SECTION 2 – DEFINITIONS
หน้าแรก
คำชี้แจง
- ถ้าไม่กรอกทั้งชื่อ และนามสกุลของผู้ทำข้อสอบ ระบบจะไม่ตรวจข้อสอบให้
- ถ้าทำข้อสอบไม่ครบ ระบบจะไม่ตรวจข้อสอบให้
- เกณฑ์ตัดสินผ่านการทดสอบอยู่ที่ร้อยละ 90 หรือ 18 ข้อขึ้นไป
กรอกชื่อจริง
กรอกนามสกุล
ทุกครั้งที่เข้าทำแบบทดสอบเสร็จสมบูรณ์ จะได้รับแต้มเข้าใช้งาน 1 แต้ม | ส่วนนี้จะทำการบันทึกข้อมูลเพื่อออกใบรับรอง หากทำแบบทดสอบผ่านเกณฑ์ที่กำหนด
แบบทดสอบนี้ มีจำนวนข้อสอบ 44 ข้อ หากต้องการเพิ่มจำนวนข้อ ให้เลือก เพิ่มจำนวนข้อเป็น 20 ข้อ 30 ข้อ 50 ข้อ
1. 2.12 The density of a liquid will change as its temperature changes.
    a. True
    b. False


2. 2.20 How is an all levels sample obtained?
    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.
    b. By blending upper, middle and lower samples from the same tank.
    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.
    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.
3. 2.19 What is Total Calculated Volume (TCV)?
    a. GSV plus free water
    b. NSV plus free water
    c. GSV less sediment and water
    d. NSV plus sediment and water
4. 2.04 What is a permanent ballast tank?
    a. A tank that contains ballast at all times
    b. A tank that is designated to contain only ballast
    c. A tank that is used only to maintain a permanent list condition
    d. Answers a., b. and c. are all wrong
5. 2.24 What is the volume of all material in a tank at the observed temperature less the free water called?
    a. Total Observed Volume (TOV)
    b. Gross Standard Volume (GSV)
    c. Gross Observed Volume (GOV)
    d. Remaining On Board (ROB)
6. 2.23 What is the total volume of all material in a tank at the observed temperature called?
    a. Total Calculated Volume (TCV)
    b. Total Observed Volume (TOV)
    c. On Board Quantity (OBQ)
    d. Gross Observed Volume (GOV)
7. 2.01 What does the API Gravity scale indicate?
    a. Density
    b. Volume
    c. Weight in Vacuum
    d. Ratio of weight to density
8. 2.14 What is an emulsion?
    a. A heavy viscous liquid
    b. A heavy viscous liquid containing a large amount of entrained sediment
    c. An oil & water mixture that does not readily separate
    d. A layer of free water located above a heavy viscous petroleum product
9. 2.42 What is load on top?
    a. The shipboard practice of collecting water and water and oil mixtures resulting from ballasting and tank cleaning operations (usually in a slop tank) and subsequently loading cargo on top of it and pumping the mixture ashore at the discharge port.
    b. The act of commingling existing onboard quantity with cargo being loaded
    c. Answers a. and b. are correct
    d. Answers a., b. and c. are all wrong
10. 2.41 What has the same meaning as the term innage?
    a. Ullage
    b. Sounding
    c. Outage
    d. Answers a., b. and c. are all wrong
11. 2.38 How is trim defined?
    a. The same as the draft
    b. The difference between the forward and aft draft
    c. The average of the forward draft, the amidships draft, and the aft draft
    d. The leaning of the vessel to one side
12. 2.08 What is clingage?
    a. The wedge shaped volume of oil remaining in a tank after discharge
    b. The non-liquid wedge-shaped volume of oil remaining in a tank after discharge
    c. The cargo that adheres to the internal vertical surfaces of a tank after it has been emptied.
    d. The ability of a liquid to cling to the inside surface of a container
13. 2.21 How is a running sample obtained?
    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.
    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.
    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
    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
14. 2.39 How is list defined?
    a. The difference between the starboard draft and the port freeboard
    b. The leaning or inclination of a vessel expressed in degrees to port or starboard
    c. The average of the starboard draft and the port draft expressed in degrees port or starboard
    d. The difference between the forward and aft draft
15. 2.13 What is relative density?
    a. The ratio of the mass of a given volume of liquid at a stated temperature to the mass of an equal volume of pure water at a stated temperature