Correct: If any detectable amount of alcohol is found in your system while operating a commercial vehicle you will be placed out of service for a minimum of 24 hours.

Correct: Seeing hazards lets you be prepared by giving you more time to act before a situation becomes an emergency.

Correct: The on-the-road skills test measures your ability to control the vehicle in real traffic conditions — overall vehicle control is the core competency being evaluated.

Correct: When roads are slippery, turn off the retarder — it applies extra braking force to drive wheels that may already have poor traction, which can cause a skid.

Correct: Rough acceleration causes mechanical damage — when pulling a trailer, it can also damage the coupling, making smooth acceleration a matter of both safety and equipment protection.

Correct: Slow to a safe speed before entering the curve, then accelerate slightly as you come through — this maintains traction and keeps the vehicle stable.

Correct: If your personal vehicle driving privileges are suspended for traffic violations, you will also lose your CDL — the two privileges are linked under federal and state law.

Correct: Roundabouts require counterclockwise travel, yielding on entry, yielding to pedestrians, and keeping the tractor on the circulating roadway — clockwise is never correct.

Correct: If the ABS warning lamp comes on while driving, continue driving normally — your regular brakes still work, but you should have the ABS system checked soon.

Correct: Smoother surfaces are not a work zone hazard — narrower lanes, sharp turns, and distracted drivers are all genuine risks when people are working on the road.

Correct: Checking your mirrors regularly can help you spot a tire fire — a rear tire problem may show as smoke in the mirror before the driver feels or hears anything.

Correct: The one thing ABS does prevent is wheel lockup during hard braking — it does not compensate for unsafe driving behaviors or reduce the need for safe following distances.

Correct: Check your mirrors before you change lanes, after you signal, and after you begin the lane change — all three checks are needed to ensure the path is clear.

Correct: New CDL drivers are not exempt from Entry Level Driver Training — federal regulations require all entry-level drivers to complete ELDT before obtaining a CDL.

Correct: Inspect cargo securement within the first 50 miles, then again every 150 miles or 3 hours of driving — regular checks ensure the load remains safely secured.

Correct: Whistle-blower laws protect employees in private, public, and government organizations who report unsafe or illegal activity, not only those in government roles.

Correct: The most critical signal to agree on before backing is the stop signal — both driver and helper must share a clear and immediate way to halt all movement.

Correct: Low clearance warnings are sometimes missing at bridges and overpasses, so you must always verify clearance independently and never assume signage is present.

Correct: Always drive at a speed that allows you to stop within the distance you can see ahead — fog, rain, or darkness may require you to slow down significantly.

Correct: The primary way to maintain safe speed on a long downhill grade is to use the braking effect of the engine — service brakes are a supplement, not the main tool.