Driver's License Test Prep
California Practice Warning Signs

You are approaching a highway work zone. What does the manual say alerts you to workers, slow-moving equipment, and closed lanes ahead?

  1. A.
    Warning signs and message boards Correct
  2. B.
    Green guide signs with mile distances
  3. C.
    Blue service signs for gas and food
The Why

The answer is "Warning signs and message boards"

The manual specifies warning signs and message boards as the alerts in a highway work zone for workers, slow equipment, and closed lanes. The trap is choice B; green guide signs are the loudest signs on most highways, and a driver who lumps all highway signs into one category picks green because that is the color they see most, missing that green signs mark destinations rather than hazards.

Why the others miss

The traps in the wrong answers

B. Green guide signs with mile distances

Confuses warning signs with the green guide signs used to mark destinations and mile counts. This answer treats every prominent highway sign as generic information, when guide signs mark places rather than hazards.

C. Blue service signs for gas and food

Confuses warning signs with the blue service signs used for gas, food, and lodging exits. This answer assumes any prominent sign near a work zone is a warning, when blue signs point to service exits instead.

The Rule

This question tests your knowledge of Warning Signs in California. Source: California Driver Manual, "Road Workers and Work Zones," p.49..

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