اجتياز الامتحان بسهولة مع اختبارات الممارسة المتميزة | فتح كل شيء مع خطة 7 أيام 
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Truck, Semi-Trailer Test
01/30
1.What is generally considered the gross vehicle weight threshold for a heavy truck in Qatar?
A heavy truck typically exceeds 5,000 kg GVWR (Gross Vehicle Weight Rating), requiring special classification and license.
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Truck, Semi-Trailer Test
02/30
2.How is a light truck typically classified in Qatar?
Light trucks are vehicles with a gross vehicle weight below 3,500 kg, used for small-scale delivery or personal goods.
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Truck, Semi-Trailer Test
03/30
3.What component is used to distribute the load in multi-axle trucks?
Axles are critical for bearing and distributing vehicle load across wheels, especially in heavy trucks.
03/30
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Truck, Semi-Trailer Test
04/30
4.Why are more axles used on heavier vehicles?
More axles help distribute load evenly, protecting road surfaces and improving braking stability.
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Truck, Semi-Trailer Test
05/30
5.Which of the following best describes a tractor-trailer unit?
A tractor-trailer refers to a truck (tractor) towing a semi-trailer, often used for long-haul transport.
05/30
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Truck, Semi-Trailer Test
06/30
6.What happens when a heavy vehicle exceeds axle load limits?
Exceeding axle limits causes premature road wear and increases the risk of brake or tire failure.
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Truck, Semi-Trailer Test
07/30
7.What license class is generally required to operate a heavy truck in Qatar?
Heavy trucks require special license classes such as C or D for operation, depending on configuration.
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Truck, Semi-Trailer Test
08/30
8.What type of vehicle usually requires weighbridge checks in Qatar?
Weighbridges are used to verify axle and total load weight of commercial trucks for regulatory compliance.
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Truck, Semi-Trailer Test
09/30
9.Which of the following is a valid reason to classify a truck as commercial?
A commercial vehicle is defined by its purpose-transporting goods or materials for business-related operations.
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Truck, Semi-Trailer Test
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10.What does GVWR stand for in truck classification?
GVWR is the total weight of a vehicle plus maximum cargo it can safely carry, and is key in classifying trucks.
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Truck, Semi-Trailer Test
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11.What is the implication of using an overloaded light truck?
Overloading affects braking, suspension, and increases the chance of tire blowouts or rollovers.
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Truck, Semi-Trailer Test
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12.What type of cargo typically requires a permit for transport in heavy vehicles?
Transporting flammable, toxic, or chemical materials requires special permits and safety protocols.
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Truck, Semi-Trailer Test
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13.What is a key safety requirement for operating heavy trucks on highways?
Air brakes are required for reliable stopping power in heavy trucks, especially under full load.
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Truck, Semi-Trailer Test
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14.What is the main purpose of regulating axle loads in Qatar?
Overloaded axles damage asphalt, causing potholes and ruts, and compromise safety.
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Truck, Semi-Trailer Test
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15.How is a multi-axle truck different from a single-axle truck?
Multiple axles reduce strain per axle, which helps manage heavy loads legally and safely.
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Truck, Semi-Trailer Test
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16.What is typically prohibited in the load area of commercial trucks?
Carrying people in the cargo area is unsafe and illegal under commercial vehicle rules.
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Truck, Semi-Trailer Test
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17.How should cargo be secured in open-bed trucks?
Securing cargo prevents shifting during transit and protects other road users from falling objects.
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Truck, Semi-Trailer Test
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18.What vehicle class does a pickup truck transporting company goods fall under?
A pickup truck used for delivery or company use is classified as a light commercial vehicle.
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Truck, Semi-Trailer Test
019/30
19.What determines the maximum legal load for a truck?
Legal limits consider manufacturer ratings and Qatar traffic regulations for safety.
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Truck, Semi-Trailer Test
020/30
20.What is required for driving articulated trucks in Qatar?
Articulated trucks need specific training and a heavy-vehicle category license under Qatari law.
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Truck, Semi-Trailer Test
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21.What happens if a truck exceeds the maximum height allowed on a Qatar road?
Height restrictions are enforced to avoid bridge strikes and tunnel collisions, which are dangerous.
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Truck, Semi-Trailer Test
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22.How does Qatar regulate the weight of commercial trucks?
Trucks are weighed and classified at designated checkpoints to enforce axle and load compliance.
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Truck, Semi-Trailer Test
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23.Which vehicle is most likely to need a transport permit in Qatar?
Trucks carrying oversized or wide equipment require special permits to ensure route and timing safety.
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Truck, Semi-Trailer Test
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24.What is the role of a tag axle in heavy vehicles?
A tag axle supports the rear section, balancing load distribution and improving braking efficiency.
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Truck, Semi-Trailer Test
025/30
25.What color number plate typically identifies a commercial heavy vehicle in Qatar?
Commercial heavy vehicles in Qatar typically have red plates with white characters, distinguishing them from private and government vehicles.
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Truck, Semi-Trailer Test
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26.Why must heavy truck drivers inspect tires daily?
Daily tire inspections help detect wear or pressure loss that could cause dangerous blowouts on highways.
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Truck, Semi-Trailer Test
027/30
27.Which of the following is NOT a criterion for classifying vehicles?
Vehicle classification is based on technical aspects like load, axles, and size-not aesthetic features.
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Truck, Semi-Trailer Test
028/30
28.What is a key difference between rigid and articulated trucks?
Articulated trucks have detachable trailers, while rigid trucks have one fixed body structure.
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Truck, Semi-Trailer Test
029/30
29.What purpose do underride guards serve on trucks?
Underride guards prevent cars from sliding under the rear of a truck during a crash, saving lives.
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