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. 7.26 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
3. 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
4. 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
5. 7.16 An ullage gauge is the same thing as an outage gauge. a. True b. False c. d.
6. 7.12 On a shore tank, what is the term for the distance between the Reference Gauge Point and the Datum Point, as measured at the time of gauging? a. Observed reference point b. Reference gauge height c. Total gauge height d. Observed reference height
7. 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
8. 7.48 What is the minimum amount of time the bob should stay in position while water cutting a heavy crude oil? a. 10 seconds b. 30 seconds c. 60 seconds d. There is no set time
9. 7.01 What is commonly meant by the term dip? a. Ullage b. Innage c. Free water measurement d. Swing gauge
10. 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.
11. 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
12. 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.
13. 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.
14. 7.38 If there is a discrepancy between Reference Gauge Height and Observed Gauge Height when gauging a shore tank what action should be taken? a. Adjust the gauge to observed reference height b. Ullage the tank c. Recheck the gauge, make a note of the difference and inform your supervisor d. The difference can be ignored it as long as the ship to shore difference does not exceed 0.5%
15. 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
16. 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
17. 7.15 An innage (dip) tape and bob may be used to take an outage (ullage) gauge. a. True b. False
18. 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
19. 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
20. 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
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