1. 2.08 What is clingage?1) a. The wedge shaped volume of oil remaining in a tank after discharge
2) b. The non-liquid wedge-shaped volume of oil remaining in a tank after discharge
3) c. The cargo that adheres to the internal vertical surfaces of a tank after it has been emptied.
4) d. The ability of a liquid to cling to the inside surface of a container
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2. 2.05 What does the abbreviation S&W stand for?1) a. Sand and Water
2) b. Sediment and Waste
3) c. Scale and Water
4) d. Sediment and Water
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3. 2.01 What does the API Gravity scale indicate?1) a. Density
2) b. Volume
3) c. Weight in Vacuum
4) d. Ratio of weight to density
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4. 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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5. 2.14 What is an emulsion?1) a. A heavy viscous liquid
2) b. A heavy viscous liquid containing a large amount of entrained sediment
3) c. An oil & water mixture that does not readily separate
4) d. A layer of free water located above a heavy viscous petroleum product
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