1. 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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2. 2.11 What is the formula for density?1) a. Length divided by width
2) b. Volume divided by temperature
3) c. Mass divided by volume
4) d. Mass divided by relative density
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3. 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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4. 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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5. 2.28 What term describes a vessel with the forward draft greater than the aft draft?1) a. Down by the stern
2) b. Trimmed by the head
3) c. Up at the bow
4) d. Listing dangerously
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