Question

Which alarm-initiating device is activated by a rise in temperature of 12°F to 15°F (7°C to 8°C) in one minute?

A. Infrared wave detector
B. Continuous line detector
C. Photoelectric cell detector
D. Rate-of-rise heat detector

Answer 1

The alarm-initiating device that is activated by a rise in temperature of 12°F to 15°F in one minute is the Rate-of-rise heat detector.

Step-by-step explanation:

The alarm-initiating device that is activated by a rise in temperature of 12°F to 15°F in one minute is the Rate-of-rise heat detector. This detector is designed to detect rapid increases in temperature, such as those caused by a fire. When the temperature rises above the set threshold within a short period of time, the detector triggers an alarm.