| 1. 5.48 What do the initials LEL stand for? |
| 2. 5.71 Who or what should you consult if you need to know detailed safety or exposure information about benzene? |
| 3. 5.01 What should be the first source of information when preparing to sample a new product? |
| 4. 5.89 When working in an area where peronal monitors indicate the presence of hydrogen sulfide you must wear SCBA |
| 5. 5.49 If the atmosphere in a cargo tank is stated to be below the LEL what does this mean? |
| 6. 5.77 What are the characteristics of hydrogen sulfide? |
| 7. 5.79 Which of the following exposure limits for H2S (for use with respirators) are correct? |
| 8. 5.04 What is the minimum personal protective equipment required when sampling? |
| 9. 5.43 What defines a confined space? |
| 10. 5.75 Organic filter respirators are sufficiently effective in a hydrogen sulphide atmosphere to be used for escape purposes. |
| 11. 5.61 When working with benzene, in addition to a respirator, hard hat and safety footwear, what other personal protective equipment should be worn? |
| 12. 5.54 What is the normal oxygen content of the air? |
| 13. 5.35 What is the correct source of information about the hazards of any product being inspected? |
| 14. 5.86 What is the principal limitation of a filter or cartridge respirator? |
| 15. 5.52 An explosimeter (explosion meter) measuring LEL% is utilized to sample the atmosphere within a cargo tank and a reading of 15% is observed. What does the reading mean? |
| 16. 5.30 What is the main component of inert gas used on crude oil vessels? |
| 17. 5.59 How can benzene enter your body? |
| 18. 5.24 As you enter a bunded/fire wall area to sample a fuel oil tank, you begin to feel dizzy. What action should you take? |
| 19. 5.32 Why should pumping be suspended when first-in or first-foot samples are taken? |
| 20. 5.21 Before gauging a tank, how can static electricity be discharged from your body? |
| 21. 5.51 What does an explosimeter (explosion meter) measure? |
| 22. 5.45 According to the International Safety Guide for Oil Tankers and Terminals (ISGOTT), for a tank to be safe for entry, what should the reading on a combustible gas detector be? |
| 23. 5.18 A hard hat s most important feature, when worn, is the distance between the shell and the wearer s head. |
| 24. 5.25 How can the opportunity for a build-up and/or discharge of static electricity be reduced? |
| 25. 5.33 Shipping declaration forms are required whenever a hazardous material is transported on a public road or highway. |
| 26. 5.41 What is the safe oxygen content range in a confined space? |
| 27. 5.82 What is the short term exposure limit (STEL) for hydrogen sulfide? |
| 28. 5.72 What is the most hazardous component of many crude oils? |
| 29. 5.07 When are inspectors permitted to operate valves on board vessels? |
| 30. 5.22 When using a metal tape to gauge a tank, the tape should always stay in contact with the gauge hatch. |
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