| 1. 5.90 The Short Term Exposure Limit (STEL) defines exposure to a substance over how long? |
| 2. 5.37 Who can supply an SDS? |
| 3. 5.64 Workers who are regularly exposed to benzene should have a regular medical examination. |
| 4. 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? |
| 5. 5.05 When gauging a tank that is emitting vapours, where should you position yourself? |
| 6. 5.74 When working in an environment suspected of containing H2S, personal monitors must show a level below (or provide an alarm at) what limit? |
| 7. 5.49 If the atmosphere in a cargo tank is stated to be below the LEL what does this mean? |
| 8. 5.09 What should be the first reaction to any injury accident? |
| 9. 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? |
| 10. 5.55 Which of the following conditions can cause false readings on an explosion meter? |
| 11. 5.87 Ladders, planks, and scaffold boards should not be used as walkways (i.e. when boarding vessels, moving between barges, etc.) |
| 12. 5.75 Organic filter respirators are sufficiently effective in a hydrogen sulphide atmosphere to be used for escape purposes. |
| 13. 5.67 What effects may result from chronic exposure (long term) to benzene? |
| 14. 5.68 How heavy are benzene vapours? |
| 15. 5.69 Hydrogen sulfide may be present in all petroleum products, crude oil and many types of petrochemicals. |
| 16. 5.43 What defines a confined space? |
| 17. 5.86 What is the principal limitation of a filter or cartridge respirator? |
| 18. 5.01 What should be the first source of information when preparing to sample a new product? |
| 19. 5.76 Hydrogen sulfide is probably the most dangerous gas commonly encountered in the petroleum industry. |
| 20. 5.17 A chemical has a strong odour. What does this indicate? |
| 21. 5.39 When does a confined space exist on a tank with an external floating roof? |
| 22. 5.60 What is the minimum required respirator for working in a benzene environment that is greater than the permitted exposure limit? |
| 23. 5.16 Corrosive liquids will directly injure the body tissue on contact. |
| 24. 5.41 What is the safe oxygen content range in a confined space? |
| 25. 5.61 When working with benzene, in addition to a respirator, hard hat and safety footwear, what other personal protective equipment should be worn? |
| 26. 5.77 What are the characteristics of hydrogen sulfide? |
| 27. 5.42 Products have defined limits of combustion. What are these? |
| 28. 5.29 What should you do to avoid the build-up and/or discharge of static electricity when using a portable electronic thermometer (PET)? |
| 29. 5.13 What information must GHS sample labels contain? |
| 30. 5.47 Someone must always stand watch at the entrance to the confined space while you are in it. |
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