Which of the following is considered a poor fire prevention practice?

Using low flash solvents is considered a poor fire prevention practice because low flash point materials are more susceptible to ignition at lower temperatures, increasing the risk of fire. When these solvents are used, proper precautions must be taken to ensure that they are stored and used safely, as they can easily ignite in the presence of a heat source or open flame.

In contrast, keeping exits clear is essential for ensuring a safe evacuation route during emergencies, regularly testing smoke alarms helps ensure they function correctly and can alert individuals to fire danger, and storing flammable materials in proper containers reduces the risk of spillage or accidental ignition. Therefore, using materials with a low flash point without careful management and safety measures can significantly increase fire hazards in a given environment.