If protected hazards have flowing flammable or combustible fluid or gases, the system is required to provide:

If protected hazards have flowing flammable or combustible fluid or gases, the system is required to provide:

• A. Automatic means to shut off power and fuel valves when operating system
• B. Manual means to shut off power
• C. Audible alarm
• D. No requirement

Answer: (A)

When protected hazards involve flowing flammable or combustible fluids or gases, the system must automatically shut off both electrical power and fuel valves. This automatic action quickly removes ignition sources and stops the fuel supply as the system actuates, reducing the risk of further ignition or an explosion. Relying on an audible alarm or on manual shutdown could leave energizing equipment or fuel lines active during a fire, creating delays and additional danger. So automatic power and fuel shutoff is the required safeguard.

When protected hazards involve flowing flammable or combustible fluids or gases, the system must automatically shut off both electrical power and fuel valves. This automatic action quickly removes ignition sources and stops the fuel supply as the system actuates, reducing the risk of further ignition or an explosion. Relying on an audible alarm or on manual shutdown could leave energizing equipment or fuel lines active during a fire, creating delays and additional danger. So automatic power and fuel shutoff is the required safeguard.