Ch. 7 · Expressway

When driving on an expressway, you need to reduce tire air pressure slightly.

[True / False · Medium]

Answer: ✕ False

Explanation

The Rules of the Road states under "f. Is the tire air pressure appropriate?" with a note in parentheses: "When driving on an expressway, increase the air pressure slightly." The correct inspection method is to increase it slightly, not reduce it.

Driving school curriculumStage 2 – Topic 16: Driving on expressways

Hikari
Hikari
Lower pressure means a smoother ride at high speed, doesn't it?
Yui
Yui
Actually, it's the opposite—you need to increase tire pressure slightly for expressway driving, so this statement is false.
Hikari
Hikari
Wait, higher? Why?
Yui
Yui
Higher speeds heat up your tires, so a little extra pressure keeps them stable and safe.

Source: Ch. 7 Expressway · Section (第１節 高速道路に入る前の心得) · カ タイヤの空気圧が適当であるか（高速道路を走行するときは、空気圧をやや高めにする。）

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Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.