General Knowledge · Seeing Hazards

Approaching an alley entrance, a driver can see only the front bumper of a car waiting to pull out, not its driver. What should this tell the CDL driver?

1.If the other driver cannot be seen, that driver likely cannot see the approaching vehicle either, so it may pull out without warningCorrect answer

2.The car is legally required under state traffic law to remain fully stopped until the commercial vehicle has completely passed the alley

3.Because only the bumper is visible, the car must be too far back from the roadway itself to actually be a factor

4.The car's driver has an unobstructed view down the entire length of the alley and will yield to traffic automatically

Explanation

Seeing only part of a vehicle at a blind alley or intersection is a hazard clue precisely because it works both ways: if the approaching driver cannot see the waiting driver, the waiting driver most likely cannot see the approaching commercial vehicle either, so it could pull out unexpectedly and the CDL driver should be prepared to stop. Recognizing this kind of clue from limited road-user visibility is part of the required knowledge CDL applicants must have under 49 CFR 383.111(a)(13)(i), but that paragraph only names "road characteristics" as a required knowledge topic; it does not itself state this specific reasoning, which is standard driver-training content rather than a codified federal rule. The other options fail for a shared reason: each assumes a legal guarantee or a visibility fact that does not follow from the situation, when the correct response is caution based on uncertainty, not an assumption of safety.

Source: 49 CFR 383.111(a)(13)(i)

Drill Seeing Hazards questions

Approaching an alley entrance, a driver can see only the front bumper of a car waiting to pull out, not its driver. What should this tell the CDL driver?

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