TLSAE Road Signs and Traffic Signals 1 — Questions and Answers
Question 1: What shape is used exclusively for stop signs in the United States?
- Circle
- Triangle
- Octagon (Correct answer)
- Diamond
Correct answer: Octagon
The octagon (8-sided shape) is used exclusively for stop signs in the US, making them instantly recognizable even when obscured by snow or damage.
Question 2: A yellow diamond-shaped sign with a black 'X' and 'RR' indicates:
- A rest area ahead
- A railroad crossing ahead (Correct answer)
- Road reconstruction zone
- A rural route marker
Correct answer: A railroad crossing ahead
A yellow diamond sign with 'RR' and a black X warns drivers that a railroad crossing is ahead.
Question 3: What does a flashing RED traffic light signal require a driver to do?
- Slow down and proceed with caution
- Stop completely, yield to traffic and pedestrians, then proceed when safe (Correct answer)
- Treat it as a yield sign
- Stop and wait for the light to change to green
Correct answer: Stop completely, yield to traffic and pedestrians, then proceed when safe
A flashing red light must be treated like a stop sign — come to a complete stop, yield, then proceed when it is safe.
Question 4: What color and shape are regulatory signs (signs that state traffic laws)?
- Yellow diamonds
- White rectangles or squares (and octagons for stop signs) (Correct answer)
- Green rectangles
- Orange diamonds
Correct answer: White rectangles or squares (and octagons for stop signs)
Regulatory signs are white with black or red text, typically in rectangular shapes, and include speed limit signs, no-turn signs, and stop signs.
Question 5: A white sign with the message 'DO NOT PASS' means:
- Passing is discouraged but permitted if safe
- Passing is absolutely prohibited at this location (Correct answer)
- Passing large trucks is prohibited
- The passing lane ends ahead
Correct answer: Passing is absolutely prohibited at this location
A 'Do Not Pass' sign is a regulatory sign meaning passing is legally prohibited at that location.
Question 6: What does an orange traffic sign typically indicate?
- School zone
- Construction or work zone ahead (Correct answer)
- Recreational area nearby
- Railroad crossing warning
Correct answer: Construction or work zone ahead
Orange signs are used exclusively in construction and work zones to warn drivers of temporary conditions, detours, and workers present.