Correct answer: D – Jackknife
Water can make brakes weak, uneven, or prone to grabbing. Possible results include reduced braking power, wheel lockup, pulling to one side, and a jackknife when towing a trailer. After crossing unavoidable standing water, maintain light brake pressure briefly to help dry and test the brakes.
Source: Vermont Commercial Driver’s License Manual — § 2.13.2, “Driving—Wet Brakes”
Correct answer: A – Stop and proceed under the rules that apply at a stop sign
In Vermont, a driver facing a flashing red signal must stop before the nearest crosswalk, marked limit line, or intersection, as applicable. After stopping, the driver may proceed only under the rules governing movement from a stop sign. A flashing yellow signal, by contrast, permits cautious movement without a required stop.
Source: 23 V.S.A. § 1024 – Flashing signals
Correct answer: A – Traffic and roadway conditions
Scan for traffic entering the highway, moving into your lane, turning, or slowing. Also watch for roadway hazards such as curves, grades, work zones, drop-offs, objects, and difficult ramps. Looking far enough ahead gives you more time to adjust speed or position safely.
Source: Vermont Commercial Driver’s License Manual — § 2.4.1, “Seeing Ahead”; § 2.8.2, “Hazardous Roads”
Correct answer: B – 2
Federal cargo-securement rules require at least two tiedowns for an unblocked article longer than 5 feet but no longer than 10 feet, regardless of weight. Different minimums apply to shorter articles based on weight and to articles longer than 10 feet. Blocking or immobilizing the article against forward movement can also affect the applicable calculation.
Source: 49 CFR § 393.110(b)(2)(ii) – Additional requirements for determining the minimum number of tiedowns
Correct answer: A – The road can become unexpectedly slippery when wet
The Slippery When Wet sign warns that wet conditions may produce unexpected loss of traction. It does not prohibit travel during rain. Commercial drivers should reduce speed on wet pavement because stopping takes longer and turning without skidding becomes more difficult.
Source: Manual on Uniform Traffic Control Devices, 11th ed., Rev. 1 — § 2C.30, “Surface Condition Signs”, Vermont Commercial Driver’s License Manual — § 2.6.2, “Matching Speed to the Road Surface”
Correct answer: A – Judgment and self-control
The first area of the brain affected by alcohol controls judgment and self-control. This is especially dangerous because impaired judgment can prevent a person from recognizing how affected they have become. As blood alcohol concentration continues to rise, vision, coordination, and muscle control also deteriorate.
Source: Vermont Commercial Driver’s License Manual — § 2.22.1, “Alcohol—Alcohol and the Brain”
