Question 3214 Deck General

70% to pass

If H2S exposure is anticipated, fixed monitoring devices aboard a MODU should have a low level concentration alarm to alert personnel. at what concentration level will the alarm activate?

A 10 PPM
B 20 PPM
C 30 PPM
D 40 PPM
AI Explanation

The correct answer is A) 10 PPM. According to the Occupational Safety and Health Administration (OSHA) regulations, the permissible exposure limit (PEL) for hydrogen sulfide (H2S) is 10 parts per million (PPM) as an 8-hour time-weighted average. The fixed monitoring devices aboard a Mobile Offshore Drilling Unit (MODU) should have a low-level concentration alarm set to activate at 10 PPM to alert personnel of potential H2S exposure and allow them to take appropriate safety measures. The other options (20 PPM, 30 PPM, and 40 PPM) are incorrect because they exceed the OSHA PEL for H2S exposure, which is the regulatory requirement for the alarm activation level.

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