Ch. 7 · Expressway

Checking whether the radiator cap is securely fastened is not included in the inspection items before driving on an expressway.

[True / False · Hard]

Answer: ✕ False

Explanation

The Rules of the Road states under "(1) Vehicle Inspection" that "c. Is the radiator cap securely fastened?" and lists this as an item that must be especially inspected before driving on an expressway. Therefore, it is included in the inspection items.

Driving school curriculumStage 2 – Topic 16: Driving on expressways

Hikari
Hikari
The radiator cap seems like such a minor thing—I doubt it's on the expressway checklist.
Yui
Yui
That's false! The Rules of the Road actually lists checking if the radiator cap is securely fastened as a must-do before expressway driving.
Hikari
Hikari
Really? Why does it matter so much for highways specifically?
Yui
Yui
High speeds put extra stress on your engine. A loose cap can lead to overheating or coolant loss—definitely something you want to catch early!

Source: Ch. 7 Expressway · Section (第１節 高速道路に入る前の心得) · （１）車を点検すること ウ ラジエータキャップが確実に締まつているか。

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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.