【名词&注释】
环氧树脂(epoxy resin)、相互关系(relationship)、注意事项(points for attention)、螺旋桨直径(diameter of a propeller)
[单选题]为了提高系统的可靠性,除选用优质廉价的部件外,还要力求使系统()。Ⅰ.所用部件的种类尽量少;Ⅱ.所用部件的数量尽量少;Ⅲ.部仵之间的相互关系尽量简单
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅲ
C. Ⅱ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ
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学习资料:
[单选题]今测得某船主机第2缸的曲轴臂距值(单位:1/100mm)如下图所示,则计算得()是正确答案。
A. Δ⊥=-2/Δ-=-2
B. Δ⊥=2/Δ-=2
C. Δ⊥=-4/Δ-=-2
D. Δ⊥=4/Δ-=2
[单选题]更换艉轴承填料时的注意事项中不包括()。
A. A.填料长度适当,不许搭接或过短
B. B.各道填料的接缝要错开
C. C.压盖安装后应前后移动灵活、无卡阻
D. D.按要求依次上紧压盖螺母
[单选题]小型船舶的螺旋桨直径(diameter of a propeller)D<1.5m时,螺旋桨和艉轴允许采用()方式连接。
A. 有键环氧树脂
B. 无键环氧树脂
C. 机械连接
D. 油压套合连接
[单选题]A level gauge for a tank is to ().
A. give the pressure
B. give the contents
C. give the shape of the tank
D. give the accuracy level
[单选题]The term () refers to one complete sequence of operations required to produce power in an engine.
A. diesel engine
B. stroke
C. cycle
D. compression ratio
[单选题]Fuel injection systems meter fuel, atomize fuel, and ().
A. create turbulence in the combustion chamber
B. aid in completing cylinder scavenging
C. inject fuel at the proper time
D. minimize fuel penetration into the cylinder
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