# MenkyoQuest — Question ch6_q044

Chapter: Ch. 6 Hazardous Areas
Section: 第５節 緊急時の措置
Type: Multiple choice
Difficulty: hard

## Question
While driving, if the engine speed increases and then fails to decrease due to malfunction, which is the correct action for a four-wheeled vehicle?

## Options
A. Turn off the engine switch immediately
B. Shift the gear to neutral to prevent engine power from being transmitted to the wheels, stop in a safe place, and then turn off the engine switch
C. Shift the gear to low and decelerate using engine braking
D. Turn off the ignition switch to stop the engine

## Correct answer
B. Shift the gear to neutral to prevent engine power from being transmitted to the wheels, stop in a safe place, and then turn off the engine switch

## Explanation
The Rules of the Road (3) states: "In the case of a four-wheeled vehicle, shift the gear to neutral to prevent engine power from being transmitted to the wheels, proceed to a safe place such as the shoulder of the road, stop there, and then turn off the engine switch." The correct procedure is to stop in a safe place before turning off the switch.

## Driving school curriculum
Stage 2 – Topic 13: Responding to traffic accidents

## Source passage (Rules of the Road)
(3) 四輪車の場合はギアをニュートラルにして車輪にエンジンの力を掛けないようにしながら路肩など安全な場所に行き、そこで停止した後にエンジンスイッチを切ること

## Tags
エンジン故障, 回転数, 四輪車, ニュートラル, 緊急時

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Source basis: National Police Agency's official Rules of the Road manual (Public Domain under Article 13 §2 of Japan's Copyright Act).
Copyright on AI-drafted explanations belongs to the MenkyoQuest team.