SECTION 5 - SAFETY
คำชี้แจง - ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้ - ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้ - เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 45 ข้อขึ้นไป
แบบทดสอบนี้ มีจำนวนข้อสอบ 90 ข้อ หากต้องการเพิ่มจำนวนข้อ ให้เลือก เพิ่มจำนวนข้อเป็น 20 ข้อ 30 ข้อ 50 ข้อ

1. 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 2. 5.06 When lifting anything heavy, which muscles should take most of the weight? a. Upper arm muscles b. Leg muscles c. Back muscles d. Answers a., b. and c. are all correct, to distribute the load equally 3. 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 4. 5.05 When gauging a tank that is emitting vapours, where should you position yourself? a. It is not important b. Up-wind of the gauge hatch c. With the wind in your face d. With the wind at your left or right side 5. 5.32 Why should pumping be suspended when first-in or first-foot samples are taken? a. To allow any gas to dissipate b. To allow static electricity to dissipate c. So the vapours don t blow in your face d. To give time for analysis results 6. 5.84 What type of respirator filter cartridges should you use for protection against hydrogen sulfide? a. Acid Gas b. None. Only a self contained breathing apparatus is acceptable c. Organic Vapour d. Radionucleides, highly toxic dusts, mists and fumes 7. 5.50 What do the initials UEL stand for? a. Upper environmental level b. Unknown environmental level c. Upper explosive limit d. Unknown explosive levels 8. 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 9. 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 10. 5.57 Benzene is a health hazard. Which of the following are likely to contain benzene? a. Crude Oil b. Gasoline c. Ethylbenzene d. Answers a., b. and c. are all correct 11. 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 12. 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 13. 5.51 What does an explosimeter (explosion meter) measure? a. The amount of oxygen in a space b. Whether a space is safe for entry c. Whether or not there is an explosive atmosphere in a space d. The flash point of a gas mixture. 14. 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 15. 5.12 All samples which are transported between terminals and laboratories or other installations should be labelled in accordance with the globally harmonised system for classification and labelling of chemicals (GHS). a. True b. False 16. 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 17. 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? a. 5 ppm (10 ppm in USA) b. 1 ppm (2 ppm in USA) c. 15 ppm (20 ppm in USA) d. 0.1 ppm (0.2 ppm in USA) 18. 5.88 May an inspector board a vessel by means of using a Pilot s ladder? a. Yes b. No 19. 5.13 What information must GHS sample labels contain? a. Hazard pictograms, signal words and hazard statements b. Product name and precautionary statements c. Information in both a. and b. above d. Information in a. and b. above and supplier information, including a telephone number 20. 5.47 Someone must always stand watch at the entrance to the confined space while you are in it. a. True b. False 21. 5.27 What can help prevent a build-up and/or discharge of static electricity when sampling? a. Use of a sampling cord made of synthetic fibre b. Tying the end of the sampling cord to the railing of the tank c. Use of a sampling cord that contains no synthetic fibre d. Holding the sample cord against the gauge hatch throughout the sampling operation 22. 5.23 While sampling a crude ship, the fire alarm sounds. What action should be taken? a. Grab a type C fire extinguisher and assist the crew b. Close the hatch and call for the launch c. Continue sampling because the crew will take care of the fire d. Immediately secure your area and report to the muster point 23. 5.38 A SDS will list what type of protective equipment is required when working with a particular material. a. True b. False 24. 5.09 What should be the first reaction to any injury accident? a. Raise the alarm to call for help b. To protect the injured person, if possible without risk to yourself, from exposure to further injury c. To render First Aid d. To report immediately to the person s supervisor 25. 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? a. Less than 15% b. Less than 10% c. Less than 1% d. Less than 0.5% 26. 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 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. 5.01 What should be the first source of information when preparing to sample a new product? a. The International Safety Guide for Oil Tankers and Terminals (ISGOTT) b. The Petroleum Handbook c. The Safety Data Sheet (SDS) for that product d. Energy Institute HM6 / ISO 3170 / ISO 3171 / API Chapter 8 29. 5.22 When using a metal tape to gauge a tank, the tape should always stay in contact with the gauge hatch. a. True b. False 30. 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) 31. 5.25 How can the opportunity for a build-up and/or discharge of static electricity be reduced? a. By wearing rubber gloves b. By not allowing your hands to slide on the hand rail c. By grounding yourself and your equipment before opening the gauge/sample hatch and during subsequent operations d. By using stainless steel equipment 32. 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 33. 5.34 What must you do in order to transport flammable liquid samples on a public highway? a. Fully label all samples b. Place the samples in approved DOT containers c. Consult a Safety Data Sheet for the product being transported d. Answers a., b. and c. are all correct 34. 5.41 What is the safe oxygen content range in a confined space? a. Between 19.5% and 21.0% b. Between 18.6% and 20% c. Between 19% and 25% d. Answers a., b. and c. are all wrong 35. 5.42 Products have defined limits of combustion. What are these? a. The Permissible Exposure Limit and the Threshold Limit Value b. The Lower Explosive Limit, Upper Explosive Limit and the Flash Point c. The Flash Point and the Threshold Limit Value d. The Permissible Exposure Limit and the Lower Explosive Limit 36. 5.85 When working you must always wear a H2S monitor. a. True b. False 37. 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 38. 5.36 What is the most informative source of information about the hazards of a product or chemical? a. The job sheet b. The Bill of Lading c. The Safety Data Sheet d. The operations supervisor 39. 5.60 What is the minimum required respirator for working in a benzene environment that is greater than the permitted exposure limit? a. Self contained breathing apparatus b. Full face respirator with an organic vapor cartridge c. Half-mask respirator with an organic vapor cartridge d. Half-mask respirator with an acid gas cartridge 40. 5.76 Hydrogen sulfide is probably the most dangerous gas commonly encountered in the petroleum industry. a. True b. False 41. 5.73 When working in an environment suspected of containing H2S what is the only effective protection? a. Full face respirator b. Half mask respirator c. Self-contained breathing apparatus (SCBA) d. Answers a., b. and c. are all correct 42. 5.58 The appearance and characteristic odor of benzene is? a. Clear colorless liquid with a sweet odor b. Clear colorless liquid with a sour odor c. Light brown liquid with no distinguishable odor d. Light brown liquid with a strong pungent odor 43. 5.55 Which of the following conditions can cause false readings on an explosion meter? a. Low hydrocarbon vapor content b. High moisture content c. Low oxygen content d. Both b. and c. are correct 44. 5.63 Can gasoline contain benzene? a. Yes b. No 45. 5.69 Hydrogen sulfide may be present in all petroleum products, crude oil and many types of petrochemicals. a. True b. False 46. 5.40 Which of the following are considered to be confined spaces? a. A cofferdam b. An external floating roof tank c. A ship s pump-room d. Answers a., b. and c. are all correct 47. 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 48. 5.78 What is the maximum permissible 8 hour TWA (time weighted average) exposure level of hydrogen sulfide? a. 5 ppm (10 ppm in USA) b. 15 ppm (20 ppm in USA) c. 25 ppm (50 ppm in USA) d. 30 ppm (60 ppm in USA) 49. 5.87 Ladders, planks, and scaffold boards should not be used as walkways (i.e. when boarding vessels, moving between barges, etc.) a. True b. False c. Only when in exposed seaway conditions d. Only when no gangways are available 50. 5.15 Which of the following is defined as a corrosive liquid? a. An acid solution b. A caustic solution c. Acid and caustic solutions are not corrosive d. Acid and caustic solutions are both corrosive ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

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