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DMV Permit · Warning Signs

A round (circular) yellow sign with an 'X' and the letters 'RR' warns of:

Reviewed by Jordan Morley, Editorial Lead at 247SimpleTests. Written by the 247SimpleTests Editorial Team from the official source material cited on every question.

Correct answer

A railroad crossing ahead

  1. A A rest area
  2. B A hospital ahead
  3. C A roundabout
  4. D A railroad crossing ahead

Why this is the answer

A round yellow sign marked with a large 'X' and the letters 'RR' is the advance warning for a railroad crossing ahead. It tells drivers to slow down, look and listen for a train, and be prepared to stop. The round shape is used specifically for this railroad advance-warning sign, making it distinctive. At the crossing itself, drivers may see crossbuck signs, flashing lights, and gates. Never stop on the tracks, and never try to beat a train. Recognizing the round railroad-crossing warning sign and responding by preparing to stop is important warning-sign knowledge tested on the permit exam.
Source: MUTCD — Railroad Crossing Warning

Practice more questions

This question is from our DMV Permit Practice Tests practice test. Take the full practice test to test your knowledge across all Warning Signs and other topics.

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About this topic: Warning Signs

Yellow diamond signs warn of hazards: curves, intersections, animals, slippery surfaces, school zones. Slow down and look further ahead when you see them. This is one of 24 Road Signs questions on warning signs, each with a full explanation on a single study page.

New to this exam? Our DMV Permit exam guide explains the format, scoring, and how to prepare.

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Recommended study materials

Study guide

DMV Permit Test Study Guide (Learner Editions)

State-by-state driver's license and learner's permit prep, road signs, and rules of the road in plain language.

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Road Rules & Signs Workbook (Exambusters)

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Prepare for the Learner's Permit Test (Sterling)

Practice questions and explanations for teen and adult first-time driver license test takers.

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