United States Permit Test Coach
Work zonesQuestion 177 of 223
Orange and white striped drum

What is the main job of the devices in this picture?

  1. To mark a place to park
  2. To show the speed limit
  3. To guide drivers through or around the work area
  4. To tell drivers to stop
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Correct answer: To guide drivers through or around the work area

Channelizing devices such as drums warn drivers of work and guide them. They help traffic move smoothly from one lane to another.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), 11th Edition with Revision 1 (FHWA, December 2025), Section 6K.01 Channelizing Devices – General, page 856

Practice work zones

Questions last reviewed: 18 October 2026