Which of the following is true about the installation of sprinklers?

The assertion that proper placement is crucial for effective fire suppression is foundational to the role of sprinklers in fire protection systems. Ensuring that sprinklers are installed in the correct locations allows them to effectively control and extinguish fires by maximizing coverage and minimizing the chance of flames spreading. Proper placement considers factors such as the layout of the building, the type of hazards present, and the specific fire protection strategy being implemented.

When sprinklers are positioned correctly, this allows them to operate as designed during a fire event, ensuring optimal water distribution and efficiency in suppressing the fire. This understanding of positioning is rooted in fire protection engineering principles and is reflected in various codes and standards that guide the installation of sprinkler systems.

In contrast, the other options either misrepresent the standards required for sprinkler installation or address specifics that are not universally applicable. For instance, ignoring local codes is not permissible, as compliance with them is necessary to meet safety and legal requirements. Similarly, while different types of sprinklers might have specific installation criteria, the idea that all types must be installed at the same height or that only sidewall sprinklers require special considerations overlooks the diversity of sprinkler types and their applications in various environments.