A mechanic has repaired a defect. Before driving the commercial vehicle, who must still be satisfied that its required equipment is in safe working order?
Correct answer: The driver
The driver's before-driving responsibility remains even when a mechanic has carried out repairs. Do not operate with an unsafe defect.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.1.5, Seven-step Inspection Method > Step 7; unsafe defects; printed p. 2-9, section-PDF physical page 9. Corroboration: 49 CFR 392.7(a), equipment inspection and use, current through 2026-09-10. ↗
Why is excessive steering-wheel play a serious inspection defect?
Correct answer: It can make the vehicle difficult to steer
Excessive play can prevent precise steering control and must be investigated.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.1.3, What to Look For > Steering System Defects; printed p. 2-2, section-PDF physical page 2. ↗
How should speed be chosen when fog or darkness limits the view ahead?
Correct answer: So the vehicle can stop within the visible distance
A driver must always be able to stop within the distance that can be seen clearly.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.6.4, Speed and Distance Ahead; printed p. 2-21, section-PDF physical page 21. ↗
When a large vehicle needs extra room to complete a right turn, what should the driver avoid doing at the start?
Correct answer: Swinging wide to the left
A left swing can invite a following vehicle to pass on the right and enter the truck’s turning path.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.7.6, Space for Turns > Right Turns; printed p. 2-24, section-PDF physical page 24. ↗
Where should the heaviest cargo generally be placed to reduce rollover risk?
Correct answer: As low as possible
A lower center of gravity improves stability, especially in curves and emergency maneuvers.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 3, 3.2.3, Don't Be Top-Heavy; printed p. 3-2, section-PDF physical page 2. ↗
You must back into an unfamiliar loading space. What should you do before beginning the maneuver?
Correct answer: Get out and examine the planned path, including side and overhead clearance
Inspect the complete path before backing. Walking around lets you identify hazards and clearances that may not be visible from the driving position.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.2.4, Backing Safely > Look at Your Path; printed p. 2-12, section-PDF physical page 12. ↗
A vehicle appears small and distant in your convex mirror. What should you remember before judging the available gap?
Correct answer: The vehicle can be closer than its mirror image suggests
Convex mirrors provide a wider view, but objects appear smaller and farther away than they really are. Allow for this distortion when judging traffic position.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.4.2, Seeing to the Sides and Rear > How to Use Mirrors; printed p. 2-15, section-PDF physical page 15. ↗
A following driver wants to pass your truck. Should you wave them around as a guarantee that the road is clear?
Correct answer: No, let that driver make their own safe passing decision
Do not direct other traffic into a pass; you cannot guarantee the maneuver will remain safe.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.5.1, Signal Your Intentions > Don't Direct Traffic; printed p. 2-16, section-PDF physical page 16. ↗
You keep your hands on the wheel but become absorbed in a stressful conversation. What type of distraction can this create?
Correct answer: Mental distraction from driving
Attention can leave the driving task even when your eyes and hands appear correctly positioned.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.9, Distracted Driving: mental distraction; printed p. 2-28, section-PDF physical page 28. ↗
Why is a leaking exhaust especially dangerous when the cab windows are closed?
Correct answer: Carbon monoxide may accumulate in the cab
Check exhaust defects; a closed cab can retain poisonous exhaust gases.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.13.1, Vehicle Checks > Exhaust System; printed p. 2-34, section-PDF physical page 34. ↗
Dark patches of tar have risen to the road surface in extreme heat. What hazard should you expect?
Correct answer: Reduced traction on the slick patches
Heat-softened surface tar can be slippery.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.14.2, Driving > Watch for Bleeding Tar; printed p. 2-36, section-PDF physical page 36. ↗
The front wheels slide and the truck continues straight despite steering input. What should you avoid?
Correct answer: Adding more harsh steering or braking
A front-wheel skid needs traction recovery; greater steering force does not create grip.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.19.3, Front-wheel Skids; printed p. 2-48, section-PDF physical page 48. ↗
Why should you avoid opening the hood fully during an engine fire?
Correct answer: It can feed oxygen to the fire
Shut the engine off when safe and avoid actions that intensify the fire.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.21.3, Fire Fighting > Keep the Fire from Spreading; printed p. 2-49, section-PDF physical page 49. ↗
What is the purpose of blocks secured snugly around cargo?
Correct answer: Prevent the cargo from sliding
Blocking restrains movement rather than merely filling unused cargo space.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 3, 3.3.1, Blocking and Bracing; printed p. 3-3, section-PDF physical page 3. ↗
Why is suspended meat cargo a special concern on an off-ramp?
Correct answer: It can swing and make a high load unstable
The suspended load calls for conservative cornering speed.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 3, 3.4.2, Hanging Meat; printed p. 3-4, section-PDF physical page 4. ↗
How should you determine suitable shift points for an unfamiliar commercial vehicle?
Correct answer: Learn its specified engine-speed and road-speed ranges
Shift patterns and useful rpm ranges vary between vehicles.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.3.1, Manual Transmissions > Knowing When to Shift Up; printed p. 2-12, section-PDF physical page 12. ↗
You see dense fog ahead while approaching a safe truck stop. What is the preferable choice?
Correct answer: Leave the roadway safely and wait for visibility to improve
A safe off-road waiting area is preferable to entering severely limited visibility.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.12, Driving in Fog; printed p. 2-33, section-PDF physical page 33. ↗
A hydraulic service-brake pedal goes to the floor. Which action may briefly restore hydraulic pressure?
Correct answer: Pump the brake pedal while seeking a safe way to stop
This is a hydraulic-pressure-loss technique, not normal ABS braking or an air-brake recovery method. Use other appropriate emergency measures and stop.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.17.3, Brake Failure > Loss of Hydraulic Pressure; printed p. 2-43, section-PDF physical page 43. ↗
Your vehicle was operating normally yesterday. What inspection is needed for the next trip?
Correct answer: Inspect it before operating, including working clean lights and cargo securement
A routine before-trip inspection can reveal new defects. Check the required vehicle components and load; yesterday’s condition is not proof of today’s safety.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.1.2, Types of Vehicle Inspection > Pre-trip Inspection; 2.1.5 on printed 2-7 and 2-8; printed p. 2-1, section-PDF physical page 1. ↗
Why should a driver not use water on burning gasoline or energized electrical equipment?
Correct answer: It can spread burning gasoline or create an electrical-shock hazard
Use a suitable extinguishing agent only when safe and trained to do so. Withdraw and get emergency help if the fire or material is uncertain.
Source: New York State Commercial Driver's Manual CDL-10 (11/25), section 2, 2.21.3, Fire Fighting > Use the Right Fire Extinguisher; printed p. 2-50, section-PDF physical page 50. ↗
