California DMV Permit Test · Class C Knowledge Test
California DMV Permit Test Signs, Signals, and Pavement Markings Summary
- Importance
- ★★★★★ (5 / 5)
- Weight
- About 7 of 36 Class C Knowledge Test questions (20%)
What traffic lights, flashing signals, sign shapes and colors, and lane lines tell you to do.
Signs, Signals, and Pavement Markings: must-know points
- A flashing red light means stop, then go when it is safe. A flashing yellow light means slow down and be careful.
- If a traffic signal is not working, treat the intersection as an all-way stop.
- Double solid yellow lines mean no passing. A broken yellow line means you may pass when it is safe.
Signs, Signals, and Pavement Markings: 10 sample questions
Question 1. You come to an intersection where the traffic light is flashing red. What must you do?
- ① Slow down and go through without stopping
- ② Wait until the light turns green
- ③ Come to a complete stop, then go when it is safe
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Answer: ③ Come to a complete stop, then go when it is safe
Key point: Flashing red light = treat it like a stop sign
A flashing red light works the same as a stop sign. Stop completely, look for cross traffic and pedestrians, and go only when it is safe. The light will not turn green, so waiting for green is pointless.
Wrong answers
- Slow down and go through without stopping: Slowing down without stopping is what you do at a flashing yellow light, not a flashing red one.
- Wait until the light turns green: A flashing red light does not change to green. You go after stopping and checking that the way is clear.
Question 2. The traffic light ahead turns solid yellow as you approach. What does this tell you?
- ① You should speed up to get through before it turns red
- ② The light is about to turn red, so stop if you can do so safely
- ③ You may keep going because yellow means the same as green
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Answer: ② The light is about to turn red, so stop if you can do so safely
Key point: Solid yellow = red is coming; stop if it is safe to stop
A solid yellow light warns that the signal is about to turn red. If you can stop safely, stop. If you are already too close to stop safely, carefully continue through the intersection.
Wrong answers
- You should speed up to get through before it turns red: Speeding up to beat the light is dangerous and is exactly what the yellow light is meant to prevent.
- You may keep going because yellow means the same as green: Yellow is a warning that red is coming. It does not give you the same right to go as a green light.
Question 3. You reach an intersection where the traffic signals are completely dark because of a power outage. What should you do?
- ① Give the right of way only to vehicles on the larger road
- ② Drive through slowly, since there is no signal to obey
- ③ Treat the intersection as a four-way stop
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Answer: ③ Treat the intersection as a four-way stop
Key point: Dark (not working) traffic signal = all-way stop
When a traffic signal is not working at all, California law treats the intersection like an all-way stop. Stop completely, then take turns with the other drivers, yielding as you would at a four-way stop.
Wrong answers
- Drive through slowly, since there is no signal to obey: You still must stop. Rolling through without stopping is how serious crashes happen at dark signals.
- Give the right of way only to vehicles on the larger road: The size of the road does not matter here. Every driver stops, and drivers take turns.
Question 4. What do two solid yellow lines down the center of a two-lane road mean?
- ① You may pass if the road ahead looks clear
- ② Passing is not allowed in either direction
- ③ Only vehicles on the left side may pass
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Answer: ② Passing is not allowed in either direction
Key point: Double solid yellow center line = no passing either way
Two solid yellow lines mean no passing for traffic in both directions. You may cross them only for certain turns, such as turning left into or out of a driveway.
Wrong answers
- You may pass if the road ahead looks clear: Passing over double solid yellow lines is not allowed, even if the road looks clear.
- Only vehicles on the left side may pass: Double solid lines apply to both directions. No one may pass over them.
Question 5. What does a flashing yellow traffic light mean?
- ① Stop completely before entering the intersection
- ② Slow down and go through with extra care
- ③ The light is broken, so treat it as a four-way stop
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Answer: ② Slow down and go through with extra care
Key point: Flashing yellow light = slow down and proceed with caution
A flashing yellow light is a warning. You do not have to stop, but you should slow down, look carefully, and be ready to yield.
Wrong answers
- Stop completely before entering the intersection: A complete stop is required at a flashing red light, not a flashing yellow one.
- The light is broken, so treat it as a four-way stop: A flashing yellow light is working as designed. The four-way-stop rule applies when a signal is dark (not working at all).
Question 6. What shape is a STOP sign?
- ① Triangle pointing down
- ② Round
- ③ Eight-sided (octagon)
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Answer: ③ Eight-sided (octagon)
Key point: STOP sign = red eight-sided octagon
A STOP sign is the only sign with eight sides. Its unique shape lets you recognize it even from behind or when it is covered with snow or dirt.
Wrong answers
- Triangle pointing down: A downward-pointing triangle is the shape of a YIELD sign.
- Round: A round sign is used to warn of a railroad crossing ahead.
Question 7. What does a triangle-shaped sign pointing downward, red and white in color, tell you to do?
- ① Always come to a complete stop, even when the road is clear
- ② Slow down and let traffic and pedestrians go first, stopping if needed
- ③ Merge without slowing because you have the right of way
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Answer: ② Slow down and let traffic and pedestrians go first, stopping if needed
Key point: YIELD sign = slow down, give way, stop only if necessary
This is a YIELD sign. Slow down and be ready to stop. Let vehicles, bicyclists, and pedestrians that are already close go first. If the way is clear, you do not have to stop.
Wrong answers
- Always come to a complete stop, even when the road is clear: A complete stop every time is required at a STOP sign, not a YIELD sign.
- Merge without slowing because you have the right of way: A YIELD sign means the other traffic has the right of way, not you.
Question 8. A round yellow sign with a large X and the letters RR means:
- ① The road ahead is closed
- ② A crossroad intersection is ahead
- ③ A railroad crossing is ahead
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Answer: ③ A railroad crossing is ahead
Key point: Round yellow sign with X and RR = railroad crossing ahead
A round yellow sign with an X and "RR" warns that you are approaching a railroad crossing. Slow down, look and listen for trains, and be ready to stop.
Wrong answers
- A crossroad intersection is ahead: A crossroad warning sign is diamond-shaped with a cross symbol, not round.
- The road ahead is closed: A road-closed sign is a rectangular sign with words. The round RR sign only warns about train tracks.
Question 9. The center line on your side of a two-lane road is a broken yellow line. What does this mean?
- ① You must never cross the line
- ② You may pass if it is safe to do so
- ③ The lane is reserved for buses and carpools
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Answer: ② You may pass if it is safe to do so
Key point: Broken yellow line on your side = passing allowed if safe
A broken (dashed) yellow line on your side of the road means you may pass when the way ahead is clear and it is safe. The yellow color tells you traffic on the other side goes the opposite direction.
Wrong answers
- You must never cross the line: "Never cross" describes solid lines. A broken line allows passing when safe.
- The lane is reserved for buses and carpools: Bus and carpool lanes are marked with signs and diamond symbols, not a broken yellow center line.
Question 10. On a road, lines that separate lanes of traffic moving in the SAME direction are what color?
- ① White
- ② Yellow
- ③ Red
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Answer: ① White
Key point: White lines = same direction; yellow lines = opposite directions
White lines separate lanes moving in the same direction. Yellow lines separate traffic moving in opposite directions. Knowing this helps you avoid turning into oncoming traffic.
Wrong answers
- Yellow: Yellow lines separate traffic moving in opposite directions.
- Red: Red is used for curbs (no stopping), not for lane lines.
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