Each ship shall carry on board a shop security plan approved by .A.the chief engineer offi

燃油系统中集油柜的作用不包括（）。

A.作为量油柜，测定主机耗油量

B.主机换油操作时，起缓冲作用

C.沉淀净化燃油

D.驱除燃油回油中的气体

十字头式柴油机活塞裙上安装承磨环的主要目的是（）。

A.磨合初期防止拉缸

B.防止缸套与活塞接触

C.在运行中起导向作用

D.减轻振动，防止撞击

A cast steel strong back is fitted in way of the combustion space to help absorb _____.

A.flame temperature

B.fuel oil

C.air movement

D.gas forces

往复泵的自吸能力与________无关。

A.缸内余隙容积

B.泵的容积效率

C.吸入管密封性能

D.泵的作用次数

High lube oil temperatures developing in a diesel engine can result from_________.

A.high oil pressure

B.excessive bearing end play

C.plugged oil control rings

D.engine overload

Under ISM Code the ship to which it applies has to carry ____.

A.an International Ship Security Certificate

B.an International Oil Pollution Prevention Certificate

C.a Safety Management Certificate

D.an International Ballast Water Management Certificate

会影响斜盘泵排量的是________。

A.Ⅰ、Ⅱ、Ⅲ、Ⅴ

B.Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ

C.Ⅰ、Ⅲ、Ⅳ、Ⅴ

D.Ⅰ、Ⅲ、Ⅳ、Ⅴ、Ⅶ

One of function of diesel engine lubricating oil is to _________.

A.induce carbon formation on cylinder walls

B.improve fuel penetration in the combustion space

C.form. a friction reducing film between mating surfaces

D.lubricate the fuel injection

A defective injector nozzle in a propulsion diesel engine can cause________.

A.engine power losses

B.smoking due to unburned fuel

C.high exhaust temperature readings

D.all of the above

连杆式液压马达要求有适当的回油背压主要是为了防止________。

A.空气进系统

B.出现"爬行现象"

C.连杆两端的球承座、抱环受力过大

D.产生液压冲击