Vehicle Handling

122 soru

Soru 41Soru →

Tyre tread grooves are designed to channel standing water away from beneath the tyre to maintain contact with the road surface in wet weather.

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Cevap: True

Cevap

True
The statement is true because tyre tread grooves are specifically engineered to disperse surface water away from the tyre's contact patch, ensuring the vehicle maintains grip and does not aquaplane.

Adım Adım Çözüm

1
Identify the primary purpose of tyre tread patterns when driving on wet roads.
Tread grooves act as drainage channels that pump and direct surface water away from the contact patch.
Water must be evacuated quickly so that the rubber can maintain physical grip on the road surface.
2
Evaluate how this mechanism prevents the vehicle from aquaplaning.
Effective water dispersal prevents a layer or wedge of water from building up under the tyre.
Aquaplaning occurs when water cannot escape fast enough, causing the tyre to lose contact and ride on a cushion of water.
3
Determine the accuracy of the statement.
The statement correctly describes the design and function of tyre tread grooves in wet conditions.
Maintaining road contact through effective water channelling is the core design objective of road tyres in the wet.

Anahtar Kavram

Tyre tread water dispersal and aquaplaning prevention
Tahmini Süre:30s
Soru 42Soru →

Match each road calming feature or surface condition with the appropriate hazard awareness and driving action.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Rumble strips before a junction
Loose chippings after road resurfacing
Wet tram rails in a city centre
Speed cushions in a traffic-calmed zone

Eşleşmeler

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Cevap

Rumble strips provide sound and vibration warnings before a hazard; loose chippings require reduced speed and greater following distance to prevent skidding and stone damage; wet tram rails demand gentle control inputs due to slippery metal; and speed cushions require a low, steady speed while straddling the raised profile.
Each feature serves a distinct purpose: rumble strips produce noise and vibration to alert drivers to reduce speed before a hazard; loose chippings require lower speed and greater following distance to mitigate flying stones and reduced traction; wet tram rails have low surface friction demanding smooth, gentle controls; and speed cushions require a steady, reduced pace while keeping a clear lookout for cyclists.

Adım Adım Çözüm

1
Identify the primary safety function of the physical warning features.
Rumble strips provide sensory alerts, whereas speed cushions control vehicle speeds in residential zones.
Understanding the physical intent of traffic calming measures dictates proper speed management.
2
Evaluate the tyre grip implications of reduced-traction surface conditions.
Loose chippings can cause skidding and flying stones, while wet tram rails present an extreme loss of traction.
Different road surfaces require modified braking distances and gentler steering to maintain stability.
3
Pair each condition with its specific UK Highway Code driving response.
All four items are accurately matched to their corresponding hazards and actions.
Applying the correct driving response ensures vehicle stability, pedestrian safety, and vehicle preservation.

Anahtar Kavram

Adapting vehicle handling and speed control to different traffic calming features and road surface traction levels.
Tahmini Süre:45s
Soru 43Soru →

When moving off on an icy road in a manual vehicle, selecting second gear rather than first gear helps to reduce wheelspin.

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Cevap: True

Cevap

True
In icy conditions, pulling away in second gear reduces torque at the driven wheels, helping maintain traction and prevent wheelspin.

Adım Adım Çözüm

1
Identify the primary vehicle handling challenge when moving off on ice.
Extremely low tyre grip makes the driven wheels prone to spinning if excessive torque is applied.
Traction on ice is minimal, requiring delicate throttle and torque control.
2
Evaluate how gear selection influences torque delivery to the road wheels.
Second gear delivers lower torque to the wheels than first gear for the same engine input.
Lower torque reduces the chance of breaking tyre adhesion with the icy road surface.

Anahtar Kavram

Selecting second gear when moving off in icy and snowy conditions to prevent wheelspin and maintain traction.

Alternatif Yöntem

In an automatic car, selecting winter driving mode or manually engaging a higher gear ratio achieves the same reduced wheel torque.
Tahmini Süre:30s
Soru 44Soru →

Activating cruise control when driving on roads affected by ice and snow helps maintain vehicle control by preventing erratic throttle inputs and stabilizing wheel rotation.

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Cevap: False

Cevap

False (Cruise control should never be used in icy or snowy conditions because it can maintain power delivery during traction loss and cause a severe skid).
The correct answer is False. On roads affected by ice and snow, tyre grip is minimal and unpredictable. Cruise control systems continuously regulate engine power to maintain a preset speed. If the drive wheels encounter ice and break traction, cruise control can continue applying power or accelerate to sustain the set speed, resulting in violent wheel spin and a severe loss of directional control. Additionally, using cruise control prevents the driver from instantly exploiting natural engine braking by lifting off the accelerator pedal.

Adım Adım Çözüm

1
Examine how vehicle cruise control operates in standard driving conditions.
Cruise control continuously regulates the throttle to maintain a set speed without requiring manual accelerator pedal input.
Understanding the automated mechanism of the system is essential to evaluate its interaction with slippery surfaces.
2
Analyze tyre grip dynamics and surface friction variations on ice- and snow-covered roads.
Traction on snow and ice is drastically reduced and can change instantaneously between patchy grip and zero friction.
Sudden loss of surface friction directly affects how driven wheels respond to engine torque.
3
Evaluate vehicle handling and stability risks when cruise control remains active across low-grip surfaces.
If the driven wheels slip on ice, the system detects a loss of speed and can apply additional power, spinning the drive wheels and precipitating an immediate, uncontrolled skid while delaying driver intervention via engine braking.
Driver assistance systems designed for dry tarmac cannot anticipate loss of surface adhesion and can exacerbate vehicle instability.
4
Determine the validity of the statement based on UK vehicle handling principles.
The statement is determined to be false; drivers must retain full manual control of throttle and gears in winter conditions.
Manual control allows immediate reduction of torque and gentle application of engine braking at the first sign of traction loss.

Anahtar Kavram

Handling risks and the prohibition of cruise control systems on ice and snow
Tahmini Süre:1m 0s
Soru 45Soru →

While driving at 70 mph on a motorway during a heavy downpour, you drive into a long stretch of standing water. The steering suddenly feels completely weightless, and the road noise drastically reduces, indicating that your vehicle is aquaplaning. What is the fundamental physical reason why you must ease off the accelerator and strictly avoid applying the footbrake in this situation?

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Cevap: Because the tyres are floating on a layer of water, braking will cause the wheels to lock; when the tyres eventually regain contact with the road surface, these locked wheels will instantly trigger a severe skid.

Cevap

The correct response is that braking will cause the wheels to lock while floating, which will instantly trigger a severe skid the moment the tyres regain contact with the road surface.
When a vehicle aquaplanes, it is literally surfing on a wedge of water with zero road contact. If you brake, the lack of friction means the wheels will instantly lock up. Once the vehicle slows down enough for the water to disperse and the tyres touch the solid road again, the sudden return of grip on completely stationary (locked) wheels will throw the vehicle into a violent, uncontrollable skid. Easing off the accelerator prevents this by allowing the wheels to continue spinning at the vehicle's speed until grip is safely restored.

Adım Adım Çözüm

1
Analyze the physical state of the vehicle during aquaplaning.
The vehicle's tyres are floating on a wedge of water, meaning there is absolutely zero friction between the tyres and the road surface.
Understanding the complete lack of physical grip is essential for determining how the vehicle will respond to control inputs.
2
Evaluate the effect of applying the footbrake in this frictionless state.
Because there is no road friction to force the wheels to keep turning, applying the brakes will cause the wheels to instantly stop rotating (lock up).
Brakes stop the wheels from turning, but it is the friction with the road that stops the car. Without friction, the wheels simply lock.
3
Determine the consequence of locked wheels when aquaplaning ceases.
As the vehicle naturally loses momentum, the tyres will drop back onto the tarmac. If the wheels are locked when this sudden grip occurs, the vehicle will be violently thrown into a skid.
This physical reality makes easing off the accelerator—allowing the wheels to keep spinning freely—the only safe method to regain control.

Anahtar Kavram

The mechanics of aquaplaning and the critical danger of locked wheels upon regaining road traction.
Tahmini Süre:1m 15s
Soru 46Soru →

What is the main purpose of rumble strips painted across the road on the approach to a roundabout or pedestrian crossing?

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Cevap: To alert you to your speed and warn you of an upcoming hazard through noise and vibration

Cevap

To alert you to your speed and warn you of an upcoming hazard through noise and vibration
Rumble strips are raised textured lines laid across the carriageway. Driving over them produces sound and vibration inside the vehicle, alerting drivers to monitor their speed and prepare for an approaching hazard, sharp bend, or junction.

Adım Adım Çözüm

1
Identify the physical design and sensory feedback of rumble strips.
Recognise that driving over raised, textured strips generates sound and vibration through the tyres and suspension.
Rumble strips are specifically designed to stimulate driver awareness through auditory and tactile cues.
2
Relate this sensory feedback to traffic management and driver reaction.
The feedback encourages the driver to assess their speedometer and anticipate an upcoming hazard such as a junction or crossing.
Early sensory warnings ensure drivers adjust their speed safely well before reaching the point of conflict.

Anahtar Kavram

Purpose and effect of rumble strips as traffic calming devices
Tahmini Süre:45s
Soru 47Soru →

You are driving at 60 mph on a national speed limit single carriageway in torrential rain. Ahead, you notice significant surface water pooling across the road. What is the safest and most effective action to take before reaching the pooled water to prevent aquaplaning?

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Cevap: Check your mirrors and ease off the accelerator in good time to reduce your speed smoothly before reaching the standing water.

Cevap

Check your mirrors and ease off the accelerator in good time to reduce your speed smoothly before reaching the standing water.
Aquaplaning occurs when water builds up between the tyre and road surface faster than the tread grooves can disperse it, causing the tyre to ride on a film of water. Checking mirrors and easing off the accelerator in good time allows the car to slow down smoothly before reaching the water, ensuring the tread can effectively evacuate surface water and maintain grip.

Adım Adım Çözüm

1
Assess the upcoming surface hazard and surrounding traffic.
Identified standing water ahead and confirmed following vehicle distance via mirrors.
Observing hazards early allows smooth, controlled adjustments without surprising trailing vehicles.
2
Ease off the accelerator well before reaching the water rather than braking abruptly.
Vehicle speed decreases smoothly and progressively before encountering the pool.
Lower vehicle speed reduces the rate of water accumulation in front of the tyres, allowing the tread grooves to clear water efficiently and prevent aquaplaning.
3
Maintain a steady course with both hands on the steering wheel while traversing the wet area.
Tyre contact and directional stability are preserved.
Sudden steering inputs or pedal applications while tyres pass through standing water can break residual grip and initiate a skid.

Anahtar Kavram

Proactive speed reduction before standing water to prevent aquaplaning
Tahmini Süre:1m 0s
Soru 48Soru →

Before making an essential journey in winter conditions, your vehicle is covered with snow. What is the correct order of steps to properly prepare the vehicle and move off safely?

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

Ensure windscreen wipers are off before ignition, clear all exterior snow and ice from the vehicle, demist all interior windows fully, then check around and move off gently in the highest practical gear.
Before setting off in freezing weather, you must first ensure the wipers are switched off so their motors do not burn out when starting the engine. Next, clear all exterior snow from the roof, lights, mirrors, and glass to ensure visibility and prevent snow blinding yourself or others. Then, ensure the interior glass is completely demisted. Finally, complete all-round observations and move away smoothly in a higher gear to minimise wheelspin.

Adım Adım Çözüm

1
Ensure windscreen wipers are turned off before switching on the ignition.
Protects the wiper motor and wiper blades from mechanical overload.
If wipers are frozen to the windscreen and active when the ignition turns on, the electric motor can burn out or blow a fuse.
2
Clear all exterior snow and ice from the roof, lights, mirrors, and glass.
Gives unobstructed exterior sightlines and ensures vehicle lights are visible to others.
The Highway Code requires all windows and lights to be completely clear of snow before driving, and clearing the roof prevents snow from sliding over the windscreen when braking.
3
Demist the windscreen and side windows completely from the inside.
Achieves full 360-degree vision from inside the cabin.
Driving with misted windows restricts hazard awareness and is a motoring offence.
4
Conduct all-round observations and gently move away in a higher gear.
The car moves away smoothly without losing traction.
Selecting a higher gear delivers less torque to the driven wheels, helping to prevent wheelspin on packed snow and ice.

Anahtar Kavram

Correct procedure for preparing a snow-covered vehicle and moving off safely on slippery surfaces
Tahmini Süre:45s
Soru 49Soru →

While driving on a wet road, the rear of your car begins to skid to the right. In what order should you perform these immediate corrective actions?

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct sequence is to first release the footbrake and accelerator pedals, steer smoothly into the direction of the skid, and finally straighten the steering wheel as the vehicle regains alignment.
To regain control during a rear-wheel skid, the driver must first release the footbrake and throttle so the tyres can regain rolling grip. The driver should then steer smoothly into the direction the rear is skidding, and finally straighten the wheel as the vehicle recovers its line to prevent a secondary skid.

Adım Adım Çözüm

1
Take your feet off the brake and accelerator pedals.
Traction is restored to the tyres because locked or spinning wheels cannot generate steering control.
Removing harsh braking or sudden power is essential before steering input can be effective.
2
Steer smoothly into the direction the rear of the vehicle is sliding.
The front wheels match the vehicle's momentum and counteract the sideways spin.
Steering into the skid brings the vehicle back on its intended path.
3
Centralise the steering wheel as the car straightens.
The vehicle stabilises smoothly along the road.
Failing to straighten up in time causes a sudden whip effect and a secondary skid.

Anahtar Kavram

Skid correction technique and sequence
Tahmini Süre:45s
Soru 50Soru →

Under-inflated tyres reduce the likelihood of aquaplaning on water-covered roads because the larger contact footprint creates more grip.

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Cevap: False

Cevap

The statement is false. Under-inflated tyres significantly increase the risk of aquaplaning because internal tread distortion prevents water from being effectively channelled away.
The statement is false. Correct tyre pressure is vital for maintaining an even contact patch across the road. Under-inflation causes the tyre tread to buckle inward at the centre, compromising the tread channels' ability to disperse water. This allows a wedge of water to form underneath the tyre at lower speeds, substantially increasing the risk of aquaplaning.

Adım Adım Çözüm

1
Analyze how tyre inflation pressure affects tread contact geometry.
Under-inflation causes the outer shoulders to bear excessive load while the centre of the tread bows inward away from the road surface.
Tyre tread channels require correct internal air pressure to stay open and maintain a flat, uniform contact patch.
2
Evaluate the hydrodynamic consequences of this tread distortion in wet conditions.
The collapsed central grooves cannot evacuate water efficiently, allowing water to collect beneath the tyre.
Without clear drainage pathways, hydrodynamic water pressure rapidly builds up under the tyre carcass.
3
Determine the resulting effect on the vehicle's aquaplaning threshold.
The tyre rides up on a film of water at much lower speeds compared to a correctly inflated tyre, increasing the risk of loss of control.
Because under-inflation impairs water dispersion and lowers the aquaplaning speed, the statement is false.

Anahtar Kavram

Impact of tyre pressure and tread geometry on hydrodynamic water dispersal and aquaplaning thresholds
Tahmini Süre:45s
Soru 51Soru →

You are driving down a steep hill on an icy road. What action should you take to keep control of your vehicle?

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Cevap: Select a low gear, drive at a slow speed, and avoid harsh braking

Cevap

Select a low gear, drive at a slow speed, and avoid harsh braking.
When driving down a steep, icy hill, selecting a low gear before descending allows engine braking to help manage speed naturally. Keeping speed low and avoiding abrupt braking preserves tyre grip and prevents wheel lock-up.

Adım Adım Çözüm

1
Assess the icy gradient and adjust vehicle speed before beginning the descent.
The vehicle approaches the slope at a safe, controlled pace.
Attempting to slow down suddenly once already on an icy slope is difficult and hazardous.
2
Engage a low gear and use gentle control inputs.
Engine braking restrains the vehicle's descent speed without locking the wheels.
Relying on engine braking reduces the need for harsh friction braking on slippery surfaces.

Anahtar Kavram

Downhill speed control and engine braking on icy surfaces
Tahmini Süre:45s
Soru 52Soru →

Which driver action is most likely to cause a vehicle to skid when travelling on a slippery road surface?

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Cevap: Harsh braking and sudden, sharp steering movements

Cevap

Harsh braking and sudden, sharp steering movements
Harsh braking, rapid acceleration, and sudden steering movements put extreme forces on the contact patches of the tyres. On slippery surfaces where grip is already reduced, these abrupt actions easily exceed available traction, causing the tyres to slide and the vehicle to skid.

Adım Adım Çözüm

1
Identify the primary mechanism of a vehicle skid
A skid happens when tyre adhesion is lost because the physical demands placed on the tyres exceed the available friction between the rubber and the road surface.
Understanding traction limits clarifies which driver behaviours cause tyres to break grip.
2
Evaluate driver inputs against friction limits
Sudden control inputs such as heavy braking, sharp steering, or rapid acceleration place intense, abrupt loads on the tyres that easily break traction on low-grip surfaces.
Smooth and progressive driving actions preserve tyre adhesion and prevent skidding.

Anahtar Kavram

Skidding is primarily caused by driver error, specifically sudden or excessive braking, steering, or acceleration that exceeds tyre grip.
Tahmini Süre:30s
Soru 53Soru →

You are driving along a road where loose chippings have recently been laid following surface dressing. What action should you take to safely maintain vehicle control and protect other road users?

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Cevap: Reduce your speed and increase your following distance from the vehicle ahead

Cevap

Reduce your speed and increase your following distance from the vehicle ahead.
On roads treated with loose chippings, tyre grip is significantly reduced, meaning stopping distances increase and the risk of skidding rises. Slowing down and maintaining a larger gap from the vehicle in front provides ample room to brake smoothly and prevents loose chippings from being thrown up and damaging bodywork or windscreens.

Adım Adım Çözüm

1
Assess the surface condition and reduced tyre grip
Recognise that loose chippings act like ball bearings under tyres, significantly increasing stopping distances and reducing steering traction.
Unstable road surfaces require proactive speed reduction before loss of grip occurs.
2
Adjust speed and following separation
Drive at a reduced, steady pace and leave a much larger safety gap behind the vehicle ahead.
This allows sufficient room to stop smoothly without harsh braking and minimises the hazard of loose stones damaging windscreens or injuring other road users.

Anahtar Kavram

Adapting speed, braking, and separation distances on loose road surfaces
Tahmini Süre:1m 0s
Soru 54Soru →

Following heavy rainfall, extensive surface water has accumulated across a rural carriageway. While driving through this section, your vehicle begins to aquaplane, causing the steering wheel to feel completely light and unresponsive. What is the correct action to take to safely regain steering control?

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Cevap: Ease off the accelerator gradually and keep the steering wheel straight until tyre grip returns

Cevap

Ease off the accelerator gradually and keep the steering wheel straight until tyre grip returns.
Releasing the accelerator smoothly reduces forward speed without causing sudden weight transfer or locking the wheels. Maintaining a straight steering angle ensures that when the tyre tread cuts through the standing water and re-establishes contact with the road surface, the vehicle tracks straight ahead safely.

Adım Adım Çözüm

1
Recognise the loss of traction caused by aquaplaning, indicated by light and unresponsive steering.
The driver avoids panic and prepares for gentle corrective actions.
Identifying the condition prevents sudden, dangerous control inputs.
2
Ease off the accelerator pedal smoothly while avoiding any application of the footbrake.
Vehicle speed decreases steadily without wheel lockup.
Allows the tyre tread grooves to effectively clear the water film and settle back onto the tarmac.
3
Hold the steering wheel straight and steady.
Vehicle maintains a straight trajectory as traction is restored.
Prevents the vehicle from veering violently or entering a skid the moment the tyres regain grip.

Anahtar Kavram

Aquaplaning occurs when tyres ride on a film of water rather than the road surface. Recovery requires gradual deceleration by releasing the accelerator without braking or harsh steering.
Tahmini Süre:1m 0s
Soru 55Soru →

Slamming on the footbrake immediately when your vehicle begins to skid is the most effective way to regain steering control.

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Cevap: False

Cevap

False. Slamming on the footbrake eliminates tyre grip needed for steering, which exacerbates the skid rather than resolving it.
The statement is false because harsh braking removes tyre adhesion and prevents the front wheels from steering effectively. To recover from a skid, the driver must release the footbrake and gently steer into the direction of the skid.

Adım Adım Çözüm

1
Evaluate the effect of abrupt, heavy braking on tyre traction during a skid.
Heavy braking overloads the contact patch of the tyres, causing them to lock or lose all lateral grip.
Tyres have a finite amount of grip; using all available friction for braking leaves no grip available for steering.
2
Identify the standard DVSA corrective procedure for regaining vehicle control.
The driver should release the footbrake and smoothly steer into the direction of the skid.
Releasing the brake allows the wheels to rotate freely again, restoring directional steering control.

Anahtar Kavram

Tyre adhesion limits and appropriate driver inputs during skid correction
Tahmini Süre:30s
Soru 56Soru →

Match each traffic calming feature or specialized road surface with the correct driver action and hazard response.

Soldaki öğeye tıklayın, sonra eşleşen sağdaki öğeye tıklayın

Öğeler

Speed cushions in a 20 mph residential zone
Chicane traffic calming system
Wet tram tracks embedded in urban asphalt
High-friction anti-skid surface approaching a pedestrian crossing

Eşleşmeler

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Cevap

Speed cushions match driving centrally to straddle the cushion safely; chicanes match checking priority signs and negotiating curves smoothly; wet tram tracks match crossing at right angles to prevent slip; and high-friction surfacing matches recognizing enhanced grip on hazard approaches.
Each traffic calming measure and surface type requires a distinct driving response: speed cushions must be straddled centrally to protect cyclists; chicanes require obeying priority signs and negotiating curves at low speed; wet tram tracks demand a perpendicular crossing angle to avoid skidding; and high-friction surfacing provides increased grip at critical braking zones.

Adım Adım Çözüm

1
Identify the physical structure and intent of speed cushions versus other calming measures.
Speed cushions allow vehicles to straddle them centrally while leaving edge space for cyclists.
Correct alignment avoids suspension damage and protects cyclists in the kerbside gutter.
2
Evaluate the traffic management purpose of chicanes.
Chicanes require drivers to give way to oncoming traffic when indicated and steer through staggered obstacles at low speed.
They slow speeds by physically disrupting straight travel lines.
3
Assess the surface friction hazard of wet tram rails.
Metal tracks have very low friction when wet, requiring perpendicular crossing angles.
Crossing at shallow angles risks tyre slip and loss of steering control.
4
Determine the role of high-friction anti-skid surfacing.
It provides increased tyre traction to reduce stopping distance on critical approaches.
Installed at junctions and pedestrian crossings to reduce collision risk.

Anahtar Kavram

Appropriate vehicle handling and speed adjustment across varied traffic calming features and road surface conditions
Tahmini Süre:1m 0s
Soru 57Soru →

According to the Highway Code, front and rear fog lights must be switched off once visibility improves.

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Cevap: True

Cevap

True
The statement is true because Highway Code Rule 236 strictly requires drivers to extinguish both front and rear fog lights as soon as visibility improves beyond 100 metres to prevent dazzling others and obscuring brake lights.

Adım Adım Çözüm

1
Identify the relevant Highway Code regulation governing fog light operation in changing conditions.
Highway Code Rule 236 mandates that fog lights must only be used when visibility is seriously reduced (below 100 metres) and must be extinguished when conditions improve.
High-intensity rear fog lights can obscure brake lights and dazzle following drivers, while front fog lights cause glare for oncoming traffic.
2
Evaluate the accuracy of the statement based on the legal requirement.
The statement accurately reflects the mandatory requirement to deactivate fog lights once visibility clears.
Compliance with lighting regulations is essential for road safety and preventing glare.

Anahtar Kavram

Highway Code rules regarding the mandatory deactivation of fog lights when visibility clears
Tahmini Süre:30s
Soru 58Soru →

You are driving behind another vehicle on a road that has recently been resurfaced with loose chippings. What actions should you take to maintain vehicle control and avoid causing damage to other road users?

Cevabı ve açıklamayı göster

Cevap: Reduce your speed well before hazards, increase your following distance, and avoid abrupt steering or harsh braking

Cevap

Reduce your speed well before hazards, increase your following distance, and avoid abrupt steering or harsh braking
When driving over loose chippings, the road surface provides significantly less grip because loose stones roll under the tyres like ball bearings. Drivers must reduce their speed well before reaching bends or hazards, make all steering and braking inputs smoothly and progressively, and leave a much greater separation distance from the vehicle in front. Keeping well back compensates for the extended stopping distance on loose surfaces and protects your vehicle from flying stones thrown up by tyres ahead.

Adım Adım Çözüm

1
Recognise the physical hazards of loose chippings on the road surface
Understanding that loose stones reduce tyre grip and act as airborne projectiles
Loose chippings roll under the tyres, drastically increasing braking distances and presenting a projectile danger to surrounding vehicles
2
Adjust speed and separation distance in response to the reduced grip
Lower vehicle speed and an increased following distance
Lower speed minimises stone throw and reduces the risk of skidding, while extra following distance prevents windscreen damage and allows for longer stopping distances
3
Apply smooth and progressive control inputs for steering, braking, and accelerating
Stable tyre contact without sudden weight transfers or wheel lock-up
Sudden or aggressive inputs easily exceed the limited friction available on loose surfaces, provoking a loss of control

Anahtar Kavram

Vehicle stability, skid prevention, and following distance adjustments on loose road surfaces
Tahmini Süre:1m 0s
Soru 59Soru →

You are driving on a wet road and approaching a sharp bend. How should you adjust your driving to reduce the risk of skidding?

Cevabı ve açıklamayı göster

Cevap: Reduce your speed smoothly in a straight line before entering the bend

Cevap

Reduce your speed smoothly in a straight line before entering the bend
Slowing down in good time before turning ensures that tyre grip is not compromised by braking forces while cornering. On wet roads, demanding both sharp steering and heavy braking at the same time is one of the most common causes of skidding.

Adım Adım Çözüm

1
Assess the upcoming road hazard and surface conditions on approach
Identify that the combination of a sharp bend and wet surface significantly lowers the threshold for losing tyre grip
Tyres have a finite amount of adhesion shared between steering, braking, and accelerating
2
Separate braking from steering by gently reducing speed before the turn begins
The vehicle enters the corner at a safe, stable speed without demanding simultaneous heavy braking and steering inputs
Completing deceleration in a straight line reserves full tyre grip for directional control through the curve

Anahtar Kavram

Separating braking and steering to manage tyre grip and prevent skids on slippery bends
Tahmini Süre:45s
Soru 60Soru →

While traversing a low-lying section of carriageway covered in standing water, your vehicle begins to float on a layer of water, causing the steering to suddenly feel light and unresponsive. Arrange the following driver actions in the correct chronological order to safely manage the aquaplaning event and re-establish safe driving conditions.

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct sequence begins with holding the steering wheel firmly straight, followed by smoothly easing off the throttle, waiting for steering resistance to return as tyres cut through the water, and finally expanding the following distance to at least four seconds.
When a vehicle aquaplanes, water builds up in front of the tyres faster than the tread grooves can disperse it, causing the tyre to ride on a water film with near-zero friction. The driver must first maintain a neutral, straight steering direction to avoid entering a skid when grip returns. Next, smoothly releasing the throttle permits natural deceleration without inducing brake lock-up. Once steering weight returns—confirming tyre-to-road contact—the driver can resume normal control and expand their following distance to at least four seconds to manage ongoing wet road hazards.

Adım Adım Çözüm

1
Maintain a firm, neutral grip on the steering wheel directed straight along your lane path.
Prevents the front tyres from entering a sideways angle while floating on the water film.
If the front tyres are turned while aquaplaning, the car will violently pivot and enter an uncontrollable skid the instant contact is regained.
2
Gently remove pressure from the accelerator pedal without touching the footbrake.
Allows vehicle speed to decline gradually via aerodynamic and water resistance.
Harsh braking on zero-friction water layers locks the wheels or destabilises the vehicle before grip returns.
3
Monitor tactile steering feedback until normal resistance and tyre-to-tarmac friction are re-established.
The water wedge beneath the tyre footprint is displaced by the tread grooves, restoring steering and braking authority.
Direct control actions must only be resumed once the tyre rubber has physical contact with the tarmac.
4
Increase the separation gap to the vehicle in front to a minimum of four seconds.
Accommodates the doubled overall stopping distance required on wet road surfaces.
Highway Code rules mandate doubling the standard two-second dry weather rule to a four-second gap on wet surfaces.

Anahtar Kavram

Aquaplaning Recognition and Physical Recovery Sequence
Tahmini Süre:1m 30s
ÖncekiSayfa 3 / 7Sonraki
Vehicle Handling Alıştırma Soruları — UK Driving Theory Test — Sayfa 3 | Examkin