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單項選擇題

Which of the listed characteristics can be applied to R- 12 vapor?（）

A.It is corrosive
B.It is odorless
C.It is visible as h blue fog
D.It has a distinctive taste

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單項選擇題

The percentage of impurities in a specific fuel oil sample is determined by （）.

A.settling in a fuel tank
B.testing in a laboratory centrifuge
C.burning in a calorimeter
D.testing in a closed cup

單項選擇題

If your vessel bums 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 18 knots?（）

A.1382 tons
B.1561 tons
C.1600 tons
D.1637 tons

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