【名词&注释】
集装箱船(container ship)、续航力(endurance)、螺旋桨鸣音
[单选题]为了满足船舶续航力的要求,船上必须设有()。
A. 足够大的油、水舱柜
B. 足够大的主机功率
C. 足够大的载货舱容
D. A+B
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学习资料:
[单选题]一般()采用双轴系的推进系统。Ⅰ.油船;Ⅱ.拖船;Ⅲ.客船;Ⅳ.军舰;Ⅴ.集装箱船。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ
C. Ⅰ+Ⅱ+Ⅲ
D. Ⅲ+Ⅳ
[单选题]消除螺旋桨鸣音的办法是将随边()制成抗鸣边缘,从而改变涡流引起的振动频率。
A. 0.4R~0.8R处
B. 0.4R处以外
C. 0.4R~0.7R处
D. 0.4R处
[单选题]The crankshaft is of the semi built type, with the journal () the forged or cast steel crank throws.
A. shrunk into
B. expanded into
C. extended into
D. designated into
[单选题]In the combustion chamber, the part whose surface is exposed to the highest temperature is the ().
A. cylinder liner
B. cylinder cover
C. piston
D. exhaust valve
[单选题]The most common contaminate of governor hydraulic fluid is ().
A. moisture
B. dirt
C. acid
D. air
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