【名词&注释】
螺旋桨(propeller)、灵活性(flexibility)、增压器(turbocharger)、密封性(sealing)、非金属(nonmetal)、中国船级社(china classification society)、填料函式
[单选题]填料函式艉轴密封装置要求换新填料安装时应()。Ⅰ.材质不变;Ⅱ.每圈长度恰好对接;Ⅲ.各道填料接口错开;Ⅳ.填料的圈数不变;Ⅴ.必须全部更换。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ+Ⅴ
C. Ⅲ+Ⅳ+Ⅴ
D. Ⅱ+Ⅲ+Ⅳ
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学习资料:
[单选题]船上吊缸检修后,装复活塞运动部件时,正确的操作是()。
A. 装配过程中,随时检查零件的灵活性和密封性
B. 应按规定的预紧顺序和预紧力安装气缸盖螺栓
C. 金属垫片和非金属垫均可继续使用
D. 只需对连杆螺栓进行磁粉探伤,不必检测其长度
[单选题]中国船级社(china classification society)要求营运船舶的曲轴臂距差()时,应立即停航修理。
A. <0.125S
B. (0.125~0.25)S
C. >0.25S
D. >0.30S
[单选题]测量螺旋桨螺距时采用的量具是()。
A. 螺距规
B. 直尺
C. 塞尺
D. 桥规
[单选题]拆装增压器时对于转子上的零件及其位置不可以随意更换和改动,以免影响()。Ⅰ.对中性;Ⅱ.运转;Ⅲ.平衡精度;Ⅳ.振动;Ⅴ.转子变形。
A. Ⅲ+Ⅳ+Ⅴ
B. Ⅰ+Ⅲ
C. Ⅰ+Ⅱ+Ⅴ
D. Ⅰ+Ⅲ+Ⅳ
[单选题]() the engines, the diesel engine is() used engine on board.
A. Between;more commonly
B. Among;the most commonly
C. Between;not more commonly
D. Among;not the most commonly
[单选题]A main bearing consists of two shells which are secured by means of studs and ().
A. tie rods
B. through bolts
C. lead wires
D. bearing ca
[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 position of the piston parts in relation to each other is secured by means of () and a dowel pin in the crown.
A. bosses
B. through bolts
C. machine-turned recesses
D. long stud
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