2022海船船员考试题库船舶动力装置题库晋升职称在线题库(04月08日)

1. [单选题]低速柴油机的最低稳定转速不高于标定转速的（）%。

A. 15
B. 30
C. 40
D. 45

2. [单选题]吊缸发现燃烧室零件表面有水锈时，表明（）产生穿透性裂纹。

A. 活塞
B. 气缸
C. 喷油器
D. 气缸或活塞

3. [单选题]This used piston had been tested and approved as a spare part by the （） during last annual repair.

A. agent
B. shipchandler
C. surveyor
D. engineer

4. [单选题]When the fuel oil is burning in the combustion chamber, it （）.

A. gives up large amount of heat
B. gives off large amount of heat
C. gives up large amount of steam
D. gives off large amount of steam

5. [单选题]The replacement piping for diesel engine high pressure fuel systems must be the same length and diameter as the original piping to （）.

A. avoid unnecessary pints inventory
B. keep torsional vibration constant
C. use existing supports and braces
D. maintain specified injection characteristic

查看答案&解析 查看所有试题

本文链接：https://www.51bdks.net/show/r3q79.html