Driver's License Test Prep
Texas Practice Speed Limits

According to the Texas manual, some limited-access highways in Texas are posted up to what maximum speed?

  1. A.
    70 mph on all state highways.
  2. B.
    80 mph on all federal highways.
  3. C.
    85 mph on some limited-access routes. Correct
  4. D.
    65 mph on all interstates.
The Why

The answer is "85 mph on some limited-access routes."

The manual states plainly that many Texas limited-access highways carry speed limits of 75 up to 85 mph. Choice A tempts drivers who saw the state-highway table row showing 70 mph as a general maximum outside urban districts and read that as the highest number Texas ever posts.

Why the others miss

The traps in the wrong answers

A. 70 mph on all state highways.

Confuses the general 70 mph maximum for numbered highways with the higher limited-access cap. Read the 70 mph row in the Speed Limits table as the highest posted speed anywhere in Texas.

B. 80 mph on all federal highways.

Splits the difference at a common turnpike-era figure the Texas manual does not print. Guessed 80 as a round number between the state-highway 70 and the interstate limit some states allow.

D. 65 mph on all interstates.

Underestimates the ceiling using an older interstate cap common in other regions. Applied a memory of the 65 mph interstate cap from decades past instead of the current Texas figure.

The Rule

This question tests your knowledge of Speed Limits in Texas. Source: Texas Driver Manual, "Chapter 8: Speed and Speed Limits - Speed Limits," p.46..

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