船舶动力装置题库2022考试试题下载(2T)

1. [单选题]在制造技术和维护管理技术落后于船舶的技术发展时，船舶磨合期甚至可能延长至（）。

A. 半年左右
B. 6—12个月
C. 1—1.5年
D. 1—2年

2. [单选题]If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the （）.

A. cylinder compression pressure may not be high enough
B. cylinder compression temperature may be too high
C. fuel oil injection pressure may not be high enough
D. scavenge and purge process is incomplete

3. [单选题]What is the function of the thrust bearing?（）

A. Prevents lateral movement of the slow speed gear
B. Transmits propeller thrust to the hull
C. Keeps spring bearings in line
D. Prevents main reduction gear axial movement

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