Umm Salal General Directorate of Traffic - Qatar Heavy Vehicle Skills Test 2

Q: How many questions is the Umm Salal General Directorate of Traffic truck & bus theory test?

The official General Directorate of Traffic truck & bus theory test in Umm Salal has 40 questions and you need 37 correct (92.5%) to pass. This practice test has 22 questions.

Q: 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).

Q: Is this practice test free?

The first 10 questions are free, with no signup, and each shows the answer and the reason. The full 22-question test, timed, is in the Qatar Driving Theory Online Practice Bank (QAR 39, one payment), with every question in the bank.

Q: What does the Umm Salal 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

When securing a load on a flatbed truck, what is the minimum requirement regarding tie-down points?

Accepted Answer

The combined rating of all tie-down straps or chains must equal at least the total weight of the cargo being secured. Qatar and GCC load-securing rules require that the aggregate working load limit of all tie-down devices meets or exceeds the weight of the cargo. Undersecured loads can shift, fall onto other vehicles, or cause the truck to roll over in a turn. Always verify exact requirements with the General Directorate of Traffic.

Answer

One tie-down strap at each end of the load is always sufficient regardless of weight

Answer

Only fragile goods require tie-downs; dense cargo is held by gravity alone

Answer

Tie-downs are only required when travelling on highways above 100 km/h

Question 2

Where should the heaviest items be placed when loading a rigid truck to optimise stability?

Accepted Answer

As low as possible and centred over the drive axles. Placing the heaviest items low and centred over the drive axles lowers the centre of gravity, improves traction on the drive wheels, and distributes weight correctly across all axles. A high or rear-heavy load raises the centre of gravity, increases rollover risk in corners and on crosswinds, and can overload rear axles.

Answer

At the very rear of the load bed to improve steering response

Answer

As high as possible to keep them away from road spray

Answer

On the right side of the load bed to counteract the driver's weight

Question 3

A truck's front steering axle has a maximum allowed axle weight of 6 tonnes. The axle is currently carrying 7.5 tonnes. What is the most likely consequence?

Accepted Answer

Overloaded steering axle causes tyre overload, reduced steering control, and potential tyre failure. An overloaded steering axle causes the front tyres to carry more than their rated load, leading to overheating, increased wear, possible blowout, and reduced steering response. It also makes the vehicle illegal to operate. Fines, vehicle detention, and mandatory off-loading may result.

Answer

The front axle overload will automatically transfer weight rearward through the suspension

Answer

The vehicle's ABS system compensates and maintains normal steering feel

Answer

Overloading only affects fuel consumption and has no safety consequence

Question 4

Before loading a truck, where do you find the most weight it may legally carry?

Accepted Answer

On the vehicle's registration documents and the manufacturer's plate, and you must not exceed it. Each vehicle has its own permitted gross weight and axle loads, set by its design and registration. Load within them: overloading lengthens braking, overheats tyres and damages roads, and improper loads are on the fines schedule at QR 1,000 to 3,000 and 1 black point.

Answer

It is the same for every truck, 30 tonnes

Answer

There is no limit as long as the tyres are not flat

Answer

Only the driving school can tell you

Question 5

A bridge sign shows a 10-tonne maximum weight limit. Your fully loaded truck weighs 14 tonnes. What must you do?

Accepted Answer

Find an alternative route; you must not cross the bridge at your current weight. Bridge weight limits are absolute legal maximums. A 14-tonne vehicle must not cross a bridge marked with a 10-tonne limit under any circumstances. Exceeding bridge limits risks structural collapse and criminal liability. Plan routes in advance using maps that indicate restricted bridges.

Answer

Cross slowly in first gear to minimise impact force on the bridge

Answer

Cross if no other vehicles are on the bridge at the same time

Answer

The limit applies only to unladen weight, so a 14-tonne GVW is acceptable

Question 6

How should a truck driver make sure the vehicle can pass under bridges, tunnels and gantries on a route?

Accepted Answer

Know the vehicle's loaded height and compare it with the height-limit signs before reaching each structure. Height-limit signs show the clearance of the structure ahead. A driver must know the vehicle's height including the load and turn off before reaching a structure that is too low, as a strike can bring down a gantry or bridge beam onto the road.

Answer

Assume every bridge in Qatar is high enough for any truck

Answer

Drive slowly under low structures so any contact is gentle

Answer

Only check the height when carrying containers

Question 7

What action must a heavy vehicle driver take when approaching a height-restriction gantry that is lower than the vehicle's loaded height?

Accepted Answer

Stop before the gantry and find a suitable alternative route. If the vehicle's height exceeds the gantry limit, passing under it will cause a collision that can destroy the vehicle, damage the structure, and endanger lives. The driver must stop, turn around safely, and use a route without the restriction. Route planning must include checking all height restrictions before departing.

Answer

Fold any roof-mounted equipment and attempt to pass slowly

Answer

Flash headlights at oncoming traffic and proceed quickly

Answer

Sound the horn and wait for a traffic officer to guide through

Question 8

Which mirrors are most critical for a truck driver to check before making a left turn at an intersection?

Accepted Answer

The left-side wide-angle (convex) and close-proximity mirrors to check for cyclists, motorcyclists, and pedestrians in the blind zone. The left side of a large truck has a significant blind zone that the interior mirror cannot cover. The left-side convex and close-proximity mirrors must be checked before and during a left turn to detect cyclists, motorbikes, and pedestrians who may be hidden alongside or just ahead of the cab. Failing to check these mirrors is a leading cause of serious collisions at junctions.

Answer

Only the interior rear-view mirror

Answer

The right-side mirror only, because left turns are away from oncoming traffic

Answer

No mirror check is needed; indicators give other road users sufficient warning

Question 9

Why does a fully loaded heavy truck need a much longer stopping distance than a car travelling at the same speed?

Accepted Answer

Greater mass means greater kinetic energy, so more distance is needed to dissipate that energy through braking. A fully loaded truck requires a much longer stopping distance because its greater mass means far more kinetic energy must be absorbed. Even with powerful brakes, physics demands more distance to bring that energy to zero. Always increase your following distance significantly when loaded.

Answer

Heavy trucks have weaker brakes that are not designed for fast stops

Answer

The larger tyres create less friction with the road surface

Answer

Heavy trucks must follow a slower braking schedule to avoid damaging the cargo

Question 10

How does brake fade affect a heavy vehicle descending a long steep hill?

Accepted Answer

Repeated hard braking overheats the brake drums or discs, reducing friction and extending stopping distances. Brake fade occurs when continuous braking generates heat that reduces friction between the brake lining and drum or disc. On a long descent this can make the vehicle nearly impossible to stop. The correct technique is to select a low gear before the descent and use engine braking to control speed, applying brakes only briefly if needed.

Answer

Brake fade only affects motorcycles; heavy vehicles use air brakes that are immune

Answer

Brake fade increases braking power by expanding the brake shoes against the drum

Answer

Brake fade causes the air pressure gauge to drop below the safe operating level immediately

Umm Salal General Directorate of Traffic - Qatar Heavy Vehicle Skills Test 2

The other 12 questions in this test

What this test covers

Frequently asked questions

Qatar driving test guides