Examkin

Special Driving Conditions and Hazards

248 soru

Tüm türler248Çoktan seçmeli125Doğru / Yanlış102Sıralama21
Soru 1Soru →

If a tire's inflation pressure measures higher than the manufacturer's recommended level while stopping during a trip in extreme heat, air should be released from the tire to reduce the pressure back to the cold inflation rating.

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Cevap: False

Cevap

The statement is False. Drivers should never release air from a hot tire.
The statement is False because pressure buildup in tires during extreme heat is normal due to thermal expansion. Vehicle manufacturers design tires to accommodate this pressure increase. Releasing air from a hot tire causes it to become dangerously underinflated once it cools down, increasing the risk of tread separation or a blowout.

Adım Adım Çözüm

1
Analyze tire pressure behavior during extreme temperature conditions.
Air inside tires expands when exposed to high ambient temperatures and road friction, leading to elevated pressure readings.
Thermal expansion is a normal and expected physical response during driving in high heat.
2
Evaluate the safety procedure for checking and adjusting tire pressure.
Tire pressure must only be measured and adjusted when the tires are cold.
Manufacturers account for heat expansion when setting cold inflation pressure limits; bleeding air from a hot tire results in severe underinflation once the tire cools.

Anahtar Kavram

Tire Pressure Management in Extreme Heat
Soru 2Soru →

In an active highway construction work zone, temporary solid white lines separating adjacent lanes traveling in the same direction permit drivers to change lanes at their discretion, provided they signal and check blind spots beforehand.

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Cevap: False

Cevap

False. Temporary solid white lines in work zones indicate that drivers should stay in their lane and refrain from passing or changing lanes due to restricted roadway width and unexpected hazards.
The correct answer is False because temporary solid white lines in construction zones signal to drivers that lane changing is unsafe and restricted. In work zones, lanes are frequently narrowed, shifted, or bounded by concrete barriers, making side-to-side vehicle movement a leading cause of side-swipe accidents.

Adım Adım Çözüm

1
Identify the pavement marking and setting described in the scenario.
The scenario describes temporary solid white lines between lanes moving in the same direction within an active highway construction zone.
Understanding pavement marking conventions is critical for legal and safe maneuvering in altered traffic patterns.
2
Apply standard traffic rules regarding solid white lane lines in hazard areas.
Solid white lines indicate that lane changing is discouraged or strictly prohibited, especially where lanes are narrowed or re-routed through work zones.
Work zones present reduced lane width, uneven surfaces, and close proximity to barrier walls or construction personnel, making lateral lane changes significantly dangerous.
3
Evaluate the truth value of the statement.
The statement asserts drivers may change lanes at discretion, which contradicts work zone pavement marking regulations.
Drivers must maintain their established lane until passing the work zone or reaching broken line markings.

Anahtar Kavram

Work Zone Pavement Markings and Lane Maintenance Restrictions
Tahmini Süre:1m 30s
Soru 3Soru →

Emergency escape ramps constructed along steep mountain downgrades are designed to decelerate and safely stop runaway vehicles that experience total brake failure.

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Cevap: True

Cevap

True. Emergency escape ramps are specialized safety features engineered to stop out-of-control vehicles on steep mountain descents.
The statement is true because emergency escape ramps are engineered specifically on long, steep downhill grades to safely stop vehicles that have lost braking capacity.

Adım Adım Çözüm

1
Identify the primary function of emergency escape ramps on mountain roads.
Recognize that escape ramps provide an off-road deceleration pathway for vehicles experiencing brake failure on steep downgrades.
Understanding highway emergency infrastructure is essential for driver safety during mountain travel.
2
Evaluate the statement against standard traffic safety regulations and mountain hazard procedures.
Confirm that the statement accurately describes the purpose and construction of runaway escape ramps.
These ramps use loose gravel, sand, or upward slopes to safely dissipate kinetic energy when vehicle brakes fail.

Anahtar Kavram

Emergency Escape Ramps on Mountain Grades
Soru 4Soru →

While traveling on a wet road, your vehicle experiences a rear-wheel skid (oversteer). Place the following driver recovery steps in the correct chronological order from first to last.

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct sequence is: 1) Ease your foot completely off the accelerator pedal without slamming on the brakes, 2) Steer smoothly in the intended direction of travel (into the skid), and 3) Straighten the steering wheel as soon as the vehicle begins to realign.
When recovering from a rear-wheel skid, easing off the accelerator first removes driving torque and prevents further loss of traction. Next, steering in the direction you want the car to go points the front wheels into the skid to catch momentum. Finally, centering the steering wheel stabilizes the vehicle as tire grip returns and prevents counter-skidding.

Adım Adım Çözüm

1
Release the gas pedal gently.
Engine propulsion stops, helping tires regain grip.
Abrupt braking or accelerating worsens traction loss during a skid.
2
Steer toward the path of travel.
Front tires line up with the direction of motion.
Turning the wheel in the direction you want the front of the car to go corrects the rear slip.
3
Center the steering wheel as control returns.
Vehicle stabilizes straight in its lane.
Failing to straighten the wheel leads to a secondary skid in the opposite direction.

Anahtar Kavram

Rear-wheel skid recovery sequence
Soru 5Soru →

You are navigating a curve on a slush-covered road when your vehicle experiences a front-wheel skid (understeer), causing the car to continue straight despite the steering wheel being turned. In what sequential order should you perform the correct recovery actions?

Öğeleri doğru sıraya koymak için sürükleyin

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Cevap

The correct sequence for front-wheel skid (understeer) recovery is: first, ease off the accelerator without braking; second, slightly straighten the steering wheel to help the front tires regain traction; third, smoothly turn toward the intended path as grip returns; and fourth, gently reapply accelerator pressure once directional control is restored.
To recover from a front-wheel skid (understeer), a driver must first ease off the accelerator without braking to transfer weight forward. Next, easing back on the steering wheel reduces tire slip angle so the front tires can regain rolling grip. Once grip returns, steering smoothly into the curve directs the car along its path, followed by gentle acceleration to stabilize momentum.

Adım Adım Çözüm

1
Release the accelerator pedal gradually.
Engine torque drops and weight shifts forward to the front wheels.
Easing off throttle shifts weight to the front tires to encourage traction without locking them.
2
Unwind or slightly straighten the steering wheel.
The slip angle of the front tires decreases to match the vehicle's travel trajectory.
Tires turned beyond their traction limits will slide; lessening the steer angle restores rolling grip.
3
Steer smoothly along the intended path.
The vehicle responds to steering and follows the curve.
Front tire grip has been restored, allowing steering inputs to guide the vehicle again.
4
Reapply light accelerator pressure.
Vehicle momentum stabilizes.
Smooth acceleration maintains vehicle stability after directional recovery.

Anahtar Kavram

Front-wheel skid (understeer) recovery sequence
Tahmini Süre:1m 15s
Soru 6Soru →

If your vehicle's engine begins to overheat while driving, it is safe to immediately remove the radiator cap to help the system cool down faster.

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Cevap: False

Cevap

False. Never remove the radiator cap while the engine is hot, as pressurized boiling coolant can spray out and cause severe burns.
The statement is false because engine cooling systems remain under high pressure when hot. Removing the radiator cap from an overheated engine causes scalding coolant and steam to spray out under pressure, posing a severe danger of injury.

Adım Adım Çözüm

1
Identify the mechanical principles of an engine cooling system under operating temperature.
Recognize that hot coolant inside the radiator builds high pressure.
The closed-loop cooling system uses pressure caps to elevate the boiling point of coolant.
2
Evaluate the safety hazard of removing the radiator cap while hot.
Determine that opening a hot radiator cap causes explosive pressure release.
Sudden depressurization causes instant boiling and violent eruption of scalding liquid and steam.

Anahtar Kavram

Engine Overheating and Radiator Safety Protocols
Soru 7Soru →

While accelerating onto a rain-slicked highway entrance ramp, your rear drive wheels lose traction, causing the back of your vehicle to fishtail. Which of the following is the correct immediate action to regain vehicle control?

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Cevap: Ease off the gas pedal smoothly and steer in the direction you want the front of the vehicle to go.

Cevap

Ease off the gas pedal smoothly and steer in the direction you want the front of the vehicle to go.
During an acceleration skid on slippery pavement, the drive wheels lose traction because engine power exceeds available tire grip. Removing foot pressure from the gas pedal reduces engine torque to the drive wheels, allowing tire tread to re-engage with the road surface, while steering toward the intended path brings the vehicle back into alignment.

Adım Adım Çözüm

1
Identify the cause of traction loss (acceleration/power skid).
Excess power delivered to drive wheels caused rear tires to spin and slide.
Recognizing wheel spin dictates the corrective foot-pedal control needed.
2
Modulate the foot pedals by releasing pressure from the accelerator without slamming the brakes.
Engine power to drive wheels drops, allowing tires to resume rolling friction.
Sudden braking transfers weight forward unnaturally and worsens rear traction loss.
3
Steer smoothly in the intended direction of travel.
Front tires guide the vehicle back into alignment as rear traction recovers.
Corrective steering aligns tire rotation with vehicle momentum.

Anahtar Kavram

Acceleration Skid Recovery
Tahmini Süre:1m 0s
Soru 8Soru →

You are driving on a roadway and observe orange barrels and a flashing arrow board directing traffic out of your current lane ahead. What is the correct procedure for safely navigating this work zone lane closure?

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Cevap: Merge into the designated open lane as early and safely as possible before reaching the channelizing taper.

Cevap

Merge into the designated open lane as early and safely as possible before reaching the channelizing taper.
When approaching a work zone lane closure indicated by orange barrels and flashing arrow boards, drivers must adjust their speed and merge into the open lane early and safely. This ensures orderly traffic flow and protects construction personnel.

Adım Adım Çözüm

1
Recognize work zone warning devices and lane control signals
Identify that orange barrels and a flashing arrow board indicate an upcoming lane closure.
Early detection gives adequate time to adjust speed and plan a safe lane change.
2
Execute a timely and cautious lane change
Check mirrors, turn on signals, and merge smoothly into the open lane well before reaching the taper of barrels.
Early merging keeps traffic flowing smoothly and avoids emergency maneuvers near construction workers.

Anahtar Kavram

Work Zone Traffic Control Devices and Early Merging Behavior
Soru 9Soru →

In a designated highway construction work zone, posted reduced speed limits apply continuously whenever displayed, even if construction workers are not physically visible on the roadway.

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Cevap: True

Cevap

True. Drivers must obey posted work zone speed limits whenever displayed, regardless of whether workers are physically present or visible.
Posted speed limits in construction zones are legally mandatory whenever displayed. The reduced speed requirement accounts for static hazards like narrow lanes, sudden detours, and reduced stopping distances, which remain dangerous regardless of worker activity.

Adım Adım Çözüm

1
Identify the legal regulation regarding speed limits in temporary traffic control zones.
Posted regulatory signs in work zones establish enforceable legal speed limits continuous with their display.
Traffic safety regulations enforce speed reductions to protect motorists from altered road conditions as well as road crews.
2
Analyze whether worker presence is a required condition for speed limit enforcement.
Worker visibility is not a requirement; reduced lane widths, missing guardrails, uneven pavement, and equipment placement demand lower speeds at all times.
Roadway hazards exist continuously throughout the construction area until normal lane configurations are restored.

Anahtar Kavram

Work Zone Regulatory Speed Compliance
Soru 10Soru →

When driving on a multi-lane roadway toward an active construction zone, a driver notices an electronic arrow board mounted on a stationary service vehicle displaying four flashing corner lights in a caution pattern rather than a directional arrow. What action should the driver take in response to this display?

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Cevap: Proceed through the area with heightened caution within the current lane while adjusting speed for work zone conditions.

Cevap

The driver should proceed through the area with heightened caution within the current lane while adjusting speed for work zone conditions.
Four flashing corner lights on an electronic arrow panel signify caution mode. This warns drivers of nearby construction or maintenance activities on or adjacent to the roadway, requiring increased awareness and speed control while staying in the current lane unless a lane shift is explicitly marked by channelizing devices.

Adım Adım Çözüm

1
Identify the electronic arrow board pattern.
Recognize that four flashing corner lights represent a caution display mode rather than a directional merge arrow (left or right).
Arrow panel displays serve distinct functions: directional arrows command lane merges, while flashing bar/corner patterns warn of work or hazards without requiring a lane shift.
2
Determine appropriate vehicle control and lane positioning.
Maintain the current lane, scan ahead for workers or equipment, and reduce speed safely as required by road conditions.
Caution mode alerts drivers to stay vigilant and maintain safe spacing without executing unnecessary or hazardous evasive maneuvers.

Anahtar Kavram

Interpretation of electronic arrow board caution modes in work zones
Tahmini Süre:1m 0s
Soru 11Soru →

When driving in dense fog, activating your high-beam headlights helps cut through the moisture and improves forward visibility.

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Cevap: False

Cevap

False. Drivers must use low-beam headlights or fog lights in fog, as high-beam lights reflect off atmospheric moisture and cause reflection glare that impairs vision.
High-beam headlights reflect light off moisture droplets back into the driver's line of sight, creating severe glare. Low-beam headlights or fog lights must be used in reduced visibility conditions.

Adım Adım Çözüm

1
Evaluate the effect of high-beam lights in fog.
High-beam light shines straight into suspended water droplets, creating light scattering and blinding glare.
Fog acts like tiny mirrors bouncing bright light directly back into the driver's eyes.
2
Identify the correct headlight setting according to DMV safety rules.
Low-beam headlights or fog lights direct light downward toward the road surface.
Angling light down minimizes reflective glare and safely illuminates the roadway ahead.

Anahtar Kavram

Headlight usage in reduced visibility conditions
Soru 12Soru →

When a vehicle's tires drop off the edge of the paved road onto a lower shoulder, the driver should immediately turn the steering wheel hard toward the roadway to return to the lane quickly.

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Cevap: False

Cevap

False. Drivers should avoid sudden steering inputs when experiencing a pavement edge drop-off.
The statement is false. The recommended response to a pavement drop-off is to ease off the accelerator, keep the wheel straight until speed is reduced, and then turn smoothly back onto the road.

Adım Adım Çözüm

1
Maintain control of the vehicle steering
Keeps the vehicle traveling straight along the shoulder without straddling the pavement edge dangerously
Abrupt movements while tires are on uneven surfaces cause traction instability
2
Ease off the accelerator pedal gradually
Reduces vehicle speed safely without sudden weight transfer
Slowing down minimizes the risk of loss of control when re-entering the roadway
3
Straddle the pavement edge and steer gently back when clear and slow
Allows smooth re-entry into the traffic lane once speed is reduced
Gentle steering angles prevent the vehicle from overshooting into opposing lanes

Anahtar Kavram

Pavement edge drop-off recovery procedure
Soru 13Soru →

When driving through dense fog where forward visibility is severely restricted, engaging cruise control is recommended to maintain a steady speed and reduce driver fatigue.

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Cevap: False

Cevap

False
The statement is false because cruise control should never be used in dense fog or reduced visibility conditions. Operating cruise control prevents immediate natural deceleration when lifting off the accelerator and can cause loss of vehicle control on damp, fog-slicked roadways.

Adım Adım Çözüm

1
Evaluate the environmental driving conditions described.
Dense fog reduces visibility and creates moisture buildup on the roadway surface.
Hazardous conditions demand immediate driver responsiveness and maximal vehicle control.
2
Assess the mechanical impact of using cruise control in low-visibility/wet conditions.
Cruise control maintains throttle input automatically, which prevents rapid engine-braking deceleration and can lead to hydroplaning or delayed stopping times.
Safe driving principles require full manual throttle control to adjust speed dynamically according to changing visibility.
3
Determine the true/false validity of the statement.
The statement claims cruise control is recommended in fog, which contradicts traffic safety standards.
Driver assistance systems like standard cruise control must be disengaged during adverse weather and reduced visibility.

Anahtar Kavram

Prohibition of Cruise Control in Reduced Visibility and Adverse Conditions
Soru 14Soru →

When driving through heavy fog where visibility is significantly reduced, which headlight setting should you use?

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Cevap: Low-beam headlights

Cevap

Use low-beam headlights.
Low-beam headlights direct light down onto the road, avoiding reflection off water vapor and keeping the roadway visible to the driver.

Adım Adım Çözüm

1
Determine the optimal headlight beam setting for fog and reduced visibility conditions.
Select low-beam headlights (and front fog lights if available).
Low beams cast light downward onto the roadway, preventing light from scattering off moisture droplets back into the driver's eyes.

Anahtar Kavram

Headlight usage in fog and reduced visibility
Soru 15Soru →

While driving on a rural highway, you enter a dense fog bank that drastically reduces visibility to less than 200 feet. Which of the following actions should you take to drive safely under these conditions?

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Cevap: Switch to low-beam headlights, slow down below the posted speed limit, and increase your following distance behind the vehicle ahead.

Cevap

Switch to low-beam headlights, slow down below the posted speed limit, and increase your following distance behind the vehicle ahead.
The correct safety response in fog is to use low-beam headlights (or fog lights), reduce speed according to the Basic Speed Law, and expand following distance to allow adequate reaction time.

Adım Adım Çözüm

1
Assess environmental visibility and lighting requirements
Identify that dense fog reduces visibility, requiring low-beam headlights (or fog lights) rather than high beams.
High-beam lights reflect off airborne water droplets directly into the driver's eyes, creating visual glare.
2
Apply the Basic Speed Law
Reduce vehicle speed below the posted maximum speed limit to suit current road conditions.
The Basic Speed Law mandates driving at a safe speed for existing conditions regardless of posted numerical limits.
3
Adjust spatial safety buffer zone
Increase following distance from the standard 3-4 seconds to a larger gap.
Lower visibility requires more time and space to perceive and react to potential hazards ahead.

Anahtar Kavram

Low-beam headlight usage and speed adjustment under Basic Speed Law in reduced visibility conditions
Tahmini Süre:1m 0s
Soru 16Soru →

When forced to pull completely off the roadway and stop due to dense fog, you should keep your foot pressed on the brake pedal so that approaching drivers can see your brake lights.

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Cevap: False

Cevap

False. When pulling off the road in severe fog, drivers should turn off all main exterior lights and remove their foot from the brake pedal once safely stopped so following traffic does not mistake the vehicle for moving traffic and steer off the roadway.
The statement is false because keeping your foot on the brake pedal illuminates the brake lights, which can trick drivers approaching from behind into believing your vehicle is still driving in a travel lane, causing them to steer off the road and collide with your stopped car.

Adım Adım Çözüm

1
Evaluate the psychological effect of brake lights on other drivers in dense fog conditions.
Determined that motorists driving through reduced visibility frequently track and follow the lights of vehicles ahead to stay on course.
Visual references are severely limited, making active light sources the primary cue drivers use for spatial orientation.
2
Identify proper parking protocols when stopping off the pavement during severe low-visibility hazards.
Recognized that holding the brake pedal keeps brake lights illuminated, creating a dangerous trap where trailing cars follow the lights off the road.
Vehicles stopped off the roadway must eliminate active travel lights (like brake lights) and set emergency brakes to prevent rear-end collisions.

Anahtar Kavram

Safe Vehicle Positioning and Illumination When Pulled Over in Dense Fog
Soru 17Soru →

You are traveling at 55 mph on a multi-lane expressway when you suddenly encounter a dense bank of sea fog that reduces forward visibility to less than 50 feet. Traffic is closely following behind your vehicle. Under standard traffic laws and defensive driving principles, which sequence of actions should you take to safely handle this situation?

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Cevap: Decelerate gradually without sudden hard braking, ensure low-beam headlights and hazard warning lights are active, and pull completely off the traveled portion of the road before stopping.

Cevap

Gradually decelerate without hard braking, activate low-beam headlights and hazard lights, and safely pull completely off the traveled portion of the roadway.
Gradually slowing down prevents trailing vehicles from colliding with you, using low beams minimizes light reflected back into your eyes, and pulling completely off the paved roadway removes your vehicle from the path of oncoming traffic in dense fog.

Adım Adım Çözüm

1
Assess visibility and speed
Recognize that 50 feet of visibility renders a speed of 55 mph extremely hazardous.
The Basic Speed Law dictates that you must never drive faster than is safe for current visibility conditions, regardless of posted limits.
2
Control vehicle speed smoothly and select proper lighting
Ease off the accelerator to decelerate gradually while ensuring low-beam headlights (and fog lights if equipped) are turned on.
Sudden braking could cause trailing traffic to rear-end you, and high beams bounce off moisture droplets back into your eyes, causing blinding glare.
3
Remove the vehicle from the roadway
Signal, check mirrors, pull completely past the right shoulder line off the pavement, turn on hazard flashers, and turn off foot brake lights when parked.
Stopping inside a live lane or on an inner shoulder puts you directly in the path of incoming vehicles that may drift out of their lanes.

Anahtar Kavram

Basic Speed Law compliance and safe emergency exit procedures in zero-visibility fog conditions.
Soru 18Soru →

While driving on a wet highway during heavy rain, your vehicle starts to hydroplane and lose traction. What action should you take to safely regain control of the vehicle?

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Cevap: Gradually ease off the accelerator and keep the steering wheel straight until traction is restored.

Cevap

Gradually ease off the accelerator and keep the steering wheel straight until traction is restored.
The correct response when hydroplaning is to smoothly ease your foot off the gas pedal while keeping the steering wheel pointed straight ahead. This allows the vehicle to slow down naturally so that tire treads can clear standing water and re-establish direct contact with the road surface.

Adım Adım Çözüm

1
Recognize the loss of tire contact with the road surface.
Identify that the vehicle is hydroplaning.
Promptly recognizing hydroplaning prevents panic reactions like slamming on the brakes.
2
Slowly release pressure from the accelerator pedal.
The vehicle decelerates smoothly without wheel lockup.
Gradual speed reduction enables the tire tread to channel water away and regain contact with the pavement.
3
Hold the steering wheel firmly and point in the direction of travel.
The vehicle maintains directional stability until tire grip returns.
Sudden turning maneuvers while tires are skimming on water can cause an uncontrollable spin once traction re-engages.

Anahtar Kavram

Hydroplaning Recovery Technique
Tahmini Süre:45s
Soru 19Soru →

You are driving along a two-lane road during heavy morning fog that suddenly restricts your forward visibility to under 100 feet. A vehicle ahead of you slows down, and its taillights are barely visible. Which of the following actions is the safest and correct driving response?

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Cevap: Increase your following distance and focus your vision on the right edge line of the road to guide your path.

Cevap

Increase your following distance and focus your vision on the right edge line of the road to guide your path.
The correct action is to drop back to increase your following distance and use the right white edge line of the road as a visual guide. This protects against rear-end crashes and prevents you from accidentally following a drifting vehicle off the road.

Adım Adım Çözüm

1
Evaluate the visibility hazard
Recognize that visibility under 100 feet requires immediate speed reduction and extra spatial buffers.
Dense fog dramatically lowers reaction times and hides obstacles.
2
Determine the proper optical reference point and light settings
Use low-beam headlights and look toward the right fog line (painted edge line) of the lane.
Staring directly at the taillights of the car ahead causes visual fatigue, leads to unintended tailgating, and risks following them if they drift off course.
3
Apply the Basic Speed Law and safe following distance principles
Reduce speed below the posted limit and widen following distance.
Stopping distance must be well within the visible clear distance ahead.

Anahtar Kavram

Defensive driving practices and visual positioning in dense fog
Tahmini Süre:1m 0s
Soru 20Soru →

Using cruise control while driving on wet or rain-slick roads increases the risk of losing vehicle control due to hydroplaning.

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Cevap: True

Cevap

True
Driver handbooks and highway safety authorities explicitly advise disabling cruise control on wet or slippery pavement because automated acceleration during hydroplaning can lead to severe skidding or loss of control.

Adım Adım Çözüm

1
Identify vehicle behavior when cruise control is engaged on wet roads.
Cruise control continuously supplies engine power to maintain the selected set speed.
Automated systems cannot detect standing water or loss of surface friction.
2
Evaluate how cruise control interacts with hydroplaning.
When tires lift off the road surface on a layer of water, cruise control may accelerate the spinning wheels, resulting in a sudden loss of steering and braking control.
Safety regulations advise turning cruise control off in heavy rain or wet conditions to allow manual throttle modulation.

Anahtar Kavram

Cruise control restriction during wet road traction loss
Sayfa 1 / 13Sonraki