Should the Engine Be Turned Off and the Key Removed When Refueling a Car?
1 Answers
When refueling a car, it is necessary to turn off the engine and remove the key for the following reasons: 1. Electrical leakage may occur, which can easily cause a car fire. If the engine is not turned off, the vehicle's engine and some electrical equipment inside the car remain operational. During the refueling process, these electrical devices may experience electrical leakage, leading to a short circuit in the wiring. If sparks are generated, it can easily cause a car fire. 2. The vehicle's exhaust pipe continuously emits exhaust gases, which may produce sparks and cause an accident. When the engine is running, the exhaust pipe continues to emit exhaust gases. Besides the high temperature of the exhaust pipe, sparks may also be generated during exhaust emission. 3. The operation of electrical equipment inside the car generates heat, which can easily ignite the vehicle. The working of electrical equipment produces a significant amount of heat, causing the gasoline in the fuel tank to evaporate more quickly. When the concentration of gasoline vapor near the fuel tank reaches a certain level, any spark generated during the engine's operation can ignite the car, potentially even reaching the fuel nozzle and causing more severe consequences.
