舵系固定件的中心线与船舶基线垂直，垂直度偏差不大于（）。

【名词&注释】

可靠性(reliability)、业务水平(professional level)、管理人员、船舶动力装置(marine power plant)、中心线(center line)

[单选题]舵系固定件的中心线^{(center line)}与船舶基线垂直，垂直度偏差不大于（）。

A. 0.5mm/m
B. 1.0mm/m
C. 1.5mm/m
D. 2.0mm/m

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学习资料：

[单选题]船舶动力装置可靠性好的设计，主要应考虑到（）。Ⅰ.选用可靠度高的设备和零部件；Ⅱ.分析部件的不同连接方式；Ⅲ.提高船舶管理人员的业务水平

A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ+Ⅱ
D. Ⅰ+Ⅱ+Ⅲ

[单选题]曲轴轴颈表面的腐蚀凹坑、锈斑，主要是滑油中含有（）。

A. 水分
B. 酸
C. 碱
D. 水分和酸

[单选题]An electrically driven automatically operating auxiliary blower is provided for slow speed and （） of a low speed diesel engine.

A. manoeuvring operations
B. bad combustion
C. cooling
D. mooring trial

[单选题]Remote control means that the system is being controlled by the operator who is situated （） from the system.

A. automatic
B. local
C. remote
D. manual

[单选题]The complete assembly of bedplate, A-frames and cylinder block is held together by （） to form a rigid structure.

A. tap-bolts
B. jack-bolts
C. tie rods
D. fitted rod

[单选题]The injector pump is operated by a cam which drives （） up and down.

A. the needle valve
B. the plunger
C. the piston
D. the cylinder

[单选题]The pressurized air is usually cooled to increase the charge air （）.

A. viscosity
B. density
C. velocity
D. electricity

[单选题]Which of the following is a factor of fuel oil almost having nothing to do with the formation of combustion products?（）

A. setting point
B. ash
C. sulfur content
D. carbon residue

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