1. 2.13 What is relative density?1) 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
2) b. The relative ability of a liquid to remain in a liquid state when cooled below standard freeze point
3) c. A measure of the relative viscosity of a liquid
4) d. The ratio of a given mass of a liquid when compared with its mass at 60 °F
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2. 2.09 What is a datum plate?1) a. A level metal plate located directly under the reference gauge point to provide a fixed contact surface from which liquid depth measurement can be made.
2) b. A metal plate located next to the gauging point on a tank indicating the reference gauge height.
3) c. A metal plate located close to the gauging point on a tank listing all the relevant tank data
4) d. A level metal plate located at the top of a gauge hatch on a tank from which the gauge height is measured.
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3. 2.30 What is ullage?1) a. The depth of the empty space above the liquid in a tank
2) b. The height of the free water in a tank
3) c. The length of an ullage tape
4) d. The depth of the liquid in a tank
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4. 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
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5. 2.42 What is load on top?1) 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.
2) b. The act of commingling existing onboard quantity with cargo being loaded
3) c. Answers a. and b. are correct
4) d. Answers a., b. and c. are all wrong
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