock examsAl Shamal General Directorate of Traffic - Qatar Truck & Bus Theory Mock Test 1
A full 40-question timed practice exam for the Qatar heavy-vehicle (truck and bus) theory test, set at the reported 37/40 (92.5%) pass mark. Covers shared road rules and signs plus heavy-vehicle handling and safety.
What is the primary purpose of a front airbag in a crash?
The other 30 questions in this test
Read them all. The answer and the reason for each, and the timed 40-question run, are in the Qatar Driving Theory Online Practice Bank.
- Q11Road signs and signals
What does a white rectangular sign with a black border and a speed number crossed by a diagonal line indicate?
- AThe end of that specific speed-limit restriction
- BA new lower speed limit begins
- CMinimum speed required
- DSchool zone ahead
Answer and explanation in the bank
- Q12Traffic rules
Before reversing in Qatar, what must you do?
- ASound your horn once and begin reversing
- BReversing is always the responsibility of other road users to avoid
- CCheck all around the vehicle for people, obstacles, and other traffic before moving
- DSwitch on high-beam headlights so others can see you
Answer and explanation in the bank
- Q13Right of way
You are approaching a level crossing with a red flashing light and no barriers. The light stops flashing. When may you proceed?
- AImmediately when the flashing stops
- BAfter waiting exactly 30 seconds
- COnly after you are certain no train is approaching and the crossing is clear
- DAs soon as the first car ahead of you moves
Answer and explanation in the bank
- Q14Safe driving
What is the correct procedure if your accelerator pedal sticks while driving?
- AApply the brakes firmly, shift to neutral, steer to the side of the road, and stop safely
- BSwitch off the ignition key while travelling at speed to cut the engine
- CPump the accelerator rapidly to free it before braking
- DSignal right and continue until the vehicle slows naturally
Answer and explanation in the bank
- Q15Penalties and fines
What should a driver do if they find no legal parking space near their destination in Qatar?
- APark on the pavement, leaving one lane clear for traffic.
- BDrive to an authorised car park or legal parking area, even if it is further away.
- CDouble park next to a legally parked car and leave their hazard lights on.
- DPark in a disabled bay if they do not plan to stay long.
Answer and explanation in the bank
- Q16Heavy vehicle
What warning must be displayed at the rear of an oversized load that projects beyond the rear of a truck?
- AA green light to indicate the load is approved by the authorities
- BA white reflective panel is sufficient for all conditions
- CNo marking is required if the projection is less than one metre
- DA red flag or board during the day and a red light at night, plus a rear-facing reflective warning marker
Answer and explanation in the bank
- Q17Road signs and signals
What does the colour green on road signs in Qatar generally represent?
- AProhibition of traffic movements
- BWarning of hazards ahead
- CRoute and direction information for major roads or expressways
- DMandatory instructions you must follow
Answer and explanation in the bank
- Q18Traffic rules
On which type of road is reversing absolutely prohibited in Qatar?
- ANarrow residential streets
- BRoads with a speed limit above 60 km/h
- CMotorways and expressways
- DAll roads during daytime hours
Answer and explanation in the bank
- Q19Right of way
You are on a dual carriageway and want to make a U-turn at a designated U-turn gap. Who has priority?
- AYou, because you are using a designated U-turn point
- BTraffic behind you that is also waiting to U-turn
- COncoming traffic on the other carriageway that you must cross
- DNo one; both sides must stop for a U-turn
Answer and explanation in the bank
- Q20Safe driving
What does eco-driving mean and how does it improve safety?
- ASwitching off the engine at every traffic signal
- BDriving below the posted speed limit at all times
- CSmooth acceleration, maintaining steady speed, and anticipating stops, which also reduces harsh braking incidents
- DUsing only the highest gear possible regardless of engine load
Answer and explanation in the bank
- Q21Penalties and fines
A driver parks in a space reserved for people with disabilities without a valid disabled parking permit in Qatar. Which outcome is most likely?
- ANo penalty if the space was empty and the stop lasted under 10 minutes.
- BOnly a verbal warning on a first occasion.
- CA penalty only if a person with a disability needed the space during that time.
- DA fine and 3 black points, and the vehicle may also be towed.
Answer and explanation in the bank
- Q22Heavy vehicle
A truck driver notices the air pressure warning buzzer sounds during a journey. What must they do?
- ADrive to the next town where a mechanic is available, as the warning indicates a minor system alert
- BPump the brake pedal rapidly to build pressure and continue at reduced speed
- CSwitch off the engine and restart it; the compressor will rebuild pressure during idling
- DPull over and stop safely as soon as possible; do not continue until the fault is diagnosed and repaired
Answer and explanation in the bank
- Q23Road signs and signals
What do orange or amber road signs typically indicate in Qatar?
- APermanent speed limits
- BSchool zone signs
- CDirection signs to hospitals
- DTemporary signs for roadworks or construction ahead
Answer and explanation in the bank
- Q24Traffic rules
When towing a trailer in Qatar, what must be securely connected between the towing vehicle and the trailer?
- AThe tow bar coupling and a secondary safety chain or cable
- BOnly the tow bar coupling
- CA rope of any strength as a backup
- DNo secondary connection is required if the coupling is rated correctly
Answer and explanation in the bank
- Q25Right of way
You are in a queue at traffic lights and the lights turn green but an ambulance is still clearing the junction. What do you do?
- AProceed immediately on the green light
- BWait until the ambulance has fully cleared the junction, then proceed on the green
- CSound your horn to alert the ambulance driver to speed up
- DMove forward slowly to fill the junction
Answer and explanation in the bank
- Q26Safe driving
How does engine braking (lifting off the accelerator in a lower gear) assist safety on a long downhill section?
- AIt engages the ABS automatically for better control
- BIt increases engine temperature to clear desert dust from the filters
- CIt reduces reliance on the footbrake, preventing brake fade from overheating
- DIt has no practical safety benefit on modern automatic vehicles
Answer and explanation in the bank
- Q27Penalties and fines
Qatar sets a legal limit on how dark window tinting on a private vehicle can be. Why does this rule exist?
- AThe rule exists only to preserve the appearance of the road environment.
- BDark tinting is only regulated to protect upholstery from sun damage.
- CThere is no tinting restriction in Qatar for private vehicles.
- DExcessively dark tinting reduces driver visibility and prevents traffic officers from seeing inside the vehicle.
Answer and explanation in the bank
- Q28Heavy vehicle
What is the difference between the primary and secondary air tanks on a dual-circuit air brake system?
- AThe primary circuit serves the rear brakes and the secondary serves the front brakes; if one circuit fails the other still provides partial braking
- BThe secondary tank is a reserve that automatically recharges the primary tank if pressure drops
- CBoth tanks supply the same brake circuit; the secondary is purely a backup for the parking brake
- DThe secondary tank controls the exhaust brake independently of the service brake system
Answer and explanation in the bank
- Q29Road signs and signals
What does a sign showing a white letter H on a blue background indicate in Qatar?
- AA hotel is on this road
- BHighway interchange ahead
- CA hospital is nearby
- DHazardous goods vehicle route
Answer and explanation in the bank
- Q30Traffic rules
You are towing a trailer on an expressway. What changes about how you should drive?
- AYou need more distance to stop, so drive more slowly and leave a bigger gap
- BNothing changes as long as the trailer is empty
- CYou may use the hard shoulder to let faster traffic pass
- DYou should stay in the left lane so the trailer is easier to see
Answer and explanation in the bank
- Q31Right of way
Which of the following correctly describes a Give Way sign in Qatar?
- AAn inverted (downward-pointing) triangle, usually red and white
- BA red octagon with white lettering
- CA yellow diamond with a black border
- DA blue circle with a white arrow
Answer and explanation in the bank
- Q32Safe driving
Why should you check your mirrors every 5-8 seconds while driving on an open road?
- AQatar law requires a mirror check every 5 seconds and failing to do so is an offence
- BTo ensure the mirrors remain properly adjusted during the journey
- CBecause mirrors deteriorate in the heat and must be checked for clarity
- DTo maintain an up-to-date picture of the traffic situation around you
Answer and explanation in the bank
- Q33Penalties and fines
A driver in Qatar has applied window tint film that exceeds the legally permitted darkness level. What can they expect?
- AOnly a verbal warning if the vehicle otherwise passes its annual inspection.
- BA fine and an order to remove or replace the tint to bring it within the legal limit.
- CNo action unless the tinting makes it impossible to see the driver from outside.
- DTint darkness is unrestricted on the rear windscreen and rear side windows.
Answer and explanation in the bank
- Q34Heavy vehicle
How should a heavy vehicle driver adjust their following distance compared to a car driver in the same conditions?
- AUse the same two-second rule as car drivers
- BGreatly increase following distance to allow for the longer stopping distance of the heavy vehicle
- CReduce following distance so other vehicles do not cut in front
- DFollowing distance is irrelevant for heavy vehicles because they have more powerful brakes
Answer and explanation in the bank
- Q35Road signs and signals
You are driving on a Qatar expressway and the car in front brakes suddenly. Your following distance is very short. What is the most likely cause of an accident in this scenario, related to road sign knowledge?
- AOvertaking on the right
- BIgnoring the safe-following-distance guidance implied by speed-limit and road condition signs
- CFailing to signal a lane change
- DDriving with full headlights on
Answer and explanation in the bank
- Q36Traffic rules
Who is generally permitted to use a dedicated bus lane on a Qatar road?
- ABuses, and any other vehicle classes shown on the lane signs
- BAny vehicle when the lane appears empty
- CTaxis and buses only, never private cars
- DAll vehicles during non-peak hours
Answer and explanation in the bank
- Q37Right of way
You are in a car park and reversing out of a parking space. A pedestrian is walking across behind you. Who has priority?
- AYou, because you have already started reversing
- BYou, because pedestrians should not walk in car parks
- CNeither; it depends on who was there first
- DThe pedestrian walking in the main car park aisle
Answer and explanation in the bank
- Q38Safe driving
You are about to change lanes and your mirrors show no vehicles. What additional check must you make?
- AA shoulder check (quick glance) in the direction of the intended lane change to check the blind spot
- BSound the horn twice to warn any unseen vehicles
- CNo further check is needed if both door mirrors and the interior mirror are clear
- DCheck the instrument panel to ensure the indicator is flashing correctly
Answer and explanation in the bank
- Q39Penalties and fines
Which window on a private car in Qatar generally has the strictest tinting restriction?
- AThe front windscreen, which must allow maximum light transmission for driver visibility and officer sight lines.
- BThe rear windscreen, because reversing requires clear rear vision.
- CThe rear side windows, because passengers sit there.
- DAll windows share an identical tinting restriction with no differentiation.
Answer and explanation in the bank
- Q40Heavy vehicle
What pre-trip check should a driver perform on the truck's lights and indicators?
- ATest only the headlights and brake lights; indicators are optional on trucks
- BCheck lights once a week during a scheduled maintenance visit
- CWalk around the vehicle with a helper and confirm all headlights, tail lights, brake lights, indicators, and hazard lights are working on both the tractor and trailer
- DTurn on the headlights and look in the mirror; if you can see a reflection the rear lights are working
Answer and explanation in the bank
Every answer above, with the rule it comes from, plus the full 40-question timed test.
Get the Qatar Driving Theory Online Practice Bank - QAR 39What this test covers
Topics include road signs, traffic signals, right of way, roundabouts, speed limits, seat belts, fines and penalties, and the safe-driving rules specific to your vehicle category. Full question-by-question feedback with explanations is shown immediately after you finish the test above.
Frequently asked questions
How many questions is the Al Shamal General Directorate of Traffic truck & bus theory test?
The official General Directorate of Traffic truck & bus theory test in Al Shamal has 40 questions and you need 37 correct (92.5%) to pass. This practice test has 40 questions.
Is this the real exam?
These are practice questions to help you revise, written to the published rules and to what candidates report from the real test. They are not the official Qatar exam and the real question bank, format, fees and pass mark are set by the General Directorate of Traffic (Ministry of Interior) and the driving schools, and can change. Always confirm the current requirements with your driving school or the traffic department (for example via the Metrash service).
Is this practice test free?
The first 10 questions are free, with no signup, and each shows the answer and the reason. The full 40-question test, timed, is in the Qatar Driving Theory Online Practice Bank (QAR 39, one payment), with every question in the bank.
What does the Al Shamal 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.