SECTION 7 - TANK GAUGING

คำชี้แจง

- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้

- ส่วนนี้จะไม่มีการบันทึกผลสอบ หากต้องการบันทึกโปรดสมัครสมาชิก

- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้

- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 30 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้

- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 80 หรือ 16 ข้อขึ้นไป

ส่วนนี้จะไม่มีการบันทึกผลสอบ และแสดงเฉลยแบบทดสอบ หากต้องการบันทึก และรายงานการทำแบบทดสอบ โปรดสมัครสมาชิก

1. 7.33 The use of non-slotted standpipes is not recommended for custody transfer measurements. a. True b. False c. d.
2. 7.14 When rainwater or snow accumulates on the roof of an external floating roof tank, what will happen to the gauged level in the tank? a. It will decrease b. It will remain the same c. It will increase d. Answers a., b. and c. are all wrong
3. 7.13 What is a tank datum plate? a. The position on a tank where the gauge height is noted. b. The point marked on the gauge hatch of a tank to indicate the position from which the tank is to be gauged. c. The plate on the tank shell that lists the tank general data such as roof weight, height of tank, etc. d. A plate placed in the tank and directly under the reference gauge point to provide a fixed contact surface.
4. 7.17 According to API MPMS Chapter 3.1A/EI HM4, when must gauge tapes be verified for accuracy? a. Before initial use and once per year b. Once per month c. Before each use d. Once every three months
5. 7.07 What is water finding paste used for? a. To determine the S&W of the product in the tank b. To detect the presence of suspended water within the product in the tank c. To indicate the product / free water interface within the tank d. Answers a., b. and c. are all wrong
6. 7.28 When gauging light products, it is permissible to use chalk or talcum powder to facilitate reading the cut on the tape. a. True b. False c. d.
7. 7.54 The floating roof of a shore tank displaces a certain volume of liquid when it is floating freely. What is the weight of the volume of liquid displaced equal to? a. The weight of the roof and attached deadwood b. The weight of the roof less the attached deadwood c. The weight of the roof adjusted for the density of the tank contents d. Answers a., b. and c. are all wrong
8. 7.24 Which of the following can affect the accuracy of tank s capacity table? a. The flexing of the tank bottom with the transfer of contents b. Expansion at the vertical middle (barreling) occuring during filling c. Accumulated deposits of previous contents on the tank shell d. Answers a., b. and c. are all correct
9. 7.44 How are free water measurements normally taken? a. By the innage method b. By the ullage method c. By the Heimlich method d. Answers a. and b. are correct
10. 7.50 What is one of the problems with water finding paste? a. It tends to freeze in cold weather b. It does not perform consistently with all crudes c. Tends to run down the bob d. It is easily confused with gasoline paste
11. 7.21 What is the measured distance from the datum plate or tank bottom to the reference gauge point called? a. The observed reference height b. The innage gauge height c. The reference gauge height d. The ullage gauge height
12. 7.57 When setting a min/max stop gauge an inspector should: a. Make calculations and provide the gauge closest to the requested volume b. Inspector s don t set stop gauges c. Tell the terminal to set the stop and you will check it for accuracy d. Make calculations and provide the gauge closest to the requested volume without exceeding the volume to be transferred
13. 7.40 If the density of a product within a tank is greater than the density of water, where would any free water in this tank be found? a. No free water would be found it as it would not settle out of this product but would remain in suspension b. On top of the product c. Below the product d. Answers a., b. and c. are all wrong
14. 7.41 According to common industry practice, How often must a gauging tape be checked for accuracy by comparison against a traceable master tape? a. Prior to each use b. Every six months c. Prior to initial use and at least annually d. At least once per week
15. 7.43 Which of the following statements regarding reference gauge heights is correct? a. They should be recorded from the calibration tables, before you start the tank gauging b. They should be checked against the observed gauge heights c. They should be included in the inspection report d. Answers a., b. and c. are all correct
16. 7.30 When using water finding paste in heavy oils, which of the following actions should you take to enable the paste to be read more easily? a. Gently blowing on the gauging bar to remove the heavy oil. b. Use a soft cotton rag or towel to remove the excess oil c. Use a suitable solvent to gently wash to the surface of the paste. d. Immerse the gauging bar in a container full of light product such as gasoline.
17. 7.45 When would a check be made for water on the top of a cargo? a. If the observed density is less 1000 kg/m3 [observed API gravity greater than 10.0] b. If the observed density is greater 1000 kg/m3 [observed API gravity less than 10.0] c. It is never necessary to check for the presence of water on top of a cargo d. Only for fuel oil cargoes
18. 7.11 What is the distance between the point where the floating roof begins to rest on its normal supports and the point where it begins to float freely known as? a. The floating level b. The lower leg level c. The critical zone d. The displacement level
19. 7.25 If a portable measurement unit (PMU) is used, which of the following procedures should be followed to measure free water on a vessel before discharge? a. Rely on the PMU alone for free water level measurement b. Use water-finding paste with a sounding rod/rule or dip tape c. Answers a. and b. are both correct d. Recommend to the terminal that the free water received and measured ashore be applied to the vessel figures
20. 7.39 When inspecting Heavy Fuel Oil is it necessary to check for free water? a. Yes b. No c. d.
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