DGT Traffic Laws & Regulations 3 — Questions and Answers
Question 1: What must a driver do when an emergency vehicle with lights and siren activated is approaching from behind?
- Speed up to clear the lane quickly
- Pull to the right edge of the road and stop (Correct answer)
- Continue at the same speed
- Move to the left lane
Correct answer: Pull to the right edge of the road and stop
Drivers must pull to the right and stop to yield the roadway to approaching emergency vehicles.
Question 2: When is it legal to make a U-turn at an intersection?
- Whenever traffic allows
- Only where a sign permits it or where there is no sign prohibiting it and it is safe (Correct answer)
- Never at intersections
- Only when a traffic officer directs you
Correct answer: Only where a sign permits it or where there is no sign prohibiting it and it is safe
U-turns are legal where permitted by signage and safe to execute, unless specifically prohibited.
Question 3: What does a flashing yellow traffic light mean?
- Stop and wait for green
- Proceed with caution (Correct answer)
- The light is about to turn red
- Yield to all cross traffic before proceeding
Correct answer: Proceed with caution
A flashing yellow light means slow down and proceed with caution; it does not require a full stop.
Question 4: What is the legal blood alcohol content (BAC) limit for non-commercial adult drivers in most U.S. states?
- 0.05%
- 0.08% (Correct answer)
- 0.10%
- 0.15%
Correct answer: 0.08%
A BAC of 0.08% or higher is legally impaired for non-commercial adult drivers in most states.
Question 5: When must headlights be used other than at night?
- Only during rain
- Whenever visibility is less than 1,000 feet due to weather conditions
- During fog, rain, snow, or smoke when visibility is reduced to 500 feet or less (Correct answer)
- Only when high beams are required
Correct answer: During fog, rain, snow, or smoke when visibility is reduced to 500 feet or less
Headlights are required whenever poor weather conditions reduce visibility to 500 feet or less.
Question 6: A driver must yield to pedestrians in a crosswalk:
- Only when pedestrians have a walk signal
- At all times, whether marked or unmarked (Correct answer)
- Only at marked crosswalks with painted lines
- Only when a pedestrian is already halfway across
Correct answer: At all times, whether marked or unmarked
Drivers must yield to pedestrians at all crosswalks, both marked and unmarked, at intersections.
Question 7: On a multi-lane highway, which lane should drivers generally use for through travel?
- The far left lane
- The far right lane
- Any lane except the far left, which is reserved for passing (Correct answer)
- The center lane only
Correct answer: Any lane except the far left, which is reserved for passing
The far left lane is intended for passing only; through traffic should use right or center lanes.
DGT Traffic Laws & Regulations 3
What must a driver do when an emergency vehicle with lights and siren activated is approaching from behind?