Question 3214Deck General70% 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?
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.
Related Questions
#3212 Requirements for H2S preparation and equipment usage aboard MODU's in U.S. offshore waters are administered by the which of the following organizations? #3213 When H2S is burned (flared) on a MODU, what can you expect to occur? #3215 For H2S detection, sensitized tapes indicate H2S presence by means of discoloration of an exposed spot on the tape. The shade of the color on the spot depends upon the concentration of H2S and which of the following factors? #3216 What additional precautions should be taken when making temporary repairs to a MODU that is operating when hydrogen sulfide is present? #3217 What is the minimum concentration of H2S that will cause death with short-term exposure?