Which two elements are the principal ingredients of a fire prevention plan?

The principal ingredients of a fire prevention plan are primarily focused on preventative measures to reduce fire hazards and to maintain safe working conditions. Preventative maintenance ensures that equipment and systems critical for preventing fires are kept in good working order and are regularly inspected and serviced. Housekeeping involves keeping work areas clean and free of flammable substances that could lead to a fire.

These two elements work together to minimize potential ignition sources and combustible materials in the workplace. This proactive approach is essential in creating a safe environment, diminishing the risk of fire incidents before they happen, rather than reacting to fires after they have already occurred.

The other choices focus on important aspects of safety but do not specifically embody the core components aimed explicitly at preventing fires. For example, training is vital for awareness, but without the consistent focus on maintenance and cleaning, fire risks may still exist. Similarly, communication and emergency response are crucial during a fire incident but do not help in preventing the occurrence of a fire in the first place.