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Know These Two Road Signs for Your DMV Test

Road signs - Slippery When Wet - Winding Road

Two Road Signs That are Easy to Mix Up

Can you tell them apart?

The symbols on these two road signs sometimes create confusion. New drivers often mix up the “Slippery When Wet” sign with the “Winding Road” sign.

For your driver exam, it is important that you can tell them apart and know what both signs mean.

Road sign quiz illustration at

Slippery When Wet

The Slippery When Wet sign is used to warn of unexpected slippery conditions. This usually means that a part of the roadway becomes more slippery in wet or cold weather.

Expect to see the sign close to bridges and overpasses, which freeze first in cold and wet weather. Bridges and overpasses also dry out last. In wet or cold weather, you must slow down and drive with caution.

Signs may emphasize the risk by a supplemental plaque with a legend such as ice or when wet.

Plaques with the words “Steel Deck” or “Excess Oil” are also used to indicate other reasons for slippery conditions.

Such signs can be orange (work zone) or pink (incidents) to indicate a temporary condition.

  Read more: What Does the “Slippery When Wet” Sign Mean?

Road signs - Reverse Turn and Reverse Curve

Reverse Turn – Reverse Curve Signs

When there are two turns or two curves ahead, you will typically see the yellow Reveres Turn or Reverse Curve sign. These signs tell you to slow down and be prepared to turn first to the right or left, and then in the opposite direction.

When you approach any of the signs above, you turn left and then right.

Road sign quiz illustration at

Winding Road

When there are more than two turns or two curves, you will see the Winding Road sign. Turns or curves on this roadway are normally separated by less than 600 feet.

You may find an advisory speed plaque below the sign. For safe driving, you should always slow down to the recommended speed. In adverse weather conditions, you should slow down even more.

There may also be a distance plaque, telling you how many miles of winding road you should expect ahead.

You may also see repeated Winding Road signs along such a roadway.

Will These Signs Be on Your DMV Written Test?

Yes, since they cause confusion for many new drivers, there is a great chance you will see one of these signs (or both) on your test.

Check Your Knowledge – Signs Quiz



Well done!

Check signs in your manual and make sure you know all of them!

#1. This sign means:

#2. Where are you most likely to see this sign?

#3. What should you expect ahead?

#4. When you approach this sign, you should:

See your result

Three Other Signs That Are Easy to Mix Up

Three other road signs that are quite easy to mix up are Divided Highway Begins, Divided Highway Ends, and Two-Way Traffic. Learn what they mean and how to tell them apart here: Mixed Up Signs.

Road signs -

More Interactive Practice Tests

If you want help to study for your DMV test, there are 50 practice tests available for your state.


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  1. I am glade to have read all of those comments that was written….I will be going. Soon to take my test and I am trying by al means to be positive and put more confident in myself cause self confident is one of the greatest weapon that can fright all fear that is with in you…All I can say is study hard do not memories..and you will make it!

  2. Mary Roberts May 27, 2015

    I am 75 and haven’t taken the written test in 40years,I have been taking the practice test over and over and I can’t seem to pass some of the question s I have never heard of them, I have never been in an accident. I am concedered to be a very good driver. I am at my Witt’s end, I really need my license, and I have a disability with reading directions. What can I do to pass the test?

    • No doubt a lot of things have changed in 40 years. I hope that you have familiarized yourself with your State’s Driver’s Manual. All questions on the practice tests and the real DMV test are from this manual. One main purpose of the test is in fact to make sure you have read the manual.

      If you have problems with computerized tests or reading instructions, contact your local DMV and ask for an oral exam.

      On the practice tests, don’t waste time on driving points, penalties, permit restrictions, and other details. Questions like that are rarely seen on a renewal test.

  3. Sam Longmore February 4, 2015

    I have to take the book test over. I think this was very helpful

  4. I’m taking mine over and I am 57…..
    If you know of any other help out there
    Please let me know

  5. I knew these 2 answers but have missed alot of others.I want to go Jan, and get my drivers licenses.I need to study alot more and I will before I go,cause I hear of many going and failing them several time.I don’t want to be one of them.These test are very helpful cause I 55 and haven’t had license since 91 and I hope I will be able to pass it on the 1st. time.

    • March 17, 2018

      I have never had a ticket and I am an excellent driver! Please help!

  6. Pascal Dakouo November 17, 2014

    Very instructif.

    • Toby Sikora March 18, 2018

      I am trying so hard to pass this test! Do you have any advice! I am 75 years old!

      • Relax. Don’t read too much into questions. If you have been driving for many years, the real test is mostly common sense.

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