A long straight truck approaches a deep drainage dip in an unpaved yard. The sides and overhead path are clear. What additional clearance must the driver assess?
Correct answer: Whether the underside or ends of the truck could strike or hang up in the dip
Space beneath a commercial vehicle can be small, especially under load. Drainage depressions can make vehicle ends drag or cause a hang-up. Side and overhead clearance do not establish adequate ground clearance; do not use speed to test it.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical41, printed2-17; 2.7.5 Space Below. ↗
A straight-truck driver plans to swing left before beginning a tight right turn. What particular conflict can that early swing create?
Correct answer: A following driver may think the truck is turning left and enter the space on its right
An early swing to the left can mislead a following driver into passing on the right, where the truck will turn. Plan the maneuver to avoid creating that gap and conflict. This question identifies the hazard; it does not authorize entering another lane regardless of traffic.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical42, printed2-18; 2.7.6 Space for Turns - Right Turns; Figure2.13. ↗
A straight-truck driver is deciding whether a gap permits crossing an intersection. The front bumper could reach the far side before an approaching car arrives. What else is essential?
Correct answer: Enough time and space for the entire truck to clear the conflicting path
A large vehicle needs room for its full length and may accelerate slowly. Before starting across, make sure it can get completely through before conflicting traffic reaches it. Cab clearance alone is not sufficient.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical42, printed2-18; 2.7.7 Space Needed to Cross or Enter Traffic. ↗
From a safe distance, a truck driver sees a cardboard box lying in the travel lane. What assumption should be avoided?
Correct answer: Its light outer material proves that driving over it cannot damage the truck
A box or sack may contain solid or heavy material capable of damaging tires, rims or other parts. Recognize the potential hazard early enough to plan a safe response; do not assume the package is harmless or make an unchecked swerve.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical43, printed2-19; 2.8.2 Hazardous Roads - Foreign Objects. ↗
A delivery worker beside a parked van is carrying packages that block the worker's view toward traffic. What should an approaching truck driver anticipate?
Correct answer: The worker may step into the road without seeing the truck
Packages and vehicle doors can obstruct a delivery worker's view. Be prepared for an unexpected step or movement into the lane. A large vehicle can still go unnoticed by a person whose sightline is blocked.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical43, printed2-19; 2.8.3 Drivers Who Are Hazards - Delivery Trucks Can Present a Hazard. ↗
A bicyclist ahead repeatedly checks over a shoulder, although no turn signal is visible. How should a commercial driver use that observation?
Correct answer: Treat it as a possible clue to a turn or lane movement and allow room
Head and body movements can indicate that a rider is considering a turn or lane change. They are clues, not guarantees of a particular path. Preserve space and remain prepared instead of waiting for a formal signal before noticing the risk.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical44, printed2-20; 2.8.3 Drivers Who Are Hazards - Driver Body Movement as a Clue. ↗
A driver of a CMV subject to the federal hand-held-phone rule is stopped at a red light on the highway. There is no emergency, and the driver wants to hold a phone for a routine voice call. Does that pause remove the restriction?
Correct answer: No; being temporarily stopped for traffic still counts as driving under the rule
For 49 CFR 392.82, driving includes temporary traffic and signal stops. It differs from moving off or to the side of the highway and halting where the vehicle can safely remain. The emergency-services exception is not involved in this routine-call scenario.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical46, printed2-22; 2.9.4 Cell/Mobile Phones; current49CFR392.82(a)-(c) supplies the temporary-traffic-stop definition and emergency exception, observed2026-09-13. ↗
A truck's windshield seemed clear enough at midday, but dirt on it scatters headlights into glare at night. What is the appropriate preparation before further night driving?
Correct answer: Clean the windshield on both sides and keep the mirrors clean
Dirt on glass can produce glare when struck by bright light. Clean both the inside and outside of the windshield, along with the mirrors. A pane that seemed acceptable in flat daylight may still reduce visibility at night.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical50, printed2-26; 2.11.4 Vehicle Factors - Windshield and Mirrors. ↗
An angry motorist tries to provoke a truck driver into speeding up to prevent a pass. A safe opportunity exists to let the motorist go ahead. What is the better response?
Correct answer: Maintain safe control, avoid the challenge and let the motorist move away
Do not challenge an aggressive driver by accelerating or competing for position. Avoid retaliation and create separation when safe. The scenario does not call for a sudden lane change or stopping to confront the motorist.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical48, printed2-24; 2.10.3 What You Should Do When Confronted by an Aggressive Driver. ↗
A drowsy truck driver has reached a safe rest area. Opening the window briefly made the driver feel more awake. What should guide the decision about continuing?
Correct answer: A window or loud radio can mask tiredness without curing it; rest before resuming safely
Do not treat a short-lived feeling of alertness as recovery from fatigue. FMCSA specifically rejects window and radio tricks as effective cures. At the safe stopping place provided here, get adequate rest and do not resume while unsafe; no fixed nap duration or hours-of-service rule is prescribed.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical50, printed2-26; 2.11.2 Driver Factors - Maintaining alertness while driving, continuing physical49/printed2-25; qualified by current FMCSA Driver Fatigue tips1/6 and49CFR392.3. ↗
In fog that is still light enough for safe travel at a reduced speed, a truck driver sees two taillights ahead and assumes they trace the lane. Why is that assumption unsafe?
Correct answer: The lights could belong to a vehicle stopped off the roadway
A vehicle visible through fog may be on the roadside rather than in the travel lane. Do not blindly follow its lights. Use a safe speed for actual visibility, and discontinue travel at a safe location if conditions no longer permit safe operation.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical51, printed2-27; 2.12 Driving in Fog - roadside vehicle lights; current49CFR392.14 supplies hazardous-condition operation limits and passenger-safety qualification. ↗
The truck's windows are clear after a freezing night, but ice remains on the handholds and access steps. What remains to be done before normal use?
Correct answer: Remove the ice and snow from the steps and handholds
Winter preparation includes safe access surfaces, not only clear windows. Remove ice and snow from steps, handholds and deck plates to reduce slipping. This is not an instruction to climb on unsuitable parts or use makeshift loose coverings.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical52, printed2-28; 2.13.1 Vehicle Checks - Hand Holds, Steps, and Deck Plates. ↗
A truck's tires were properly set to the specified cold pressure before departure. At a routine safe stop after driving in heat, a normal temperature-related rise is measured, with no failure symptoms. Should air be released simply to restore the earlier cold reading?
Correct answer: No; releasing air while hot can leave the tires underinflated after they cool
Tire pressure rises with temperature. Do not bleed off that normal increase to imitate the cold reading; pressure will fall as the tire cools. Follow the specified cold-pressure guidance and separately investigate abnormal heat, damage or other warning signs.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical53, printed2-29; 2.14.1 Vehicle Checks - Tires. ↗
During very hot weather, shiny patches of tar have risen to the road surface ahead of a truck. What should the driver recognize?
Correct answer: The tar patches may be slippery even though no rain has fallen
Tar that rises or bleeds to the surface in hot weather can be slippery. Dry weather alone does not establish good traction. Recognize the surface change early and adjust smoothly to the actual conditions.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical53, printed2-29; 2.14.2 Driving - Watch for Bleeding Tar. ↗
A truck driver approaching a railroad crossing has not heard a train horn. Which conclusion is justified?
Correct answer: The driver must still look and assess the tracks; a train may not be audible
A train may not sound its horn at some crossings, and cab noise can mask a horn. Silence is not permission to cross. Continue the required visual checks and obey the crossing controls and any applicable stopping duty.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical55, printed2-31; 2.15.3 Driving Procedures - Don't Expect to Hear a Train. ↗
A manual-transmission straight truck has satisfied all applicable stopping requirements, and the railroad crossing is safe and clear for its full length. What gear plan follows the manual's crossing guidance?
Correct answer: Select a suitable gear before entry and avoid shifting while crossing
Plan the crossing so the truck can complete it without a gear change on the tracks. This avoids risking a missed shift or interrupted movement in the crossing. The question assumes a safe, clear crossing and does not relax any mandatory stop or clearance requirement.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical55, printed2-31; 2.15.5 Crossing the Tracks - Do not shift gears while crossing railroad tracks. ↗
A driver knows which gear a particular truck used to climb a hill. Is that alone a reliable way to choose its gear for the descent?
Correct answer: No; the correct descent gear depends on the actual vehicle and conditions and may be lower
The manual explains why a truck's climbing gear is not a universal descent rule: engine power, drivetrain losses and vehicle design affect the comparison. Learn the appropriate gearing for the actual truck and descent before starting down; do not coast in neutral or force a high-speed shift.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical56, printed2-32; 2.16.2 Select the Right Gear before Starting Down the Grade, old/new truck comparison. ↗
A truck has lost effective braking on a steep descent. A clearly marked truck escape ramp is available on the route ahead. What should the driver prioritize?
Correct answer: Use the available escape ramp instead of continuing toward worsening danger
An escape ramp is intended to arrest a runaway vehicle. The manual advises using an available ramp after downhill brake failure rather than passing it and allowing speed and risk to increase. No brake-actuator recovery or unverified ramp-design instruction is given.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical58, printed2-34; 2.17.3 Brake Failure - Brake Failure on Downgrades; also escape-ramp planning physical57/printed2-33. ↗
A straight truck's yellow ABS malfunction lamp completed its normal startup check, then comes on and remains lit while the truck is underway. What does that indicate?
Correct answer: An ABS fault may have reduced antilock control and the system needs attention
A newly illuminated malfunction lamp while underway can indicate loss of ABS control. It is not a normal cycling indicator and does not by itself prove all foundation braking is lost. Arrange service and follow the vehicle's instructions; any separate braking symptoms require their own response.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical59, printed2-35; 2.18.3 How to Know If Your Vehicle Is Equipped with ABS;2.18.7 continuation physical60/printed2-36. ↗
Two otherwise comparable stopping situations are being discussed, one with working ABS and one without. What claim about the ABS-equipped truck should the driver reject?
Correct answer: Working ABS guarantees a shorter stopping distance in every situation
ABS helps preserve control by limiting wheel lock, but it does not necessarily shorten stopping distance. Do not use its presence to assume a guaranteed distance advantage or reduce safety margins. This does not teach pumping, stab braking or a universal emergency pedal sequence.
Source: North Carolina Commercial Driver's License Manual, 2005 CDL Testing System, Version July 2014; current NCDMV-linked 162-page PDF, metadata modified August 25, 2026; Section2 Driving Safely, physical60, printed2-36; 2.18.8 Safety Reminders - ABS won't necessarily shorten stopping distance; related overview physical59/printed2-35. ↗
