Communicating: Texas CDL practice questions

Part of the General Knowledge test. We have 8 checked questions on this topic. Here are the key rules, and two to try.

Key facts

Part of	the General Knowledge test (80% to pass)	DL-7C p. iv
Handbook section	§2.5 Communicating	DL-7C p. 2-12
Questions in CDL Mile's bank	8	CDL Mile, checked against DL-7C

§ 2.5.2p. 2-12
On a one-way or divided highway, set the warning devices at 10 feet, 100 feet, and 200 feet from your vehicle, toward the traffic that is coming at it.
Communicating Your Presence
§ 2.5.2p. 2-13
If a hill, curve, or other obstruction keeps drivers from seeing your vehicle within 500 feet, move the rear-most triangle back down the road beyond it so it gives warning.
Communicating Your Presence

General Knowledge · Communicating

As you walk back to set out reflective triangles, why should you hold them between yourself and oncoming traffic?

Tap an answer to see the explanation and the handbook page.

General Knowledge · Communicating

You have to stop on the shoulder of a highway. How soon must your emergency warning devices be put out?

Tap an answer to see the explanation and the handbook page.

Texas Commercial Motor Vehicle Drivers Handbook (DL-7C), revised March 2026, Texas Department of Public Safety. Page references are to its printed page numbers. CDL Mile is independent and not affiliated with Texas DPS.

Updated for the March 2026 Texas CDL handbook (DL-7C). Last checked November 4, 2026.

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