螺旋桨有四个桨叶。 （）

单项选择题从船艏贯穿至船艉的甲板叫主甲板。（）

A. The deck from bow to stern is called the main deck.
B. The deck from stern to bow is called the tweendeck.
C. The deck from bow to stern is called the upper deck.
D. The deck from stern to bow is called the lower deck.

单项选择题底漆用于出白金属表面， 防止其生锈。（）

A. Topside paint is applied to a bare surface to give protective against rust.
B. Undercoat is applied to a bare surface to give protection against rust.
C. Primer coat is applied to a bare surface to give protection against rust.
D. Topcoat is applied to a bare surface to give protection against rust.

单项选择题用敲锈锤敲去厚锈。（）

A. Heavy rust is removed with a chipping hammer.
B. Loose paint and scale is removed with a scraper.
C. Heavy rust is removed with a scraper.
D. Loose paint and scale are removed with a chipping hammer.

单项选择题刮刀用来铲去起泡的油漆和锈皮。（）

A. Loose paint and scale is removed with a scraper.
B. Heavy rust is removed with a scraper.
C. Loose paint and scale is removed with a chipping hammer.
D. Heavy rust is removed with a chipping hammer.

单项选择题首楼甲板涂上两度红丹漆和干舷漆。（）

A. Apply two coats of red lead primer and topside paint to the forecastle deck.
B. Apply two coats of red lead primer and boottopping paint to the forecastle deck.
C. Apply two coats of topside paint and red lead primer to the poop deck.
D. Apply two coats of red lead primer and topside paint to the poop deck.