SECTION 5 - SAFETY
คำชี้แจง
- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้
- ผลสอบจะเก็บเพียง 300 ระเบียนสุดท้าย โดยเรียงจากเวลาล่าสุด
- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้
- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 30 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้
- เมื่อมีการตรวจคำตอบ ระบบจะบันทึกชื่อ และคะแนนลงฐานข้อมูล พร้อมเวลาเริ่มทำ และเวลาสิ้นสุด
- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 27 ข้อขึ้นไป
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1. 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
2. 5.88 May an inspector board a vessel by means of using a Pilot s ladder?
    a. Yes
    b. No


3. 5.16 Corrosive liquids will directly injure the body tissue on contact.
    a. True
    b. False


4. 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
5. 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
6. 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
7. 5.03 Regardless of the product, and in accordance with API Ch 8.1/ASTM D4057, what is the maximum level to which sample containers should normally be filled?
    a. 50%
    b. 80%
    c. 85%
    d. 100%
8. 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
9. 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)
10. 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
11. 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
12. 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
13. 5.89 When working in an area where peronal monitors indicate the presence of hydrogen sulfide you must wear SCBA
    a. True
    b. False


14. 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
15. 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
16. 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
17. 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
18. 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)
19. 5.90 The Short Term Exposure Limit (STEL) defines exposure to a substance over how long?
    a. 30 minutes
    b. 60 minutes
    c. 15 minutes
    d. 20 minutes
20. 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
21. 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
22. 5.75 Organic filter respirators are sufficiently effective in a hydrogen sulphide atmosphere to be used for escape purposes.
    a. True
    b. False


23. 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.
24. 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
25. 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
26. 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
27. 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
28. 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)
29. 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
30. 5.72 What is the most hazardous component of many crude oils?
    a. Benzene
    b. Toluene
    c. Xylene
    d. Hydrogen sulfide
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