单项选择题

What is NOT used as a stern tube bearing，on a large vessel? （）

A.Wooden (lignum vitae) strips
B.Hard rubber
C.Resin bonded composition
D.Bronze bushings

点击查看答案

上一题目录下一题

相关考题

单项选择题

What best describes the structure from which Stratford Point Light is shown?（）

A.Brown conical tower with white horizontal band in center of light on black pier
B.Red conical tower on brown cylindrical pier
C.White octagonal house on brown cylindrical pier
D.White conical tower，with brown band midway of height

单项选择题

Upon underwater（）by divers，there are no apparent（）on the bottom plates of the said vessel.

A.detection，defects
B.defection，defects
C.defects，defection
D.defects，detection

单项选择题

To reduce the number of strakes at the bow，two strakes are tapered and joined at their ends by a single plate. This plate is known as a（）.

A.cover plate
B.joiner
C.lap strake
D.stealer plate