SECTION 7 - TANK GAUGING

คำชี้แจง

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- ส่วนนี้จะไม่มีการบันทึกผลสอบ หากต้องการบันทึกโปรดสมัครสมาชิก

- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้

- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 30 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้

- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 80 หรือ 24 ข้อขึ้นไป

ส่วนนี้จะไม่มีการบันทึกผลสอบ และแสดงเฉลยแบบทดสอบ หากต้องการบันทึก และรายงานการทำแบบทดสอบ โปรดสมัครสมาชิก

1. 7.26 To determine the ullage of the liquid in a tank using an innage tape and bob assembly, what procedure should be followed? a. Read the immersion depth of the tape at the reference gauge point and subtract the oil cut reading on the bob b. Read the immersion depth of the tape at the reference gauge point and add the oil cut reading on the bob c. Subtract the oil cut on the bob from the tank reference gauge height indicated on the tank capacity table d. Subtract the oil cut on the bob from the measured tank reference gauge height
2. 7.27 Which industry documents describe the procedures for the gauging of petroleum or petroleum products? a. API MPMS Chapter 17.1/EI HM28 b. API MPMS Chapter 17.9/EI HM49 c. API MPMS Chapter 3/EI HM4 d. API MPMS Chapter 1/EI HM0
3. 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
4. 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
5. 7.55 What is the purpose of a floating roof correction in a shore tank calculation? a. To account for the compression of the liquid due to the roof weight b. To account for the volume of liquid displaced as a result of the weight of the roof c. To allow for the effect of the roof temperature on the temperature of the product d. To allow for the effect of the temperature on the thickness of the roof
6. 7.23 When taking a level measurement three gauge tape readings should be within___ a. 12mm or 1/2 inch b. 6mm or 1/4 inch c. 3mm or 1/8 inch d. 9mm or 1/3 inch
7. 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.
8. 7.29 When using water finding paste in light products, how long should the gauging bar be left in position? a. A minimum of 5 seconds b. A minimum of 10 seconds c. A minimum of 30 seconds d. A minimum of 45 seconds
9. 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.
10. 7.19 Which gauge measures the distance from the datum plate or tank bottom to the surface of the liquid? a. Innage b. Ullage c. d.
11. 7.09 What is the observed gauge height of a tank? a. The distance from the reference gauge point to the bottom of the tank or the datum plate as measured during the gauging operation b. The distance from the reference gauge point to the bottom of the tank or the datum plate as shown on the tank capacity tables c. The distance from the ullage pipe to the liquid level d. Usually written somewhere on the ullage pipe
12. 7.35 When gauging a tank by the innage method, a comparison between the observed and reference gauge height is made to ensure which of the following? a. The gauge tape and bob are suspended in a vertical position within the tank. b. The gauge bob is in contact with the tank bottom or datum plate c. The tape has not been lowered too far into the tank d. Answers a., b. and c. are all correct
13. 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
14. 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
15. 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
16. 7.20 Which gauge measures the distance from the surface of the liquid to the tank reference gauge point? a. Innage or dip b. Ullage c. d.
17. 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
18. 7.42 How often should a working gauge tape be inspected for wear and tear? a. Daily or prior to each use b. Once per week c. Once per month d. Once per year
19. 7.33 The use of non-slotted standpipes is not recommended for custody transfer measurements. a. True b. False c. d.
20. 7.32 For what reasons may a quantity of free water (water bottoms) be maintained within a shore tank? a. To permit easy determination of the shore tank free water quantity. b. So that a certain percentage of free water can be pumped with each movement in order to aid in S&W blending of cargoes. c. To negate any effect that bottom flexing of the tank bottom would have on tank measured quantities. d. To aid in detection of any product seepage from the tank.
21. 7.15 An innage (dip) tape and bob may be used to take an outage (ullage) gauge. a. True b. False
22. 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
23. 7.04 What is a master tape? a. The only tape that may be used to take custody transfer measurements b. A tape belonging to the National Certification Body c. A tape to be used only for tank calibration d. A reference tape, traceable to National Standards to be used only for verifying the accuracy of tapes used in the field
24. 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
25. 7.46 Which of the following is acceptable for the determination of free water for marine vessel custody transfer measurements? a. A zone sampler b. A portable measurement unit (PMU) c. A bob with water-finding paste d. Answers b. and c. are correct
26. 7.05 What does an innage/sounding measure? a. The distance from the surface of the liquid in the tank to the reference gauge point of the tank. b. The distance between the point where the floating roof of the tank is floating freely and the point where it is resting fully on it s supports. c. The level of liquid in a tank measured from the datum plate or tank bottom to the surface of the liquid. d. The distance from the tank datum plate or bottom to the tank reference gauge point.
27. 7.39 When inspecting Heavy Fuel Oil is it necessary to check for free water? a. Yes b. No c. d.
28. 7.22 What is the term for the distance from the datum plate or tank bottom to the reference gauge point, as shown on the tank capacity table? a. Observed gauge height b. Innage gauge height c. Reference gauge height d. Ullage gauge height
29. 7.47 If during gauging, the water cut falls on the clip of the gauge tape, what must be done? a. Repeat the water cut measurement using a water bar b. Repeat the water cut taking an ullage of the water c. Interpolate the cut d. Answers a. and b. are correct
30. 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
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4. ข้อสอบ บรรจุครูผู้ช่วย วิชาเอก ปฐมวัย พร้อมเฉลย 50 ข้อ

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