1. 1.25 What is the formula to calculate API gravity at 60°F when relative density is known?1) a. (141.5 ÷ Relative Density @ Observed Temperature) - 131.5
2) b. (141.5 + Relative Density @ 60/60F) -131.5
3) c. (131.5 ÷ Relative Density @ 60/60F) - 141.5
4) d. (141.5 ÷ Relative Density @ 60/60F) - 131.5
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2. 1.15 A tank has a measured gauge height of 15.000 m [45] and is filled to a 9.000 m [30] innage with no free water. To take a lower spot sample, to what point in the tank must you lower the sampler?1) a. 3.000 m [10] below the reference gauge point
2) b. 5.000 m [15] above the tank bottom
3) c. 12.000 m [30] below the reference gauge point
4) d. 13.500 m [40] below the reference gauge point
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3. 1.19 The term specific gravity has been replaced by what term?1) a. API gravity
2) b. Density in vacuum
3) c. Relative density
4) d. Density in air
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4. 1.21 When the density [API] at observed temperature of a crude oil is known, what table would you use to find the density at 15°C [API at 60°F]?1) a. Table 53A [Table 5A]
2) b. Table 53B [Table 5B]
3) c. Table 24A [Table 23A]
4) d. Table 24B [Table 23B]
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5. 1.32 It is necessary to know the Vessel Experience Factor of a ship before you can accurately determine whether there has been a loss or gain of cargo in transit.1) a. True
2) b. False
3)
4)
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ต้องการเฉลยข้อสอบ โปรดเข้าระบบสมาชิก
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