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RCDD-001 · Question #251
RCDD-001 Question #251: Real Exam Question with Answer & Explanation
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Question
You are designing an audible alarm notification system for an office environment with an ambient noise level of 55 dBA. What dBA level should the horn be set at?
Options
- A40 dBA
- B50 dBA
- C55 dBA
- D65 dBA
- E70 dBA
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