SECTION 7 - TANK GAUGING

คำชี้แจง

- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้

- ส่วนนี้จะไม่มีการบันทึกผลสอบ หากต้องการบันทึกโปรดสมัครสมาชิก

- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้

- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 30 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้

- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 80 หรือ 24 ข้อขึ้นไป

ส่วนนี้จะไม่มีการบันทึกผลสอบ และแสดงเฉลยแบบทดสอบ หากต้องการบันทึก และรายงานการทำแบบทดสอบ โปรดสมัครสมาชิก

1. 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.
2. 7.49 When is a provisional gauge or insurance gauge taken prior to the official gauge? a. When the official gauge will not be taken for a significant period of time after completion of cargo operations. b. When it is required by your employer s insurance company c. When it is required by the Charter Party d. Answers a., b. and c. are all correct
3. 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
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. 7.17 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
6. 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
7. 7.51 If a tank s capacity table is an innage or dip table, what is the preferred method of gauging? a. Side Gauge b. Ullage c. Innage or dip d. Outage
8. 7.31 To try to ensure gauging accuracy in shore tanks, what is the minimum recommended number of dips/gauges? a. 1 b. 2 identical dips out of three c. 3 identical dips out of 4 d. 4 dips, averaged
9. 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
10. 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
11. 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
12. 7.01 What is commonly meant by the term dip? a. Ullage b. Innage c. Free water measurement d. Swing gauge
13. 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
14. 7.56 What action should an inspector take when requested to set a stop gauge? a. Refuse, it s not an inspector s reponsibility b. Follow the company s procedure c. Set the stop gauge and take full responsibility d. Tell the vessel/terminal personnel to set the stop and then check it for accurac
15. 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
16. 7.08 An innage gauge bob is pointed to aid in penetration of tank non-liquid. Where is its zero point? a. Top of the eye b. Bottom of the eye c. Tip of the bob d. Inside of the tape swivel
17. 7.52 What do slip-tube gauging devices on rail tank cars measure? a. Any liquid in the tank car deeper than 75 mm [3 ] b. Any liquid under positive pressure in a tank car c. Any vapour in a tank car d. Any vapour with a depth greater than 1.2 m [4 feet]
18. 7.02 What occurs when a shore tank is filled to a level in the critical zone? a. The flexing bottom of a tank is at its highest point b. The tank will overflow if more liquid is added c. The floating roof is no longer resting on its legs d. The floating roof is only partially afloat and the capacity table may be inaccurate
19. 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
20. 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
21. 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.
22. 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
23. 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
24. 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.
25. 7.37 Can accurate volumes be obtained by gauging a tank while the roof is in the critical zone? a. Yes, when the tank legs are on low setting b. Yes, when the tank legs are on high setting c. No, it cannot be done d. No, unless it is an internal floating roof
26. 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
27. 7.10 What is innage or dip? a. The distance from the datum plate or the tank bottom to the surface of the product b. The measurement from the tank bottom to reference point c. The cut found on the bob d. The distance from the reference point to surface of the product
28. 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
29. 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.
30. 7.34 When gauging a terminal storage tank prior to loading a barge, an inspector notes that his observed gauge height does not match the reference gauge height. On gauging the same tank on completion of loading the barge he again observes the same difference in observed and reference gauge heights, such that both opening and closing observed gauge height readings are identical. Can the gauges obtained be used for determining the loaded volume? a. Yes b. No c. d.
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4. ข้อสอบ บรรจุครูผู้ช่วย วิชาเอก ปฐมวัย พร้อมเฉลย 50 ข้อ

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