Which of the following is true about the installation drawings for fire alarm systems?

The correct response highlights that installation drawings for fire alarm systems are mandatory. This requirement is essential as these drawings serve as critical blueprints that guide the installation process. They provide detailed information on the layout and design of the fire alarm system, ensuring that it complies with local codes, safety regulations, and the manufacturer's specifications.

Having these drawings is fundamental for several reasons. First, they help ensure that the system is installed correctly, which is crucial for its performance and reliability in an emergency. Secondly, they facilitate inspections and audits by code enforcement officials, ensuring compliance with safety standards. Furthermore, the use of installation drawings helps to communicate the design effectively among the installation team, which can reduce errors and improve overall efficiency.

In short, the mandatory nature of installation drawings reflects their importance in maintaining safety and compliance within the fire alarm system installation process.