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Ohio CDL General Knowledge study materials
Ohio CDL General Knowledge study resources

Ohio CDL General Knowledge practice questions

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Question 1General Knowledge

Under Ohio CDL rules, a driver must report a conviction for a serious traffic violation to the employer within how many days?

  1. 5 days
  2. 30 days Correct answer.
  3. 10 days
  4. 2 days

Explanation

Federal and Ohio CDL rules require a driver to notify the employer in writing within 30 days of any conviction for a serious traffic violation. The notification must include the date, location, and nature of the violation, and the employer in turn must report it to the state.

Question 2General Knowledge

Before backing a tractor-trailer, the safest first step is to:

  1. Turn on the four-way flashers
  2. Roll down the window
  3. Get out and check behind the vehicle Correct answer.
  4. Sound the horn three times

Explanation

Backing is the most dangerous routine maneuver because large blind spots hide people and objects. Getting out to check the area behind the unit before you begin is the only reliable way to confirm the path is clear, and you should back immediately after checking.

Question 3General Knowledge

What is the correct way to hold the steering wheel when driving a CMV?

  1. Both hands at 9 and 3 o'clock Correct answer.
  2. Both hands at the top of the wheel
  3. One hand at the top and one at the bottom
  4. Both hands at the bottom of the wheel

Explanation

Holding the wheel at roughly 9 and 3 o'clock gives steady control and keeps your arms clear of an inflating airbag. It also reduces the chance of hand or wrist injury if the wheel is jerked by a blowout or rough surface.

Question 4General Knowledge

When driving a vehicle with a manual transmission, how should you use the clutch when shifting gears?

  1. Hold the clutch pedal down while coasting downhill
  2. Press the clutch pedal fully before shifting and release it smoothly Correct answer.
  3. Press the clutch only halfway to speed the shift
  4. Shift without using the clutch at all

Explanation

The clutch must be pressed fully so the gears disengage cleanly, then released smoothly to avoid jerking the drivetrain. Riding or partially depressing the clutch causes slipping, heat, and premature wear. Coasting with the clutch depressed also removes engine braking control.

Question 5General Knowledge

What does the term 'gross vehicle weight rating' (GVWR) describe?

  1. The maximum safe loaded weight of the vehicle as built Correct answer.
  2. The weight of the trailer only
  3. The weight of the cargo alone
  4. The weight of the truck's axles

Explanation

GVWR is the maximum total weight of a single vehicle including its own weight, fuel, passengers, and cargo, as specified by the manufacturer. Exceeding it overloads brakes, tires, and suspension. It is not the same as the weight of the load or the trailer.

Question 6General Knowledge

Which of the following best describes the correct use of a retarder on a long downgrade?

  1. Use it to replace the service brakes entirely
  2. Use it only while the transmission is in neutral
  3. Use it with a lower gear and the service brakes as needed Correct answer.
  4. Use it only after the service brakes overheat

Explanation

A retarder helps control speed but cannot stop the vehicle, so you should shift to a lower gear and use the retarder along with the service brakes when needed. Coasting in neutral or relying on the retarder alone can lead to runaway speed on steep grades.

Question 7General Knowledge

When a CMV is equipped with ABS, what is the correct braking technique during a hard stop?

  1. Release the brake whenever the wheels lock
  2. Apply the parking brake instead
  3. Pump the brake pedal rapidly
  4. Apply steady firm pressure and steer as needed Correct answer.

Explanation

ABS prevents wheel lockup, so the driver should hold firm, steady pressure on the brake pedal and steer around the hazard. Pumping the pedal defeats the system's automatic modulation and lengthens stopping distance.

Question 8General Knowledge

What is the minimum following distance a CMV driver should maintain behind another vehicle under ideal conditions?

  1. Ten seconds
  2. Four seconds Correct answer.
  3. One second
  4. Two seconds

Explanation

Under ideal conditions, a CMV driver should leave at least one second for every 10 feet of vehicle length, which is about four seconds for a 40-foot vehicle at speeds under 40 mph. Add one more second for speeds above 40 mph and additional time for poor weather or heavy loads.

Question 9General Knowledge

When driving at night, which situation requires you to dim your high beams for an oncoming vehicle?

  1. An oncoming vehicle is within 500 feet Correct answer.
  2. You approach a curve
  3. You are following another vehicle within 200 feet
  4. You are on an unlit rural road

Explanation

Dim your high beams when an oncoming vehicle is within 500 feet to avoid dazzling its driver. The manual also calls for dimming when following another vehicle within 500 feet, but this question specifically asks about oncoming traffic. A curve or an unlit road alone does not establish that condition.

Question 10General Knowledge

When a tire blows out at highway speed, the driver should:

  1. Steer sharply to the shoulder
  2. Hold the wheel firmly and slow gradually Correct answer.
  3. Accelerate to stabilize the vehicle
  4. Brake hard immediately

Explanation

A blowout can pull the vehicle toward the failed tire, so the driver must grip the wheel firmly with both hands, keep the vehicle straight, and ease off the accelerator to slow gradually. Hard braking or sharp steering can cause a loss of control or rollover.

Question 11General Knowledge

How should a driver check that a trailer is properly coupled to the tractor?

  1. Listen for a click when backing under
  2. Check that the trailer lights work
  3. Look at the fifth wheel from the cab
  4. Pull the tractor forward gently with the trailer brakes set Correct answer.

Explanation

A pull test confirms the kingpin is locked in the fifth wheel: set the trailer brakes, release the tractor brakes, and pull gently forward. If the trailer holds, the coupling is secure. Visual or audible cues alone can be misleading.

Question 12General Knowledge

What is the purpose of the pre-trip inspection?

  1. To find problems that could cause a crash or breakdown Correct answer.
  2. To record fuel usage
  3. To satisfy insurance requirements
  4. To check the cargo weight

Explanation

The pre-trip inspection is required to catch defects such as low tires, faulty brakes, or burned-out lights before they cause a crash or breakdown. It also protects the driver from being placed out of service at a roadside inspection.

Question 13General Knowledge

When must a driver use the parking brake on a CMV?

  1. Only when parked on a hill
  2. Only when a trailer is attached
  3. Only when the engine is off
  4. Whenever the vehicle is parked Correct answer.

Explanation

The parking brake must be set whenever the vehicle is parked, whether on level ground or a grade, to prevent rolling. Relying on the transmission alone is unsafe and violates the rules.

Question 14General Knowledge

What is the safest action when a CMV driver becomes drowsy on a long trip?

  1. Stop and rest at a safe location Correct answer.
  2. Drive faster to arrive sooner
  3. Drink coffee and continue driving
  4. Open the window and turn up the radio

Explanation

Drowsiness impairs reaction time and judgment, and no amount of fresh air, music, or caffeine substitutes for rest. The only safe response is to pull over at a safe location and take a break or sleep.

Question 15General Knowledge

When approaching a railroad crossing in a CMV carrying hazardous materials, the driver must:

  1. Sound the horn and cross quickly
  2. Slow down and proceed if no train is visible
  3. Follow the vehicle ahead closely
  4. Stop before the crossing and check both directions Correct answer.

Explanation

Vehicles carrying hazardous materials, and most school buses, must stop before railroad crossings and confirm no train is approaching. Other CMVs must slow down and check, but the hazardous-materials stop is mandatory.

Question 16General Knowledge

What does a red triangle with a white center on the rear of a vehicle indicate?

  1. A hazardous materials load
  2. An oversized load
  3. A slow-moving vehicle Correct answer.
  4. A vehicle with air brakes

Explanation

The red-and-white triangle is the slow-moving vehicle emblem required on vehicles designed to travel at 25 mph or less on public roads. It warns faster traffic to slow down and pass with care.

Question 17General Knowledge

When should the driver of a placarded hazardous materials vehicle place warning devices after a stop?

  1. Only at night
  2. After calling the dispatcher
  3. Immediately upon stopping Correct answer.
  4. Within 10 minutes of stopping

Explanation

Warning devices such as reflective triangles must be placed immediately, within 10 minutes, whenever a placarded vehicle is stopped on a roadway or shoulder. Quick placement protects the stopped vehicle from approaching traffic.

Question 18General Knowledge

What is the proper way to check the coolant level on a CMV?

  1. Rely on the dashboard gauge only
  2. Remove the radiator cap while the engine is hot
  3. Open the drain valve briefly
  4. Check the level through the sight glass when the engine is cool Correct answer.

Explanation

Coolant is under pressure and can cause severe burns if the radiator cap is removed while the engine is hot. The level should be checked when the engine is cool, using the sight glass or overflow tank.

Question 19General Knowledge

When driving in fog, which lights should a CMV driver use?

  1. High beams
  2. Low beams Correct answer.
  3. Hazard flashers only
  4. Parking lights only

Explanation

Low beams aim down at the road and reduce glare reflected back by fog, rain, or snow. High beams bounce light off the moisture and make visibility worse, and parking lights alone are insufficient.

Question 20General Knowledge

What does the term 'out-of-service order' mean for a CMV driver?

  1. The driver must complete a written test
  2. The vehicle must be repaired before it can be driven
  3. The carrier must pay a fine
  4. The driver is prohibited from operating a CMV for a specified period Correct answer.

Explanation

An out-of-service order prohibits the driver from operating a CMV for a specified period, often due to serious violations such as excessive hours or alcohol use. Driving while out of service carries severe penalties and can lead to license suspension.

Question 21General Knowledge

How should cargo be secured on a flatbed trailer?

  1. With the trailer sides only
  2. With tiedown straps rated for the load weight Correct answer.
  3. By relying on the weight of the cargo
  4. With rope only

Explanation

Cargo must be secured with tiedowns that have an aggregate working load limit at least half the cargo weight, using straps or chains rated for the load. Adequate tiedowns prevent shifting, spillage, and crashes.

Question 22General Knowledge

What is the correct action when a CMV driver's blood alcohol concentration reaches 0.04 percent?

  1. The driver must wait one hour before driving
  2. The driver may drive only on rural roads
  3. The driver is considered intoxicated and prohibited from driving Correct answer.
  4. The driver may continue if under 0.08

Explanation

For CDL holders, a blood alcohol concentration of 0.04 percent or higher is a violation and the driver is prohibited from operating a CMV. The limit is lower than the 0.08 percent standard for non-commercial drivers.

Question 23General Knowledge

When making a right turn in a large CMV, the driver should:

  1. Turn sharply to clear the curb
  2. Turn from the left lane to swing wide
  3. Turn from the right lane and check the right side for pedestrians and cyclists Correct answer.
  4. Use the horn continuously during the turn

Explanation

Large vehicles must turn from the proper lane and watch the right side closely because the rear wheels track inside the front wheels. Swinging wide from the left lane invites vehicles to pass on the right and creates a crush hazard.

Question 24General Knowledge

What does a flashing yellow traffic signal mean?

  1. Proceed with caution Correct answer.
  2. Stop completely before proceeding
  3. Yield only to vehicles on the right
  4. Prepare to stop immediately

Explanation

A flashing yellow light means slow down and proceed with caution, watching for hazards and cross traffic. It does not require a full stop unless conditions or other signs demand one.

Question 25General Knowledge

When driving a CMV in strong crosswinds, the driver should:

  1. Open the windows to balance pressure
  2. Steer into the wind continuously
  3. Reduce speed and grip the wheel firmly Correct answer.
  4. Increase speed to stabilize the vehicle

Explanation

Crosswinds can push a high-profile vehicle out of its lane, especially when exiting a bridge or passing a gap. Reducing speed and holding the wheel firmly with both hands helps maintain control without overcorrecting.

Question 26General Knowledge

Under Ohio and federal rules, which drivers are required to hold a commercial driver license?

  1. Any driver who operates a pickup truck with a loaded weight of 8,000 pounds
  2. Any driver who operates a vehicle designed to carry 16 or more passengers, including the driver Correct answer.
  3. Any driver who operates a personal van for a church group
  4. Any driver who tows a utility trailer behind a car

Explanation

A CDL is required to operate a vehicle designed to transport 16 or more people including the driver, or a vehicle with a gross vehicle weight rating of 26,001 pounds or more. Any combination with a towed unit over 10,000 pounds also generally requires a CDL. Ordinary pickup trucks and personal vans normally fall below these thresholds.

Question 27General Knowledge

A driver holds a Class A license and wants to pull a trailer with a gross vehicle weight rating of 12,000 pounds behind a tractor with a GVWR of 30,000 pounds. What is true about this operation?

  1. The combination requires a Class A license because the towed unit exceeds 10,000 pounds Correct answer.
  2. The driver must obtain a hazardous materials endorsement before towing
  3. The driver may operate it on a Class C license because the combination is under 40,000 pounds
  4. The driver may operate it on a Class B license because the tractor is under 33,000 pounds

Explanation

A Class A license covers combinations in which the towed unit has a GVWR of more than 10,000 pounds, regardless of whether the tractor itself would qualify for Class B. Here the trailer exceeds that threshold, so Class A is required. Class B and Class C do not authorize towing a unit above 10,000 pounds.

Question 28General Knowledge

What is the correct way to perform an inspection of a vehicle's brake system before a trip?

  1. Build full pressure, then check for air loss and listen for leaks with the engine off Correct answer.
  2. Pump the pedal several times and drive off if it feels firm
  3. Check only that the pedal travels less than one inch
  4. Rely on the low-air warning buzzer to confirm the system is sound

Explanation

A proper brake check requires building system pressure, then observing the gauge with the engine off to confirm that air loss stays within the allowed limits and that no audible leaks are present. A firm pedal alone does not reveal leaks or a failing compressor. Warning devices only signal a problem after pressure has already dropped.

Question 29General Knowledge

When inspecting a vehicle's tires during a pre-trip inspection, which condition requires the vehicle to be placed out of service?

  1. A tire carrying slightly more pressure than the placard recommends
  2. A tire with a tread depth below the minimum or with a visible cord exposed Correct answer.
  3. A tire with a valve cap missing on one stem
  4. A tire with a small amount of mud on the sidewall

Explanation

Tires with tread depth below the minimum or with fabric or cord showing are unsafe and must be corrected before operation. Overinflation, road grime, and a missing valve cap do not by themselves make a tire unserviceable. The inspection focus is on structural integrity and legal tread depth.

Question 30General Knowledge

A driver must stop on a two-lane road at night because of an emergency. In what order should warning devices be placed?

  1. Place them all on the traffic side of the vehicle
  2. Place them only at the rear and skip the front
  3. Place them in front of the vehicle first, then behind it
  4. Place them behind the vehicle first, then toward the front and traffic side Correct answer.

Explanation

The standard sequence is to place warning devices behind the vehicle first, then toward the front, and finally on the traffic side, so approaching traffic is warned as quickly as possible. Devices are placed within specified distances depending on whether the stop is on a road, shoulder, or divided highway. Placing them in a different order delays warning to the drivers most at risk.

Question 31General Knowledge

What is the proper technique for backing a tractor-trailer when the driver cannot see directly behind the unit?

  1. Rely on the backup alarm to warn pedestrians
  2. Back slowly while watching only the left mirror
  3. Sound the horn continuously and back without assistance
  4. Use a helper as a spotter and stop when the helper is out of view Correct answer.

Explanation

When the area behind the vehicle is not visible, a spotter should guide the maneuver, and the driver must stop immediately if the spotter cannot be seen. Mirrors leave blind spots that a spotter covers. Horns and backup alarms warn others but do not substitute for direct guidance.

Question 32General Knowledge

A CMV approaches a hill crest where the road beyond is not visible. What should the driver do?

  1. Reduce speed and move to the right portion of the lane before reaching the crest Correct answer.
  2. Move to the left portion of the lane for a better view
  3. Maintain speed and stay in the center of the lane
  4. Accelerate to clear the crest quickly

Explanation

At a blind crest, oncoming traffic and obstacles beyond the crest cannot be seen, so the driver should slow down and keep to the right side of the lane. Staying centered or accelerating reduces the time available to react. Moving left places the vehicle closer to oncoming traffic.

Question 33General Knowledge

How should a driver position a CMV when entering a curve?

  1. Drift toward the outside of the curve to widen the path
  2. Accelerate through the curve to keep the trailer in line
  3. Slow down before the curve and stay in the lane without crossing the center line Correct answer.
  4. Begin braking after entering the curve to maintain control

Explanation

Speed should be reduced before the curve so that braking and steering are completed before the vehicle enters it, and the vehicle must remain within its lane. Braking inside a curve can cause a skid or loss of control. Drifting outside the lane risks a head-on or sideswipe crash.

Question 34General Knowledge

A loaded CMV's stopping distance is best described in which way?

  1. It decreases as the load increases because of added traction
  2. It stays the same as long as the brakes are in good condition
  3. It depends only on the reaction time of the driver
  4. It increases with speed and weight, so the driver must look farther ahead Correct answer.

Explanation

Stopping distance grows with both speed and weight because heavier loads and higher speeds require more braking force and distance. A well-maintained brake system does not cancel the physics of a heavy vehicle. Added traction does not shorten stopping distance, and reaction time is only one part of total stopping distance.

Question 35General Knowledge

How should a driver use the mirrors while driving a CMV in traffic?

  1. Check them regularly and before changing lanes or turning Correct answer.
  2. Check them only when the backup alarm sounds
  3. Check them only when a vehicle is directly ahead
  4. Check them only after completing a lane change

Explanation

Mirrors should be checked frequently and always before a lane change, turn, or merge so the driver knows what is beside and behind the vehicle. Checking only after a maneuver is too late to avoid a collision. Mirrors are not tied to the backup alarm.

Question 36General Knowledge

When may a driver use the left lane of a divided highway in a CMV?

  1. Only when carrying hazardous materials
  2. When passing another vehicle or when signs permit it Correct answer.
  3. Whenever the right lane has any traffic
  4. Whenever the driver wants a smoother ride

Explanation

On a divided highway, a CMV generally stays in the right lane and uses the left lane for passing or where signs direct otherwise. Lane choice is not based on comfort or minor traffic. Hazardous materials cargo does not grant special lane privileges.

Question 37General Knowledge

A driver's vehicle has a hazard that makes it unsafe to continue. What is the correct action?

  1. Stop in the travel lane and wait for a tow truck
  2. Turn on the four-way flashers and keep driving
  3. Continue to the destination if the vehicle can still move
  4. Stop in a safe place, set the parking brake, and place warning devices Correct answer.

Explanation

When a vehicle becomes unsafe, the driver must pull off the road to a safe location, secure the vehicle with the parking brake, and set out warning devices as required. Continuing to drive with a known hazard endangers the driver and others. Stopping in a travel lane creates a new hazard.

Question 38General Knowledge

A CMV is carrying a load that extends four feet beyond the rear of the vehicle. What is required?

  1. Nothing is required if the load is under six feet
  2. The load must be removed before the vehicle may move
  3. The driver must obtain a special permit for any rear overhang
  4. The overhanging load must be marked with a flag or warning device Correct answer.

Explanation

Loads that extend beyond the rear of a vehicle must be marked so other drivers can see the projection, typically with a flag or equivalent warning device. Rear overhang does not automatically require a permit, and it is not prohibited outright. The marking requirement protects following traffic.

Question 39General Knowledge

What is the primary purpose of securing cargo with tiedowns?

  1. To increase the legal weight the vehicle may carry
  2. To make the vehicle look orderly during inspection
  3. To keep the cargo from shifting or falling off during normal driving and emergencies Correct answer.
  4. To reduce the need for a pre-trip inspection

Explanation

Tiedowns hold cargo so it cannot shift, slide, or fall during braking, turning, and sudden maneuvers, protecting the driver and other road users. Securing cargo does not change the vehicle's legal weight limits. It also does not replace any part of the pre-trip inspection.

Question 40General Knowledge

A CMV driver is being tested for alcohol under suspicion. What does a refusal to submit to the test mean?

  1. The driver may continue driving until a court orders the test
  2. The driver is treated as having refused and faces license consequences Correct answer.
  3. The driver is automatically cleared of suspicion
  4. The driver may request a different type of test instead

Explanation

Refusing a required alcohol or drug test is treated as a refusal, which carries serious license and employment consequences. The driver cannot avoid the test by declining or by asking for a substitute. Refusal does not clear the driver of suspicion.

Question 41General Knowledge

How does alcohol affect a CMV driver's ability to judge distance and speed?

  1. It only affects vision at night
  2. It has no effect until the driver is legally intoxicated
  3. It impairs judgment of distance and speed even at low levels Correct answer.
  4. It improves alertness on long trips

Explanation

Alcohol impairs coordination, reaction time, and the ability to judge distance and speed, and these effects begin before a driver reaches the legal limit. It does not improve alertness. The impairment is not limited to night vision.

Question 42General Knowledge

A driver has been awake for many hours and begins to have trouble keeping the eyes open. What is the safest response?

  1. Drink coffee while continuing to drive
  2. Open the window and turn up the radio
  3. Stop in a safe place and rest before continuing Correct answer.
  4. Speed up to reach the destination sooner

Explanation

Difficulty keeping the eyes open is a sign of serious fatigue, and the only safe remedy is to stop in a safe place and rest. Fresh air, loud music, and caffeine are short-term measures that do not restore alertness. Speeding increases risk while fatigued.

Question 43General Knowledge

A driver must drive through a work zone with narrow lanes and workers present. What is the best practice?

  1. Ignore flaggers if the lane appears clear
  2. Follow the vehicle ahead closely to avoid cutting in
  3. Slow to the posted work-zone speed and increase following distance Correct answer.
  4. Maintain highway speed to pass through quickly

Explanation

In work zones the driver should obey the posted reduced speed limit and leave extra following distance because lanes are narrow and workers may enter the roadway. Maintaining highway speed or following closely reduces reaction time. Flaggers must be obeyed at all times.

Question 44General Knowledge

How should a driver approach a drawbridge that may open?

  1. Maintain speed to cross before the bridge opens
  2. Slow down and be ready to stop before reaching the bridge Correct answer.
  3. Stop on the bridge approach and wait for a signal
  4. Sound the horn and proceed without slowing

Explanation

Drawbridges can open without much warning, so the driver should slow down and be prepared to stop before the bridge. Maintaining speed or proceeding on a horn assumes the bridge will stay closed. Stopping on the approach without reason blocks traffic.

Question 45General Knowledge

What is the correct response when a traffic signal changes from green to yellow as a CMV approaches an intersection?

  1. Stop abruptly in the intersection
  2. Accelerate to clear the intersection before the light turns red
  3. Stop if it can be done safely, because a heavy vehicle needs more distance to stop Correct answer.
  4. Continue at the same speed regardless of the light

Explanation

A yellow signal warns that the light is about to turn red, so the driver should stop if stopping can be done safely. A heavy vehicle needs more stopping distance, so the decision should be made early. Accelerating or ignoring the light risks a crash, and stopping in the intersection blocks cross traffic.

Question 46General Knowledge

A CMV driver is involved in a crash that causes injury. What must the driver do first?

  1. Drive to the nearest terminal to report it
  2. Exchange information only if the other driver asks
  3. Leave the scene if the vehicle can still move
  4. Stop, render aid as needed, and notify authorities Correct answer.

Explanation

After a crash involving injury, the driver must stop, give reasonable aid, and notify the proper authorities. Leaving the scene or delaying the report is a serious violation. Reporting to a terminal does not replace notifying authorities at the scene.

Question 47General Knowledge

What does a driver need to check before crossing railroad tracks in a CMV that cannot clear the crossing completely?

  1. That the tracks are clear of snow before crossing
  2. That the crossing gate is up before proceeding
  3. That the vehicle's horn works before crossing
  4. That there is enough room on the far side to clear the tracks before starting across Correct answer.

Explanation

A CMV must not start across tracks unless there is room on the far side to clear them completely, because a long vehicle can be trapped on the tracks when traffic stops. Gate position and horn function are not the deciding factor. Snow on the tracks is not the primary concern.

Question 48General Knowledge

A driver must drive down a long, steep grade with a heavy load. What is the recommended approach?

  1. Shift to neutral to save fuel on the grade
  2. Use the service brakes continuously to hold a steady speed
  3. Descend in the highest gear to reduce engine wear
  4. Select a lower gear before starting down and use engine braking to control speed Correct answer.

Explanation

Before starting down a steep grade, the driver should select a gear low enough that engine braking holds a safe speed without continuous service brake use. Coasting in neutral removes engine braking and is dangerous. Continuous service braking can overheat the brakes and cause them to fade.

Question 49General Knowledge

A CMV is being driven in a tunnel with a hazardous materials placard. What is the driver's responsibility?

  1. Drive through the tunnel at highway speed to reduce exposure
  2. Follow the posted tunnel restrictions and any required routing Correct answer.
  3. Stop inside the tunnel to check the placards
  4. Assume tunnels never restrict placarded vehicles

Explanation

Placarded vehicles may be restricted from certain tunnels, so the driver must obey posted restrictions and required routing. Speeding through a tunnel increases risk, and stopping inside creates a hazard. Assuming no restrictions apply can result in a serious violation.

Question 50General Knowledge

When a CMV driver is being passed by another vehicle, what should the driver do?

  1. Accelerate to keep the passing vehicle alongside
  2. Move toward the center line to make room
  3. Maintain speed and lane position so the other driver can pass safely Correct answer.
  4. Flash the high beams to signal the pass is complete

Explanation

A driver being passed should hold a steady speed and stay in the lane so the passing driver can complete the maneuver predictably. Accelerating forces the passing vehicle to stay out longer. Moving toward the center line reduces the space available.