1. 2.02 What is a hydrometer?1) a. A device to measure viscosity
2) b. A device to measure hydration
3) c. A device to measure density
4) d. A device to measure water flow
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2. 2.12 The density of a liquid will change as its temperature changes.1) a. True
2) b. False
3)
4)
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3. 2.43 What is a wall wash test?1) a. The activity of rinsing the wall of a tank with a solvent and obtaining a sample of the previous product(s) to determine compatibility with the product to be loaded
2) b. The activity of rinsing a tank with clean, fresh water following tank cleaning to ensure that the product to be loaded will not be contaminated
3) c. The activity of washing the walls of a tank to remove all traces of the product previously contained in the tank
4) d. Answers a., b. and c. are all wrong
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4. 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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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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