1. 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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2. 2.30 What is ullage?1) a. The depth of the empty space above the liquid in a tank
2) b. The height of the free water in a tank
3) c. The length of an ullage tape
4) d. The depth of the liquid in a tank
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3. 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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4. 2.23 What is the total volume of all material in a tank at the observed temperature called?1) a. Total Calculated Volume (TCV)
2) b. Total Observed Volume (TOV)
3) c. On Board Quantity (OBQ)
4) d. Gross Observed Volume (GOV)
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5. 2.22 What is a floating roof tank?1) a. A tank in which the roof floats freely on the surface of the liquid contents at all levels.
2) b. A tank in which the roof floats freely on the surface of the liquid contents except at low levels when the weight of the roof is supported by its legs.
3) c. A tank in which the roof, supported by guide wires, can be adjusted to the required height for safe filling of the tank
4) d. Answers a., b. and c. are all wrong
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