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What are 3 types of heat detectors in a fire alarm system? Option 1: Ionization, Photoelectric, and Carbon Monoxide detectors. Option 2: Rate-of-Rise, Fixed Temperature, and Thermocouple detectors. Option 3: Smoke, Heat, and Gas detectors. Option 4: Infrared, Ultraviolet, and Microwave detectors.

Answer :

Final answer:

Option 2 is correct.

The three types of heat detectors in a fire alarm system are Rate-of-Rise, Fixed Temperature, and Thermocouple detectors.

Explanation:

In a fire alarm system, the three types of heat detectors are:

Rate-of-Rise detectors: These detectors sense a rapid increase in temperature.

Fixed Temperature detectors: These detectors trigger an alarm when the temperature reaches a specific set point. Thermocouple detectors: These detectors use a pair of dissimilar metals that generate a voltage signal when heated, indicating a rise in temperature.

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