You see a yellow sign posted at a highway exit ramp showing a speed number. According to the Texas manual, what does that number indicate?
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A.
The mainline speed limit you must return to
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B.
The maximum legal speed limit on the ramp
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C.
The speed at which the ramp may be traveled safely Correct
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D.
The minimum speed required to use the exit ramp
The answer is "The speed at which the ramp may be traveled safely"
The number on a yellow exit-ramp sign shows the speed at which the ramp may be traveled safely. Choice B is the trap for drivers who read every posted speed number as a legal maximum: the habit works on white regulatory signs and fails on yellow advisory panels.
The traps in the wrong answers
A. The mainline speed limit you must return to
The number applies to the ramp itself, not to the mainline speed you left behind. This answer reads an exit-ramp advisory as a reminder about post-ramp speed rather than ramp travel speed.
B. The maximum legal speed limit on the ramp
Enforceable maximum speeds are set by white regulatory signs, not yellow ramp advisories. This answer reads every posted speed number as a legal limit, ignoring the color-based split between advisory and regulatory.
D. The minimum speed required to use the exit ramp
The ramp number is the highest safe travel speed, not a minimum required speed. This answer flips the meaning of the number, borrowing the concept of minimum-speed signs from limited-access highways.
This question tests your knowledge of Warning Signs in Texas. Source: Texas Driver Manual, "Regulatory and Warning Signs," p.30..
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