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. 5.77 What are the characteristics of hydrogen sulfide? a. It is a pale yellow gas with a sweetish taste and strong pungent odour b. It is a pale yellow gas with the odour of rotten eggs c. It is a colourless gas with a sweetish taste and the odour of rotten eggs d. It is a colourless gas with little or no odour 2. 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 3. 5.20 To find out if a material is hazardous, you must consult the SDS. a. True b. False 4. 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 5. 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 6. 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 7. 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 8. 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. 9. 5.62 Which of the following statements are correct, when working with benzene? a. As a minimum, a full face or half mask cartridge respirator must be worn for closed or restricted system gauging and sampling b. A self contained breathing apparatus must be used in all open tank situations c. A self contained breathing apparatus must be used if the exposure is expected to exceed 50ppm d. Answers a., b. and c. are all correct 10. 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 11. 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 12. 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 13. 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 14. 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 15. 5.69 Hydrogen sulfide may be present in all petroleum products, crude oil and many types of petrochemicals. a. True b. False 16. 5.75 Organic filter respirators are sufficiently effective in a hydrogen sulphide atmosphere to be used for escape purposes. a. True b. False 17. 5.33 Shipping declaration forms are required whenever a hazardous material is transported on a public road or highway. a. True b. False 18. 5.43 What defines a confined space? a. It has limited means of access and exit b. It is not designed for continuous occupation c. It has limited natural ventilation d. Answers a., b. and c. are all correct 19. 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 20. 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 21. 5.70 What are the effects of acute exposure (short term) to benzene? a. Shortness of breath, irritability, headache, nausea, dizziness, intoxication b. Irritation of the eyes, nose and respiratory tract c. Convulsions and loss of consciousness d. Answers a., b. and c. are all correct 22. 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 23. 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 24. 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 25. 5.38 A SDS will list what type of protective equipment is required when working with a particular material. a. True b. False 26. 5.64 Workers who are regularly exposed to benzene should have a regular medical examination. a. True b. False 27. 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 28. 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 29. 5.49 If the atmosphere in a cargo tank is stated to be below the LEL what does this mean? a. There is not enough oxygen in the tank to support combustion b. There is too much hydrocarbon vapor in the tank to support combustion c. Answers a. and b. are correct d. There is not enough hydrocarbon vapor in the tank to permit combustion. 30. 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 ให้ตรวจสอบชื่อนามสกุลว่ากรอกครบหรือไหม่ พร้อมกับตรวจข้อสอบว่าเลือกทำครบทุกข้อหรือไม่ ไม่ครบไม่ตรวจนะครับ

1. ข้อสอบ บรรจุครูผู้ช่วย วิชาเอก ปฐมวัย พร้อมเฉลย 50 ข้อ

2. ทวีปอเมริกาเหนือ

3. วิทยาการคำนวณ ป.5 ตัวชี้วัดที่ 4

4. คำถามก่อนเรียน