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Cameroon Heavy-Vehicle Theory study materials
Cameroon Heavy-Vehicle Theory study resources

Cameroon Heavy-Vehicle Theory practice questions

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Question 1Road Signs, Signals and Road Markings

On a Cameroonian road, a circular sign with a red border and a black symbol inside generally conveys which type of message?

  1. An indication of a service available nearby
  2. A mandatory direction that drivers must follow
  3. A warning of a hazard ahead
  4. A prohibition or restriction that drivers must obey Correct answer.

Explanation

In Cameroon the circular red-bordered sign family is used for prohibitions and restrictions, such as speed limits or no-entry rules. The red ring signals that an action is forbidden or limited rather than advised. Mandatory instructions are shown on blue circular signs, so the colour and shape together identify the sign's function.

Question 2Road Signs, Signals and Road Markings

A heavy lorry approaches a triangular sign with a red border showing a steep downhill gradient. What does this sign require the driver to anticipate?

  1. A sharp bend immediately after the crest
  2. A tunnel with restricted height ahead
  3. A junction where the lorry has priority
  4. A descent where speed must be controlled, often using a low gear Correct answer.

Explanation

Triangular red-bordered signs warn of hazards ahead, and the gradient symbol specifically announces a steep descent. For a heavy vehicle the correct response is to select an appropriate low gear and control speed before the slope begins. Relying on brakes alone on a long descent risks overheating and brake fade.

Question 3Road Signs, Signals and Road Markings

What is the meaning of a solid continuous white line along the centre of a two-way carriageway?

  1. Parking is allowed on the line at night
  2. The line marks a bus-only lane boundary
  3. No vehicle may cross or straddle the line Correct answer.
  4. Overtaking is permitted if the road ahead is clear

Explanation

A continuous centre line forbids crossing or straddling it, so overtaking that requires moving into the opposing lane is prohibited. The restriction protects against head-on collisions where visibility or road layout makes overtaking unsafe. A broken line, by contrast, permits crossing when it is safe.

Question 4Road Signs, Signals and Road Markings

A traffic officer controlling an intersection raises an arm vertically with the palm facing traffic. In Cameroon, what should approaching drivers do?

  1. Proceed because the gesture signals them forward
  2. Sound the horn and continue slowly
  3. Reverse to clear the junction
  4. Stop, as the raised palm signals traffic to halt Correct answer.

Explanation

A raised hand or arm with the palm toward approaching traffic is a stop signal from an authorised officer. Officer signals override traffic lights and signs, so drivers must obey the gesture immediately. Continuing would breach the direction of the officer controlling the junction.

Question 5Road Signs, Signals and Road Markings

At a signalised junction the traffic light shows a steady red circle while a green arrow pointing left is also illuminated. What does this combination permit?

  1. Proceed straight ahead only
  2. Wait until the full circle turns green before moving
  3. Proceed in the direction of the green arrow, yielding to other traffic Correct answer.
  4. Proceed in any direction because one green light is showing

Explanation

A green arrow authorises movement only in the direction it points, even when the main circle is red. Traffic moving on the arrow must still give way to pedestrians and to vehicles already lawfully in the junction. Movement in other directions remains prohibited by the red circle.

Question 6Road Signs, Signals and Road Markings

A driver sees a red circle containing a white horizontal bar on a one-way street entrance. What does this sign mean?

  1. Stop and give way before entering
  2. Road closed only to heavy vehicles
  3. No entry for vehicular traffic Correct answer.
  4. One-way traffic in the direction of travel

Explanation

The red circle with a white horizontal bar is the no-entry sign, barring vehicles from entering that road. It is commonly placed at the exit end of a one-way street to prevent wrong-way movement. Heavy vehicles are not singled out, and the sign does not ask drivers to stop and give way.

Question 7Road Signs, Signals and Road Markings

What does a yellow box junction marking painted on the carriageway require a heavy-vehicle driver to do?

  1. Use the box as a loading zone when delivering goods
  2. Stop inside the box to wait for the lights to change
  3. Keep the box clear only during peak hours
  4. Enter the box only if the exit is clear, except when turning right Correct answer.

Explanation

A yellow box junction must not be blocked, so a driver may enter only when the exit is clear. The usual exception allows a right-turning vehicle to wait in the box for a gap in oncoming traffic. Stopping in the box otherwise obstructs cross traffic and is an offence.

Question 8Road Signs, Signals and Road Markings

A blue circular sign shows a white arrow curving to the right. What instruction does this give a lorry driver?

  1. Right-turning traffic must give way
  2. A right bend is dangerous at speed
  3. You must turn right at the junction Correct answer.
  4. A right turn is prohibited ahead

Explanation

Blue circular signs give mandatory instructions, and a white arrow on blue directs traffic in the direction shown. Here the driver must turn right rather than choose freely. Prohibitions and hazard warnings use red borders, not blue circles.

Question 9Road Signs, Signals and Road Markings

On a road where a broken white centre line changes to a continuous line on the driver's side, what does this tell the overtaking lorry driver?

  1. The line marks the edge of a parking bay
  2. Overtaking is allowed because the line was broken earlier
  3. The driver must not cross the line to overtake from this side Correct answer.
  4. The driver may cross the line to overtake if no traffic is visible

Explanation

Where a broken line runs alongside a continuous line, the continuous line applies to the side on which it is painted. A driver with the continuous line on their side may not cross it to overtake. The broken line permits crossing only for traffic on the opposite side.

Question 10Road Signs, Signals and Road Markings

A circular sign shows a red border around the number 60 with a lorry symbol below it. What does this sign impose?

  1. A maximum speed of 60 km/h for lorries Correct answer.
  2. A minimum speed of 60 km/h for lorries
  3. A weight limit of 60 tonnes
  4. A distance of 60 metres to the next junction

Explanation

A red-ringed circle containing a number is a speed limit, and the lorry symbol restricts that limit to goods vehicles. The figure is a maximum, not a minimum. Minimum speed limits use blue circular signs with white figures.

Question 11Road Signs, Signals and Road Markings

A driver approaching a flashing red light at a level crossing in Cameroon should treat it as which instruction?

  1. Slow down and sound the horn before crossing
  2. Stop and remain stopped until the lights stop flashing Correct answer.
  3. Proceed with caution if no train is visible
  4. Ignore it if the barrier is raised

Explanation

Flashing red lights at a level crossing command drivers to stop and stay stopped, because a train is approaching or the crossing is activating. A raised barrier does not cancel the signal. Proceeding on the assumption that no train is visible is a common cause of fatal collisions.

Question 12Road Signs, Signals and Road Markings

What does a white arrow painted on the road surface inside a traffic lane indicate?

  1. The lane may be used for parking ahead
  2. A pedestrian crossing is about to begin
  3. The direction traffic in that lane must follow Correct answer.
  4. The point where overtaking becomes legal

Explanation

Lane arrows painted on the carriageway tell drivers the direction of travel for that lane, such as straight ahead or a turn. They help position vehicles before a junction so movements do not conflict. They do not create parking rights or change overtaking rules.

Question 13Road Signs, Signals and Road Markings

A lorry driver sees a triangular sign depicting a lorry on a slope with the figure 10%. How should this affect driving on the descent?

  1. Switch off the engine to save fuel on the slope
  2. Increase speed to carry momentum up the next hill
  3. Engage a low gear before the descent and control speed Correct answer.
  4. Rely on the footbrake continuously down the slope

Explanation

The sign warns of a steep 10% descent, so the safe technique is to select a low gear before the slope and let engine braking assist. Continuous footbrake use on a long descent overheats the brakes and can cause failure. Coasting with the engine off removes engine braking and power assistance.

Question 14Road Signs, Signals and Road Markings

A sign shows a red circle containing a black lorry symbol with a red diagonal bar. What does it mean for the driver of a heavy goods vehicle?

  1. Lorries must reduce speed to 30 km/h
  2. Lorries must use the left lane
  3. Lorries may proceed only with a police escort
  4. Lorries are prohibited from proceeding beyond the sign Correct answer.

Explanation

A red-ringed circle with a vehicle symbol and a diagonal bar is a prohibition sign banning that class of vehicle. For a lorry driver it means the route ahead is closed to goods vehicles. The driver must find an alternative route rather than continue.

Question 15Road Signs, Signals and Road Markings

At a junction controlled by traffic lights, the amber light appears after green. What is the correct response for a loaded lorry?

  1. Reverse out of the junction if already past the line
  2. Stop unless it is unsafe to do so, because the vehicle is too close to stop safely Correct answer.
  3. Accelerate hard to clear the junction before red
  4. Continue at the same speed and ignore the change

Explanation

Amber means stop, but a vehicle already so close to the line that stopping would be dangerous may continue. A loaded lorry has a long stopping distance, so the driver must judge this carefully rather than accelerate. Reversing in a junction is prohibited and dangerous.

Question 16Road Signs, Signals and Road Markings

What is indicated by a broken yellow line painted along the edge of the carriageway?

  1. A lane reserved for overtaking
  2. A permanent ban on stopping at any time
  3. The boundary of a cycle lane
  4. A stopping restriction that applies at certain times Correct answer.

Explanation

Broken yellow edge lines mark a stopping restriction that operates only during the times shown on nearby signs or plates. A continuous yellow line, by contrast, imposes a permanent restriction. Drivers must check the accompanying sign to know when the rule applies.

Question 17Road Signs, Signals and Road Markings

A driver sees a sign showing a red-bordered triangle with a symbol of two children. What should the driver do?

  1. Change lanes to the right without checking
  2. Reduce speed and watch for children near a school or playground Correct answer.
  3. Sound the horn continuously through the area
  4. Stop immediately and wait for a guard

Explanation

The children symbol is a warning of a school or playground where children may enter the road unexpectedly. The correct response is to slow down and increase vigilance, being ready to stop. It does not require a full stop unless a guard or signal directs one.

Question 18Road Signs, Signals and Road Markings

A traffic warden stands at a junction with the right arm extended horizontally and the left arm lowered. For traffic approaching from the front, what does this signal mean?

  1. Traffic from behind the officer must stop
  2. Traffic from the right must reverse
  3. Traffic from the front must stop Correct answer.
  4. Traffic from the front may proceed

Explanation

When an officer extends an arm toward approaching traffic, that traffic is required to stop. The officer's signals take precedence over lights and signs at the junction. Drivers approaching from the front must halt until the officer releases them.

Question 19Road Signs, Signals and Road Markings

What does a rectangular blue sign with a white 'P' and a lorry symbol indicate?

  1. A parking area is available for lorries Correct answer.
  2. Parking is prohibited for lorries
  3. A police checkpoint for lorries
  4. A weighbridge for lorries ahead

Explanation

Rectangular blue signs provide information or indicate facilities, and a white 'P' denotes parking. The lorry symbol shows the facility is intended for goods vehicles. A prohibition would instead use a red-ringed sign with a diagonal bar.

Question 20Road Signs, Signals and Road Markings

On a dual carriageway, a driver sees a central reservation marked with a continuous double white line. What does this mean for a lorry wishing to make a U-turn?

  1. A U-turn is permitted if the road is clear
  2. The double line prohibits crossing, so a U-turn is not allowed there Correct answer.
  3. A U-turn is allowed only at night
  4. A U-turn is allowed if the lorry uses its hazard lights

Explanation

Continuous double white lines along a central reservation prohibit crossing them, so a U-turn at that point is unlawful. The restriction exists because turning across a high-speed carriageway is extremely hazardous. Drivers must continue to a designated turning point or junction.

Question 21Road Signs, Signals and Road Markings

A circular sign with a red border shows a black car and a black motorcycle side by side. What does this sign convey?

  1. Motor vehicles are prohibited beyond the sign Correct answer.
  2. Motorcycles must use the left lane
  3. Overtaking by motor vehicles is prohibited
  4. Cars and motorcycles must stop ahead

Explanation

A red-ringed circle with vehicle symbols and no diagonal bar is a prohibition on those vehicles proceeding beyond the sign. When the sign bars motor vehicles generally, cars and motorcycles are both included. The driver must not continue past it.

Question 22Road Signs, Signals and Road Markings

What is the purpose of a hatched white area bordered by a continuous white line in the centre of the road?

  1. A designated parking zone for heavy vehicles
  2. An area that vehicles must not enter except in an emergency Correct answer.
  3. A pedestrian refuge where vehicles may stop
  4. A lane where overtaking is encouraged

Explanation

Hatched areas bordered by a continuous line separate opposing streams of traffic and must not be entered except in an emergency. They often appear where the road widens before a junction. Using the area to overtake or park is prohibited and reduces safety margins.

Question 23Road Signs, Signals and Road Markings

A driver approaches a sign showing a red-bordered triangle with a symbol of a falling rock. What is the appropriate action for a heavy vehicle?

  1. Move to the centre of the road and accelerate
  2. Reduce speed, watch the slope and be ready to stop for debris Correct answer.
  3. Stop and wait for a road crew to clear the road
  4. Maintain speed to pass the area quickly

Explanation

The falling-rock symbol warns of rockfall from a slope beside the road. The safe response is to reduce speed, keep a careful watch and be prepared to stop for debris on the carriageway. Maintaining speed through such a zone reduces reaction time if rocks are present.

Question 24Road Signs, Signals and Road Markings

At a junction, a driver sees a red light with a green filter arrow pointing straight ahead while the driver intends to turn right. What must the driver do?

  1. Turn right after sounding the horn
  2. Turn right if no vehicle is approaching from the left
  3. Turn right because a green light is showing
  4. Wait, because the arrow authorises only straight-ahead movement Correct answer.

Explanation

A green filter arrow releases only the movement it indicates, so straight-ahead traffic may proceed while a right turn remains prohibited. The driver intending to turn right must wait for a signal authorising that movement. Turning on the strength of another direction's green arrow would be a signal offence.

Question 25Road Signs, Signals and Road Markings

What does a stop line painted across the carriageway in front of a STOP sign require?

  1. A driver must stop beyond the line to see clearly
  2. A driver may roll over the line if the road is clear
  3. A driver must stop at or before the line on every approach Correct answer.
  4. A driver must stop only when another vehicle is visible

Explanation

The stop line marks the point where a vehicle must halt at a STOP sign, and the stop is required on every approach regardless of traffic. Stopping at the line ensures the driver can see and be seen before entering the junction. Crossing the line before stopping defeats its purpose.

Question 26Road Signs, Signals and Road Markings

A driver approaches a sign showing a red-bordered triangle with a symbol of a humpback bridge or uneven road surface. What action should the heavy-vehicle driver take?

  1. Maintain speed because the warning applies only to light vehicles
  2. Reduce speed and be prepared for a sudden change in road level Correct answer.
  3. Sound the horn continuously until clear of the structure
  4. Stop immediately before the bridge and wait for a signal

Explanation

Red-bordered triangular signs are warning signs, and this one warns of an uneven or humped surface ahead. A loaded lorry has a high centre of gravity, so reducing speed before the hazard limits suspension bounce and load shift. The warning applies to all vehicles, not only light ones.

Question 27Road Signs, Signals and Road Markings

A driver sees a circular blue sign showing a white bicycle symbol. What does this sign require of the driver of a heavy goods vehicle?

  1. A parking area designated for bicycles only
  2. A compulsory cycle route that lorries may also use
  3. A warning that cyclists may be crossing ahead
  4. A route reserved for cyclists that lorries must not enter Correct answer.

Explanation

Blue circular signs give mandatory instructions, and a bicycle symbol means the route is reserved for cyclists. Heavy vehicles must not enter such a route. A warning about crossing cyclists would use a red-bordered triangle instead.

Question 28Road Signs, Signals and Road Markings

At a crossroads the traffic lights are out of order and a police officer faces the driver with the right arm raised vertically and the palm towards the driver. What must the driver do?

  1. Proceed through the junction without delay
  2. Turn right in front of the officer
  3. Stop and remain stopped until the signal changes Correct answer.
  4. Reverse out of the junction to clear it

Explanation

A raised arm with the palm facing approaching traffic is the manual signal to stop. The officer's signals override the traffic lights and any road markings. The driver must stay stopped until the officer gives a different signal.

Question 29Road Signs, Signals and Road Markings

A driver sees a rectangular white sign with a black diagonal stripe running from top left to bottom right. What does this sign indicate?

  1. A compulsory direction of travel to the right
  2. A pedestrian zone where loading is permitted
  3. The end of all previously signed restrictions Correct answer.
  4. The start of a restricted parking zone

Explanation

The white rectangle with a single black diagonal bar is the sign that cancels earlier prohibitions, such as a speed limit or an overtaking ban. Drivers may then revert to the national default rules for that road. It does not itself impose a new restriction.

Question 30Road Signs, Signals and Road Markings

A lorry driver approaches a junction where the traffic lights show a green arrow pointing left while the main aspect is red. The driver intends to go straight on. What is the correct action?

  1. Wait at the stop line until the main aspect shows green Correct answer.
  2. Proceed straight on because any green light authorises movement
  3. Proceed straight on after sounding the horn
  4. Move into the left-turn lane and then continue straight

Explanation

A green filter arrow authorises movement only in the direction the arrow points. Because the main aspect is red, traffic going straight ahead must remain behind the stop line. Treating any green as permission for all directions is a common and dangerous error.

Question 31Road Signs, Signals and Road Markings

On a three-lane carriageway in the same direction, the lane markings between the left and middle lanes are long dashes with short gaps, while those between the middle and right lanes are short dashes with long gaps. What do these markings tell a lorry driver?

  1. The right-hand boundary discourages lane changing more strongly than the left Correct answer.
  2. The markings indicate a bus lane on the right
  3. Both lane boundaries carry identical lane-change rules
  4. The left-hand boundary is a hard barrier that cannot be crossed

Explanation

Hazard warning lines use longer dashes and shorter gaps where crossing is more dangerous, and shorter dashes with longer gaps where crossing is less hazardous. The boundary nearer the opposing or faster traffic therefore discourages lane changes more strongly. The driver should read the pattern as a graded warning rather than a uniform permission.

Question 32Road Signs, Signals and Road Markings

A heavy-vehicle driver sees a red-bordered circular sign showing a black lorry above a black car, with a red diagonal bar across the whole sign. What does this sign mean?

  1. No entry for goods vehicles and cars together
  2. Overtaking by goods vehicles is prohibited
  3. End of the lorry overtaking ban
  4. No overtaking for any vehicle Correct answer.

Explanation

A red circle with a diagonal bar is a prohibition sign, and the two vehicle symbols together mean no overtaking applies to all motor vehicles. A ban aimed only at lorries would show a single lorry symbol. The driver must stay in lane behind the vehicle ahead until the restriction ends.

Question 33Road Signs, Signals and Road Markings

A driver is following a continuous white line on the left edge of the carriageway and sees a broken white line begin. What does the change indicate about the edge of the carriageway?

  1. Parking on the verge is now compulsory
  2. A cycle lane starts immediately to the left
  3. The road becomes a one-way street
  4. The hard shoulder has ended and a running lane begins Correct answer.

Explanation

A continuous edge line marks the boundary of the carriageway, and a broken edge line marks the start of a lane or the end of a hard shoulder. The driver should treat the broken section as part of the running surface. Heavy vehicles should not drift onto a hard shoulder except in an emergency.

Question 34Road Signs, Signals and Road Markings

A driver approaches a junction and sees a broken white line across the mouth of a side road, together with a triangular give-way sign. What does the broken line require?

  1. Give way to traffic on the major road and proceed only when clear Correct answer.
  2. Stop completely before entering the major road
  3. Wait for a green signal before emerging
  4. Accelerate to merge ahead of approaching traffic

Explanation

A broken transverse line at a junction marks a give-way point, supported by the inverted triangular sign. The driver must yield to traffic on the road being joined and emerge only when it is safe. A full stop is required only where a solid stop line and STOP sign are present.

Question 35Road Signs, Signals and Road Markings

A driver sees a blue circular sign showing a white arrow pointing straight ahead with a red diagonal bar through it. What does this combination mean?

  1. The road ahead is a dead end
  2. Straight ahead is compulsory
  3. Straight ahead is prohibited Correct answer.
  4. The one-way system ends ahead

Explanation

Blue circles give mandatory instructions, and a red diagonal bar cancels the direction shown, so the arrow with a bar means straight ahead is prohibited. The driver must turn left or right as permitted. A plain white arrow without the bar would make straight ahead compulsory.

Question 36Road Signs, Signals and Road Markings

A driver sees a yellow diamond-shaped marking painted on the carriageway with a white border, located just before a pedestrian crossing. What is the purpose of this marking?

  1. To indicate a bus stop clearway
  2. To mark a lane reserved for overtaking
  3. To warn drivers that they are approaching a crossing and should be ready to stop Correct answer.
  4. To reserve the area for loading goods vehicles

Explanation

Yellow diamond markings placed in advance of a pedestrian crossing warn drivers that a crossing is ahead. They prompt the driver to check mirrors, reduce speed and prepare to stop for pedestrians. They do not reserve the area for any class of vehicle.

Question 37Road Signs, Signals and Road Markings

A driver sees a sign with a red border showing a black steam train symbol without any bar. What does this sign warn of?

  1. A heritage railway station where vehicles may park
  2. A tram stop on the carriageway
  3. A tunnel entrance with restricted height
  4. A railway level crossing without a barrier or gate ahead Correct answer.

Explanation

A red-bordered triangle with a train symbol warns of a railway level crossing ahead; the version without a gate or barrier symbol warns of an unguarded crossing. The driver should reduce speed, be ready to stop and check for trains. A guarded crossing uses a sign showing a gate or barrier.

Question 38Road Signs, Signals and Road Markings

A lorry driver is in a lane marked with a white bicycle symbol and a solid white line on the right, and the lane is bounded by a broken white line on the left. How should the driver interpret this layout?

  1. It is a cycle lane that the lorry should not enter unless it is safe and necessary to cross Correct answer.
  2. It is an advisory cycle lane that the lorry may use freely
  3. It is a parking bay for bicycles that lorries may share
  4. It is a mandatory cycle lane that the lorry may enter only to load

Explanation

A cycle lane marked by a broken line is advisory, and drivers should avoid entering it unless crossing is safe and necessary, for example to reach a junction or property. A solid boundary line would make entry a prohibition. Heavy vehicles should give cyclists the full width of such lanes wherever possible.

Question 39Road Signs, Signals and Road Markings

A driver approaches a junction where a traffic officer stands with the left arm extended horizontally towards the driver's approach and the right arm held down. What does this signal mean for that driver?

  1. Turn right behind the officer
  2. Stop because the officer is controlling the approach from that side Correct answer.
  3. Proceed past the officer on the left side
  4. Sound the horn and continue at reduced speed

Explanation

An arm extended horizontally towards an approach is the manual signal to stop traffic coming from that direction. The officer's signals override signs, markings and signals at the junction. The driver must remain stopped until the officer signals otherwise.

Question 40Road Signs, Signals and Road Markings

A driver sees a rectangular blue sign with a white symbol of a lorry and the word 'ZONE' beneath it, mounted at the entrance to a town centre. What does this sign establish?

  1. A recommended route for heavy vehicles through the town
  2. A zone reserved for loading by goods vehicles only
  3. A zone in which goods vehicles are prohibited unless an exemption applies Correct answer.
  4. A weighbridge checkpoint for goods vehicles

Explanation

A blue rectangular zone sign with a lorry symbol marks the start of an area where goods vehicles are restricted, usually with exemptions shown on an accompanying panel. The restriction continues until a matching end-of-zone sign is reached. Drivers must check the panel for weight limits, times and permitted access.

Question 41Traffic Rules and Right-of-Way

Sur une route à double sens en agglomération, un camion de plus de 3,5 tonnes circule à quelle vitesse maximale autorisée, sauf signalisation contraire ?

  1. 60 km/h
  2. 50 km/h Correct answer.
  3. 90 km/h
  4. 80 km/h

Explanation

En agglomération, la limitation générale est de 50 km/h et elle s'applique à tous les véhicules, poids lourds compris, sauf panneau spécifique. Le gabarit du véhicule ne relève pas cette limite en ville.

Question 42Traffic Rules and Right-of-Way

Hors agglomération, sur une route à chaussées séparées par un terre-plein central, quelle vitesse maximale un camion de 19 tonnes doit-il respecter en l'absence de panneau ?

  1. 90 km/h
  2. 110 km/h
  3. 80 km/h Correct answer.
  4. 100 km/h

Explanation

Pour les poids lourds de plus de 3,5 tonnes, la vitesse maximale hors agglomération reste 80 km/h même sur route à chaussées séparées, sauf limitation spécifique plus basse. Les vitesses plus élevées sont réservées aux véhicules légers.

Question 43Traffic Rules and Right-of-Way

À une intersection sans panneaux ni feux, un camion arrive à droite d'une voiture qui vient de sa gauche. Qui doit céder le passage ?

  1. La voiture, car elle vient de la gauche du camion Correct answer.
  2. Le véhicule le plus lourd, par principe de sécurité
  3. Le premier arrivé sur l'intersection
  4. Le camion, car il vient de la droite de la voiture

Explanation

Sans signalisation, la priorité à droite s'applique : le véhicule qui arrive par la gauche doit céder le passage à celui qui vient de sa droite. La voiture, venant de la gauche du camion, doit donc laisser passer le camion.

Question 44Traffic Rules and Right-of-Way

Un camion aborde un rond-point sans feux ni panneaux de priorité à l'entrée. Quelle règle de priorité s'applique ?

  1. La priorité revient toujours au véhicule venant de droite à l'entrée
  2. Les véhicules entrants sont prioritaires
  3. Le véhicule le plus long est prioritaire
  4. Les véhicules déjà engagés sur l'anneau sont prioritaires Correct answer.

Explanation

Lorsque l'entrée du giratoire n'est pas signalée par un panneau cédez-le-passage, la priorité à droite s'applique aux véhicules déjà sur l'anneau. En pratique, le camion doit ralentir et laisser passer ceux qui circulent déjà dans le rond-point.

Question 45Traffic Rules and Right-of-Way

Un camion veut dépasser un cycliste sur une route de campagne. Quelle distance latérale minimale doit-il respecter hors agglomération ?

  1. 1,5 mètre Correct answer.
  2. 2 mètres
  3. 1 mètre
  4. 0,5 mètre

Explanation

Hors agglomération, le dépassement d'un cycliste exige un écart latéral d'au moins 1,5 mètre. Cette distance protège l'usager vulnérable des remous d'air et des écarts imprévus.

Question 46Traffic Rules and Right-of-Way

En agglomération, quel écart latéral minimal un camion doit-il laisser pour dépasser un deux-roues ?

  1. 1,5 mètre
  2. 1 mètre Correct answer.
  3. 2 mètres
  4. 0,5 mètre

Explanation

En agglomération, l'écart latéral minimal pour dépasser un cycliste ou un deux-roues est de 1 mètre. Hors agglomération, cette distance passe à 1,5 mètre.

Question 47Traffic Rules and Right-of-Way

Un camion franchit un passage à niveau dont les barrières sont levées mais dont le feu rouge clignote. Que doit faire le conducteur ?

  1. Klaxonner et franchir le passage
  2. Suivre le véhicule qui précède sans s'arrêter
  3. Passer rapidement avant la fermeture des barrières
  4. S'arrêter et ne repartir qu'à l'extinction du feu Correct answer.

Explanation

Le feu rouge clignotant impose l'arrêt absolu, même si les barrières sont encore ouvertes. Le train peut arriver avant leur fermeture ; il faut attendre l'extinction du signal pour repartir.

Question 48Traffic Rules and Right-of-Way

Un camion doit s'arrêter à un stop. Où doit-il immobiliser son véhicule ?

  1. Cinq mètres avant le panneau
  2. Sur la ligne d'arrêt ou à défaut à la limite de la chaussée Correct answer.
  3. Au milieu de l'intersection pour mieux voir
  4. Sur le passage piéton

Explanation

Au panneau stop, l'arrêt complet se fait à la ligne d'arrêt matérialisée au sol ou, à défaut, à la limite de la chaussée. S'arrêter sur le passage piéton ou dans l'intersection gêne la circulation et masque la visibilité.

Question 49Traffic Rules and Right-of-Way

Sur une chaussée à trois voies, deux voies vont dans le sens du camion et une dans le sens opposé. Quelle voie le camion doit-il utiliser en marche normale ?

  1. La voie du sens opposé si elle est libre
  2. La voie la plus à droite de son sens Correct answer.
  3. La voie la plus à gauche de son sens
  4. La voie centrale, partagée

Explanation

En marche normale, tout véhicule doit circuler sur la voie la plus à droite de son sens de circulation. Les autres voies servent au dépassement ou à la préparation d'un changement de direction.

Question 50Traffic Rules and Right-of-Way

Un camion veut changer de file sur une route à plusieurs voies. Quelle obligation principale s'impose à lui ?

  1. Changer de file sans prévenir si la voie est large
  2. Avertir par clignotant et céder le passage aux véhicules déjà sur la voie visée Correct answer.
  3. Klaxonner pour signaler sa manœuvre
  4. Accélérer pour s'insérer avant les autres

Explanation

Tout changement de file exige un avertissement par clignotant et le respect de la priorité des véhicules circulant déjà sur la voie visée. Le conducteur doit s'assurer que la manœuvre ne gêne personne.