正确答案: B

a settling tank

题目：In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.

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学习资料的答案和解析：

[单选题]总偏移是（）。

A或B

[单选题]舵杆上有（）条细小的纵向裂纹时可以钳工修磨。

2～3

[单选题]As for a diesel engine, lack of combustion air may be due to （）.

fouling turbine

[单选题]Before starting the engine the air bottle should be （）.

pumped up

[单选题]Either a low injection pressure or a leakage of piston rings is able to lead （）.

a high smoky exhaust

[单选题]It is well known that good lubrication will （） the bearings from becoming overheated.

prevent

[单选题]Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler, could result in （）

increased fuel consumption

[单选题]Diesel engines are considered safer than gasoline engines because（）.

the fuel used is less volatile