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Toxic Chemical release at DuPont in La Porte, Texas


Quiz Questions

1. During the release, methyl mercaptan detectors inside and outside of the manufacturing building alarmed on the control panel. DuPont La Porte had designed the outside detectors to alarm on the control panel when they sensed a methyl mercaptan concentration of _________________?
25 ppm or greater
35 ppm or greater
2. According to figure 13,the emergency isolation valve was not activated until how many hours after the release began.
Toxic Chemical release at DuPont in La Porte, Texas 1
Five hours
Seven hours
3. The full form of HAZWOPER
Hazardous Waste Operations and Emergency Response
Harmful Waste Operations and Emergency Response
4.

The ACC Board’s Responsible Care Committee proposed the task force, and it was endorsed by the ACC in November 2015 to drive continuous improvement by industry in process safety and occupational safety. In June 2016, the ACC Board approved the task force’s recommendations, including which of the following

  1. Establishment of new incident information and practice sharing forums
  2. Formation of regional support networks
  3. Enhanced collaboration with professional societies
  4. Enriched data analytics and modified responsible metrics reporting
  5. Continuous improvement
1,2 and 4
All of the above
5.

Under section 3, DuPont La Porte did not have audible or visual alarms on or in the manufacturing building to alert field personnel of a methyl mercaptan release automatically.
True
False
6. DuPont’s technical standard for methyl mercaptan states that methyl mercaptan gas is colorless and lighter than air. (Physical Properties of methyl mercaptan)
True
False
7. On November 15, 2014, approximately how many pounds of highly toxic methyl mercaptan was released from an insecticide production unit (Lannate® Unit).
24,000 pounds
50,000 pounds
8. According to Figure 15, who has the role to coordinate media relations and prepare press release.
Toxic Chemical release at DuPont in La Porte, Texas 2
Public Relations
Sales
9. What does CSB stands for?
U.S. Clinical Safety and Hazard Investigation Board
U.S. Chemical Safety and Hazard Investigation Board
10. According to figure 19, the company size that require audit requirements of 8 facilities + HQ
Toxic Chemical release at DuPont in La Porte, Texas 3
41+ facilities
26 – 40 facilities
11.

Which of the following is NOT identified as a themes of process safety culture by CCPS in the book GuidelinesforRiskBasedProcess Safety.

  1. Maintain a sense of danger
  2. Combat normalization of deviance
  3. Do not establish an imperative for safety
  4. Perform valid/timely hazard/risk assessments
  5. Ensure open and frank communications
  6. Learn and advance the culture
1 and 3
1,3 and 5
12. In section 2.1, it is mentioned that DuPont’s methyl mercaptan technical standard identifies the potential to form a hydrate at__________ temperature.
low
high

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