Ch. 5 · 第６節 追越しなど
When being overtaken, you must not increase your speed until the overtaking is complete.
[True / False · Easy]
Answer: True
Explanation
The Rules of the Road, Section "2 Method of Overtaking (4)", clearly states: "When being overtaken, you must not increase your speed until the overtaking is complete." Therefore, this statement is correct.
Source: Ch. 5 · Section (第６節 追越しなど) · ２ 追越しの方法（４）
See the glossary for definitions of key terms.