EC-Council
512-50 · Question #364
Which of the following best describes the sensors designed to project and detect a light beam across an area?
The correct answer is D. Photo electric. See the full explanation below for the reasoning.
Question
Which of the following best describes the sensors designed to project and detect a light beam across an area?
Options
- ASmoke
- BThermal
- CAir-aspirating
- DPhoto electric
How the community answered
(24 responses)- A13% (3)
- B4% (1)
- C4% (1)
- D79% (19)
Community Discussion
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