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. 5.64 Workers who are regularly exposed to benzene should have a regular medical examination. a. True b. False 2. 5.11 Portable electronic measurement equipment must be _______ immediately before gauging? a. Checked b. Cleaned c. Calibrated d. Earthed (grounded) 3. 5.48 What do the initials LEL stand for? a. Low explosion location b. Low environmental levels c. Lower environmental level Lower explosive limit 4. 5.38 A SDS will list what type of protective equipment is required when working with a particular material. a. True b. False 5. 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 6. 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 7. 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 8. 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 9. 5.44 Before entering a confined space, which tests are required? a. Oxygen content b. Lower explosive limit c. Toxic vapour testing d. Answers a., b. and c. are all correct 10. 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 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. 5.10 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 13. 5.47 Someone must always stand watch at the entrance to the confined space while you are in it. a. True b. False 14. 5.17 A chemical has a strong odour. What does this indicate? a. That a hazard exists b. That the vapour concentration is low c. That the vapour concentration is high d. Odour is an unreliable source of specific information regarding a chemical 15. 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 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. 5.85 When working you must always wear a H2S monitor. a. True b. False 18. 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 19. 5.31 What is the main component of inert gas normally used on special chemical vessels? a. Nitrogen b. Carbon dioxide c. Carbon monoxide d. Hydrogen 20. 5.75 Organic filter respirators are sufficiently effective in a hydrogen sulphide atmosphere to be used for escape purposes. a. True b. False 21. 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 22. 5.71 Who or what should you consult if you need to know detailed safety or exposure information about benzene? a. Your doctor or pharmacist b. Your Safety Manual c. The Safety Data Sheet d. The International Safety Guide for Oil Tankers and Terminals (ISGOTT) 23. 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 24. 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) 25. 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 26. 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 27. 5.59 How can benzene enter your body? a. By inhalation b. By absorption through the skin c. By Ingestion d. Answers a., b. and c. are all correct 28. 5.26 A portable electronic thermometer should always be grounded after the probe has been lowered into the liquid. a. True b. False 29. 5.46 Which of the following are examples of a confined space? a. A cargo tank b. A grain silo c. A pump-room on a ship d. Answers a., b. and c. are all correct 30. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

1. เรื่อง กิจกรรมคลายเครียด ป..4

2. ภาษาไทย ป.3 ชุดที่14

3. วิทยาศาสตร์ ป.5

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