SECTION 5 - SAFETY
คำชี้แจง - ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้ - ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้ - เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 27 ข้อขึ้นไป
แบบทดสอบนี้ มีจำนวนข้อสอบ 90 ข้อ หากต้องการเพิ่มจำนวนข้อ ให้เลือก เพิ่มจำนวนข้อเป็น 20 ข้อ 30 ข้อ 50 ข้อ

1. 5.19 What does H2S stand for? a. Water b. Hydrogen c. Hydrogen sulfide d. Dihydrosodium 2. 5.14 The GHS applies to: a. sample labels only b. Safety Data Sheets (SDSs) only c. sample labels and SDSs d. specialised chemicals only 3. 5.68 How heavy are benzene vapours? a. Lighter than air b. Heavier than air c. Same as air d. Answers a., b. and c. are all wrong 4. 5.82 What is the short term exposure limit (STEL) for hydrogen sulfide? a. 15 ppm (30 ppm in USA) b. 10 ppm (20ppm in USA) c. 25 ppm (50 ppm in USA) d. 30 ppm (60 ppm in USA) 5. 5.04 What is the minimum personal protective equipment required when sampling? a. Gloves, respirator, hard hat and SCBA b. Gloves, eye protection, hard-hat, flame retardant uniform & safety shoes c. Gloves, face-shield and sun glasses d. Gloves, uniform and SCBA 6. 5.21 Before gauging a tank, how can static electricity be discharged from your body? a. By using a tank gauge meter b. By touching a grounded structure such as a tank railing, with bare hands c. By using natural fiber sampling cords d. By touching a grounded structure such as a tank railing, while wearing rubber gloves 7. 5.81 What is the maximum permissible 8 hour TWA (time weighted average) exposure level of H2S? a. 30 ppm (60 ppm in USA) b. 25 ppm (50 ppm in USA) c. 15 ppm (20 ppm in USA) d. 5 ppm (10 ppm in USA) 8. 5.80 Refineries are not the only sources of industrial hydrogen sulfide (H2S). Which of the following are other sources? a. Pulp Mills b. Any agricultural facility where decay of organic matter may occur c. Drilling Rigs d. Answers a., b. and c. are all correct 9. 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? a. Get out of the tank area immediately b. Take a deep breath and run for the tank ladder c. Lie down because there is more oxygen closer to the ground d. Immediately put on your respirator with organic cartridges 10. 5.39 When does a confined space exist on a tank with an external floating roof? a. When the roof is located anywhere under the top ring or course of the tank plates b. Only when the tank is empty c. Only when the roof is resting on its legs d. Answers a., b. and c. are all wrong 11. 5.56 What is the current exposure limit for benzene (8 hour time weighted average)? a. 10 ppm b. 3 ppm c. 5 ppm d. 1 ppm 12. 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? a. The atmosphere in the tank contains 15% oxygen b. The atmosphere in the tank is 15% of the lowest concentration of an explosive mixture of air and hydrocarbon vapours c. The atmosphere in the tank is 15% hydrocarbon vapours d. The atmosphere in the tank is a 15% mixture of air and hydrocarbon vapours 13. 5.53 What does an oxygen meter measure? a. The percentage of oxygen below the LEL of a hydrocarbon/air mixture b. The amount of oxygen needed to make a confined space safe for entry c. The percentage of oxygen contained in the atmosphere being sampled d. Answers a., b. and c. are all wrong 14. 5.83 Why is the sense of smell not reliable for detecting hydrogen sulfide? a. It is difficult to detect by sense of smell b. The level at which you can smell it is above the permissible exposure limit c. At 100 ppm a person s sense of smell is deadened within minutes, thereby giving that person a false sense of security d. You might have a cold and be unable to breath through your nose 15. 5.85 When working you must always wear a H2S monitor. a. True b. False 16. 5.54 What is the normal oxygen content of the air? a. 15.1% b. 19.1% c. 20.9% d. 25.9% 17. 5.37 Who can supply an SDS? a. The manufacturer of the material b. The seller of the material c. The distributor of the material d. Answers a., b. and c. are all correct 18. 5.66 What is the appearance and characteristic odour of benzene? a. Clear colourless liquid with a sweet odour b. Clear colourless liquid with a sour odour c. Light brown liquid with no distinguishable odour d. Light brown liquid with a strong pungent odour 19. 5.38 A SDS will list what type of protective equipment is required when working with a particular material. a. True b. False 20. 5.28 Why is it important to wear gloves while sampling? a. So that the sample is not contaminated b. To prevent your hands becoming dirty c. To prevent hazardous substances being absorbed through the skin d. Answers a., b. and c. are all correct 21. 5.86 What is the principal limitation of a filter or cartridge respirator? a. It does not supply oxygen b. The face piece tends to fog up c. The expense to replace the cartridges d. Keeping the face piece from sweating up 22. 5.35 What is the correct source of information about the hazards of any product being inspected? a. The inspector s supervisor b. A knowledgeable chemist c. The inspector s previous experience d. Safety Data Sheets 23. 5.10 The responsibility for an inspector complying with the safety regulations in any terminal belongs to? a. The terminal staff b. The terminal s safety officer c. The inspector d. The inspector s manager 24. 5.64 Workers who are regularly exposed to benzene should have a regular medical examination. a. True b. False 25. 5.08 Which of the following safety equipment is not required on every job? a. H2S monitor b. SCBA c. Hard hat, safety footwear, gloves d. Long-sleeve, fire resistant clothing 26. 5.07 When are inspectors permitted to operate valves on board vessels? a. When accompanied by an authorised person on board b. When no-one else is around to do it c. When the vessel staff are too busy to do it themselves d. Inspectors must not operate vessel valves 27. 5.75 Organic filter respirators are sufficiently effective in a hydrogen sulphide atmosphere to be used for escape purposes. a. True b. False 28. 5.67 What effects may result from chronic exposure (long term) to benzene? a. Loss of vision b. Various blood disorders ranging from anemia to leukemia c. Impaired Disability Syndrome (IDS) d. Answers a., b. and c. are all correct 29. 5.48 What do the initials LEL stand for? a. Low explosion location b. Low environmental levels c. Lower environmental level Lower explosive limit 30. 5.18 A hard hat s most important feature, when worn, is the distance between the shell and the wearer s head. a. True b. False ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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