What should be indicated regarding fuels used in a site plan?

The correct choice emphasizes the importance of clearly indicating the types and estimated consumption of fuels in a site plan. In the context of flame effects, this information is vital for ensuring safety and proper planning.

Specifically, knowing the types of fuels being used helps in assessing their characteristics, flammability, and any specific handling requirements. Additionally, estimating fuel consumption allows for adequate supply management and the implementation of safety measures tailored to the specific effects planned. This ensures that there is sufficient fuel available for the entire duration of the event, reducing the risk of unexpected interruptions during a performance.

Other considerations, such as the costs associated with fuels, training for handlers, or environmental impacts, are important but are secondary to the critical need for clear communication about what fuels will be used and in what quantities. These details create a foundation for effective risk management and compliance with safety regulations outlined in standards like NFPA 160.