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myahwatsonnnnn myahwatsonnnnn
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7 years ago
What is the type of smoke detector that has a T-shaped chamber with a light-emitting diode (LED) that directs a beam of light straight across the top, horizontal bar of the T?
 
  a. Photoelectric light-scattering smoke detectors
  b. Heat detectors
  c. Ionization smoke detectors
  d. Photoelectric light-obscuration smoke detectors
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#1
7 years ago
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