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Title: A frangible bulb heat detector is activated when: Post by: huhs on Feb 9, 2018 A frangible bulb heat detector is activated when:
A. a beam of light is reflected onto a photoelectric cell to complete a circuit. B. ionized molecules make air less conductive, causing a decrease in current. C. a chemical pellet melts, releasing a pressurized plunger to complete a circuit. D. a small glass vial breaks when heated, allowing electrical contacts to complete a circuit. Title: A frangible bulb heat detector is activated when: Post by: isa on Feb 9, 2018 D
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