Road Signs

Study questions with answers

12 sample Road Signs questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.

1. 1. A reflective orange and red triangle mounted on the back of a vehicle means the vehicle:

   Correct answer: Is moving slower than 25 mph

   The slow-moving vehicle emblem identifies equipment or animal-drawn vehicles that travel under 25 mph, so approach with care.

   Source: South Carolina Driver's Manual — Slow-Moving Vehicles

2. 2. You see a diamond-shaped sign with an orange background and black symbols. This indicates:

   Correct answer: A road work area is coming up

   Orange signs mark construction, maintenance, or emergency operations, warning that a work zone lies ahead.

   Source: South Carolina Driver's Manual — Traffic Signs, Work Zone Signs

3. 3. Regulatory signs that state laws you must obey are generally what color?

   Correct answer: White

   Regulatory signs are usually white with black, red, or green markings and set out rules such as speed, turns, and lane use.

   Source: South Carolina Driver's Manual — Traffic Signs, Regulatory Signs

4. 4. Which shape most commonly identifies a warning sign along the roadway?

   Correct answer: A four-sided diamond

   The diamond shape is standard for warning signs that alert you to hazards or changing conditions ahead.

   Source: South Carolina Driver's Manual — Warning Signs

5. 5. A round yellow sign displaying a large X with the letters RR warns that:

   Correct answer: A highway-railroad grade crossing is ahead

   This advance railroad sign tells you to slow, look, and listen for a train and be ready to stop before the crossing.

   Source: South Carolina Driver's Manual — Railroad Crossing Warning Signs

6. 6. A regulatory sign showing a symbol inside a red circle with a red slash across it means:

   Correct answer: The pictured action is not permitted

   The red circle-and-slash prohibits the action pictured, such as no left turn, no U-turn, or no right turn.

   Source: South Carolina Driver's Manual — Regulatory Signs

7. 7. A black-and-white speed limit sign posts a number that represents:

   Correct answer: The maximum legal speed when conditions are good

   The posted figure is the highest legal speed under ideal driving conditions; you must go slower when conditions worsen.

   Source: South Carolina Driver's Manual — Speed Limit Signs

8. 8. A downward-pointing triangle that is red and white tells you to:

   Correct answer: Slow down and give the right-of-way before entering

   A yield sign means reduce speed and let traffic that already has the right-of-way pass before you enter.

   Source: South Carolina Driver's Manual — Traffic Signs, Yield Sign

9. 9. Most warning signs that alert you to a hazard ahead are which shape and color?

   Correct answer: A yellow diamond bearing black markings

   Warning signs are typically diamond-shaped and yellow with black symbols or words, cautioning you about conditions ahead.

   Source: South Carolina Driver's Manual — Traffic Signs, Warning Signs

10. 10. A sign showing a single arrow that reads ONE WAY tells you that:

    Correct answer: Traffic flows only the way the arrow points

    Traffic on that street moves only in the arrow's direction, and you must never travel against it.

    Source: South Carolina Driver's Manual — Regulatory Signs, One-Way Street

11. 11. Fluorescent yellow-green signs are most often used to warn drivers about:

    Correct answer: School and pedestrian crossing areas

    This bright color highlights school zones, school crossings, and pedestrian crossings so drivers notice them early.

    Source: South Carolina Driver's Manual — Warning Signs

12. 12. A diamond-shaped sign that pictures two arrows separating around a median warns that:

    Correct answer: A divided highway is about to begin

    This warning tells you a divided highway is starting ahead, so keep to the right of the median that is coming up.

    Source: South Carolina Driver's Manual — Warning Signs