DGT C1 licence questions: Safe loading

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A lorry over 3,500 kg MAM follows another vehicle without signalling an intention to overtake. In which situation does the additional…
A lorry has a non-driven front steering axle and a single rear drive axle. Which axle contains the half-shafts that transmit drive from the…
A rigid four-axle lorry with conventional diesel propulsion is not carrying roundwood or operating under a special authorisation. None of…
How should the load that has to be transported be stowed?
During an ordinary loading or unloading operation, what rule applies to where you deposit the goods?
An ordinary trailer or semi-trailer has a MAM no greater than 750 kg. Does it need its own traffic-authority registration to be used on the…
A lead-acid battery with accessible cell caps permits water top-ups under its manufacturer’s instructions. What maintenance should be…
The figure indicating the load index fitted to an industrial vehicle consists of two numbers separated by a slash, for example: 150/146.…
The maximum permitted mass for a single non-driven axle is…
By definition, an open-bodied goods vehicle is a:
You park a 4,000 kg MAM lorry on a significant downhill slope and will leave the driving position. Other required measures are already…
What is the function of the drain valves on a pneumatic brake system’s compressed-air reservoirs?
When replacing a blown fuse with another one, what must be considered primarily?
You park a 6,000 kg MAM lorry with a manual gearbox on a 10% slope and will leave the driving position. You have already stopped the…
Under the general dimensions-table limit, what is the maximum length including load of an ordinary road train, excluding 45-foot intermodal…
What is the name given to the set of components fitted between the wheel axles and the bodywork or, where applicable, the chassis?
During a manufacturer-specified check, the lorry is stationary, the engine is off and the brake is not being operated. What may indicate an…
After immobilising a 5,500 kg MAM lorry on a significant uphill gradient, the driver leaves the seat. In addition to the parking brake and…
An adult drives a goods vehicle with a MAM exceeding 3,500 kg. Under RGC Article 20, what breath alcohol level must the driver not exceed?
What is the purpose of the bleeder in a hydraulic braking circuit?
For goods vehicles other than tractor units, which two thresholds does the Ministry of Transport Road Transport Observatory (2026) use to…
When loading or unloading goods on a public road is unavoidable, may the goods be deposited on the carriageway, shoulder or pedestrian…
How far may the divisible load on your lorry overhang, as a general rule?
To drive a C1 or C truck safely, it is advisable to keep especially clean:
In ordinary driving, without special authorisation to use the shoulder or an officer’s instructions, may a lorry exceeding 3,500 kg MAM use…
In a truck, the load should be placed:
Under the general Vehicle Regulations limit, what maximum mass is permitted on a lorry’s single non-driving axle, subject to lower…
A lorry subject to the general 4-metre height limit, with no applicable exception or special authorisation, already measures 4 metres…
Under the Land Transport Organisation Act, road transport is public when it is performed...
Under Spain’s vehicle-use classification, a vehicle carries goods in a fully enclosed compartment, with no padding or special interior…
What is the term for the actual mass of the vehicle and its load, including passengers?
Driving a C1 or C truck with poorly adjusted mirrors:
If you drive a lorry measuring 6 metres in length and intend to transport indivisible beams on it, you should know that you may do so…
By definition, a gondola motor vehicle is a:
For a conventional two-axle rigid lorry, without alternative-fuel or zero-emission technology increments or special authorisations, what is…
A lorry with a MAM of 7,000 kg, not carrying dangerous goods, travels on a dual carriageway outside a built-up area with no lower specific…
A lorry whose loading platform has a reduced height is the definition of which type of motor vehicle:
As a general rule, outside specific regulatory exceptions, what is the maximum authorised length, including its load, of a four-axle rigid…
When the load being carried may produce dust, is it compulsory to cover the lorry's body effectively?
An N2 lorry with a MAM of 10,000 kg, first registered on or after 1 January 2005, is used on public roads and falls within no regulatory…
An N2 lorry with a MAM of 12,000 kg, first registered on or after 1 January 2005, is used on public roads and falls within no regulatory…
In a conventional lead-acid battery with vented caps, what is the function of these holes?
Drivers of goods vehicles with a Maximum Authorised Mass (MAM) exceeding 3,500 kg must not drive with a blood alcohol level higher than...
An adult driver with more than two years of licence experience drives a lorry with a MAM below 3,500 kg for ordinary goods transport,…
In a conventional charging system with a working warning lamp, the lamp illuminates at ignition-on and goes out after starting. What does…
As a general rule, what is the maximum width, including the load, permitted for lorries to be driven on the road?
Coolant is found entering the oil in a liquid-cooled engine. Which of these internal faults can allow that mixing?
What maximum-mass range defines international category N2 for motor vehicles designed and constructed primarily to carry goods?
In the European N1, N2 and N3 type-approval classification for goods vehicles, which category corresponds to the term “semi-heavy”?
A lorry with a MAM exceeding 3,500 kg travels through an underpass without intending to overtake. What specific minimum separation from the…
Under the general table in Annex IX, what is the maximum authorised mass of a two-axle rigid lorry without alternative-fuel, zero-emission…
On a road within a built-up area, are you allowed to double-park in order to unload the lorry you are driving?
A lorry in which goods are transported in a receptacle open at the top is the definition of a motor vehicle that is:
Under current Annex IX, compare an articulated vehicle with a two-axle motor vehicle and three-axle semi-trailer with a road train with a…
A motor vehicle with four wheels or more, designed and built for the transport of goods, which has a cab not integrated with the rest of…
A six-metre lorry used exclusively for goods transport carries indivisible-length tubes, complying with stowage and securing requirements.…
Under current Annex IX Table 1, what is the maximum authorised mass for a motor vehicle’s tandem axle if the distance between the centres…
The manufacturer permits jump-starting a negative-earth vehicle using a source of the same nominal voltage and the specified connection…
An ordinary seven-metre rigid lorry used exclusively for goods carries indivisible-length concrete beams. Outside the special-transport…
In a lorry with correctly functioning air suspension and automatic height control, what does the system do when load changes within its…
Where should loading and unloading operations generally take place?
A 7-metre lorry used exclusively for goods will carry an indivisible 9-metre beam. Mass limits, other dimensions, stowage and required…
In order to unload the lorry you are driving as quickly as possible, may you place the goods on the carriageway?
After drinking a large amount of alcohol, does strong coffee or a half-hour nap reliably restore driving ability quickly?
Under the current general regulatory limit, what is the maximum permitted mass on a single driven axle of a lorry?
A lorry not carrying dangerous goods travels on a town crossing (travesía), with no lower specific limit. What is its general maximum speed?
A Silo-type motor vehicle is defined as a:
As a general rule, what maximum height may your lorry reach in order to travel legally?
Which description corresponds to the regulatory definition of a lorry?
If I am driving a lorry with a maximum authorised mass (MAM) of more than 3,500 kg, I should know that the driver’s maximum permitted…
In an engine’s liquid-cooling system, what is the radiator’s main function?
A lorry designed specifically for transporting solid, powdered or granular materials in an enclosed tank, with or without auxiliary means…
When should tyre pressure be measured to compare it with the recommended cold pressure for the load and operating conditions?
On a truck, the load must be placed and secured so that it:
In the brakes’ compressed-air supply, what is the purpose of the discharge valve that limits maximum pressure?
As a general rule, excluding special increases, what maximum authorised mass does the Annex IX table allow for a three-axle lorry whose…
On a two-wheel-drive vehicle with one driven axle, whose manufacturer permits the chosen snow chains, which wheels receive them when their…
What is the function of the power steering system?
Which rule must be observed when loading or unloading?
What is the drain valve (bleed valve) for in the pneumatic braking circuit?
A three-axle lorry has a drive axle fitted with twin tyres and air suspension. Under the current general Annex IX table, without…
Which instrument measures the pressure in the lubrication circuit?
A three-axle rigid lorry has dual tyres and air suspension on its driven axle. Without alternative-fuel or zero-emission technology…
A lorry in which the goods are transported on a flat surface with no side protection is the definition of which type of motor vehicle:
In a truck, a correctly placed load must not:
In a conventional liquid-cooling circuit, with the thermostat open to cool the engine, between which main components does the pump…
A lorry pulls to one side only when braking. What functional imbalance could explain this behaviour and requires inspection?
A truck load must be placed and secured so that it:
When the additional 50-metre gap under Article 54(2) applies to vehicles with MAM above 3,500 kg or total length above ten metres that do…
If you are driving a lorry, must you know how to position and secure the load?
Between a tyre with the nomenclature 295/80 R22’5 150-146 N and another 295/80 R22’5 150-146 M, what difference can we find?
A 7-metre rigid lorry will carry indivisible concrete beams without a special-transport authorisation. Which statement about length and…
If I am driving a 3-axle lorry that is 12 metres long, I should know that, as a general rule, the load:
An ordinary rigid lorry, without a trailer or special authorisation, travels loaded. What is its regulatory maximum length, measured…
Under the general table in Annex IX, what is the maximum authorised mass of a two-axle rigid lorry without alternative-fuel, zero-emission…
A company whose main purpose is not transport carries out transport as a necessary or appropriate complement to its main activity and meets…
On an ordinary lorry with two single axles, what is the general axle-mass limit for the non-driven axle, subject to any lower technical…
On a truck, the load must be distributed so that:
Is a van by definition a light vehicle?
You park a 6,000 kg MAM lorry with a manual gearbox on an 8% uphill slope and will leave the driving position. The parking brake is applied…