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. 2.39 How is list defined?1) a. The difference between the starboard draft and the port freeboard
2) b. The leaning or inclination of a vessel expressed in degrees to port or starboard
3) c. The average of the starboard draft and the port draft expressed in degrees port or starboard
4) d. The difference between the forward and aft draft
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3. 2.20 How is an all levels sample obtained?1) 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.
2) b. By blending upper, middle and lower samples from the same tank.
3) 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.
4) 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.
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4. 2.24 What is the volume of all material in a tank at the observed temperature less the free water called?1) a. Total Observed Volume (TOV)
2) b. Gross Standard Volume (GSV)
3) c. Gross Observed Volume (GOV)
4) d. Remaining On Board (ROB)
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5. 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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