According to the glossary, at what speed do low-beam headlights stop giving you enough distance to stop within your headlight range?
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A.
30 mph is the cap because low beams reach less
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B.
65 mph, which is the high beam cap
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C.
There is no set cap for either beam
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D.
45 mph is the manual's cap for low beams Correct
The answer is "45 mph is the manual's cap for low beams"
The over-driving-headlights entry sets 45 mph as the cap for low beams and 65 mph for high beams before your stopping distance runs past what the beams light up. Choice B swaps the two caps, which learners fall for because higher beams and higher speeds sound like they should share a number.
The traps in the wrong answers
A. 30 mph is the cap because low beams reach less
The glossary sets the low-beam cap higher than 30 mph. This answer pulls down the actual cap to match the urban speed learners associate with low-beam driving.
B. 65 mph, which is the high beam cap
That figure is the high-beam cap, not the low-beam one. This answer swaps the two beam caps printed in the same sentence, the easiest slip when reading a two-number rule too quickly.
C. There is no set cap for either beam
The glossary prints specific caps for both beams. This answer treats over-driving headlights as a judgment call, missing that the glossary gives fixed numbers.
This question tests your knowledge of Defensive Driving in Texas. Source: Texas Driver Manual, "Appendix A: Glossary of Terms," p.74..
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