These types of detectors are the fastest to respond to fires although they are prone to false activations.

These types of detectors are the fastest to respond to fires although they are prone to false activations.

• A. Flame/Light Detectors
• B. Heat Detectors
• C. Ionization Detectors
• D. Photoelectric Detectors

Answer: (A)

Flame/Light detectors respond to the light and radiation directly emitted by a flame, so they pick up ignition essentially the moment flames appear. That makes them the fastest type of fire detector because they don’t wait for smoke to billow or heat to rise; they see the flame itself. The trade-off is a higher chance of false activations: bright ambient light, reflections, sunlight, welding arcs, or even other non-fire flames can trigger them. So they are extremely fast, but less selective in certain environments.

Flame/Light detectors respond to the light and radiation directly emitted by a flame, so they pick up ignition essentially the moment flames appear. That makes them the fastest type of fire detector because they don’t wait for smoke to billow or heat to rise; they see the flame itself. The trade-off is a higher chance of false activations: bright ambient light, reflections, sunlight, welding arcs, or even other non-fire flames can trigger them. So they are extremely fast, but less selective in certain environments.