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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

The 75 dBA minimum sound level required for sleeping rooms is measured:

The 75 dBA requirement is measured at the pillow level. Sound is significantly attenuated by doors (approx 10-30dB loss). To achieve 75 dBA at the pillow, the h

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Question: The 75 dBA minimum sound level required for sleeping rooms is measured:

Answer options:

  • At the door entrance ✅ At the pillow level
  • Inside the ensuite bathroom
  • Under the bed

Correct answer: At the pillow level

Explanation: The 75 dBA requirement is measured at the pillow level. Sound is significantly attenuated by doors (approx 10-30dB loss). To achieve 75 dBA at the pillow, the hallway signal often must be 90+ dBA.

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