SECTION 2 – DEFINITIONS
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รหัสวิชา 29492 SECTION 2 – DEFINITIONS
เพจนี้แสดงบนมือถือจำนวนครั้งละ 5 ข้อ ไม่ใช่สมาชิก
คำชี้แจง
- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้
- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้
- ผู้ทำข้อสอบจะมีเวลาในการทำข้อสอบเพียง 10 นาที หากเกินเวลา ระบบจะไม่ตรวจข้อสอบให้
1. 2.38 How is trim defined?
    1) a. The same as the draft
    2) b. The difference between the forward and aft draft
    3) c. The average of the forward draft, the amidships draft, and the aft draft
    4) d. The leaning of the vessel to one side
2. 2.15 What is Total Observed Volume (TOV)?
    1) a. The total measured volume of all petroleum liquids, sediment and water, and free water at observed temperature
    2) b. The total measured volume of all petroleum liquids, sediment and water but excluding free water, at observed temperature
    3) c. The total volume of all petroleum liquids and sediment and water, corrected to a standard temperature by the appropriate volume correction factor for the observed temperature and density
    4) d. The total measured volume of all petroleum liquids excluding water and sediment, at observed temperature
3. 2.20 How is an all levels sample obtained?
    1) a. By submerging an unstoppered sampler to a point near the tank draw-off outlet (suction) level and then raising it, all at a uniform rate, so that it is no more than 85% full on emerging from the liquid.
    2) b. By blending upper, middle and lower samples from the same tank.
    3) c. By submerging a stoppered sampler to a point as near as possible to the draw-off outlet (suction) level, then opening the sampler and raising it at a rate such that it is no more than 80% full as it emerges from the liquid.
    4) d. By submerging a stoppered sampler to the mid point of the product in a tank, then opening the sampler and raising and lowering it at a uniform rate until the sampler is full.
4. 2.21 How is a running sample obtained?
    1) a. by lowering an unstoppered sampler from the top of the oil to the level of the outlet (Suction) and returning it to the top of the oil at a uniform rate so that the sampler is no more than 85% full when withdrawn from the oil.
    2) b. by lowering a stoppered sampler to the level of the outlet, then opening the sampler and raising it at a uniform rate so that it is about 80% full when withdrawn from the oil.
    3) c. by lowering a stoppered sampler to the mid point of the tank contents, then opening the sampler and raising and lowering it at a uniform rate until it is full
    4) d. by lowering an unstoppered sampler to the mid point of the tank contents, then raising and lowering it at a uniform rate until it is full
5. 2.04 What is a permanent ballast tank?
    1) a. A tank that contains ballast at all times
    2) b. A tank that is designated to contain only ballast
    3) c. A tank that is used only to maintain a permanent list condition
    4) d. Answers a., b. and c. are all wrong

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