1. 2.21 How is a running sample obtained?1) a. by lowering an unstoppered sampler from the top of the oil to the level of the outlet (Suction) and returning it to the top of the oil at a uniform rate so that the sampler is no more than 85% full when withdrawn from the oil.
2) b. by lowering a stoppered sampler to the level of the outlet, then opening the sampler and raising it at a uniform rate so that it is about 80% full when withdrawn from the oil.
3) c. by lowering a stoppered sampler to the mid point of the tank contents, then opening the sampler and raising and lowering it at a uniform rate until it is full
4) d. by lowering an unstoppered sampler to the mid point of the tank contents, then raising and lowering it at a uniform rate until it is full
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2. 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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3. 2.18 What is Net Standard Volume (NSV)?1) a. The total volume of all petroleum liquids, excluding sediment and water and free water, corrected to a standard temperature by the appropriate volume correction factor for the observed temperature and density
2) b. The total volume of all petroleum liquids, excluding sediment and water, but including free water, corrected to a standard temperature by the appropriate volume correction factor for the observed temperature and density
3) c. The total volume of all petroleum liquids and free water, excluding sediment and water, corrected to a standard temperature by the appropriate volume correction factor for the observed temperature and density
4) d. The total volume of all petroleum liquids and sediment and water and free water, corrected to a standard temperature by the appropriate volume correction factor for the observed temperature and density
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4. 2.27 What is the Reference Gauge Height of a tank?1) a. The distance from the tank top to the tank bottom
2) b. The distance from the ullage hatch to the datum plate
3) c. The distance from reference gauge point to the tank bottom or datum plate
4) d. The distance from tank bottom to the ullage hatch
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5. 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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