单项选择题
A spark arrestor（）.
A.keeps sparks from falling into an open tank
B.secures covers on ullage openings
C.prevents sparks from getting out of an enging's exhaust system
D.grounds static electicity
点击查看答案&解析
相关考题
-
单项选择题
A stay is（）.
A.standing rigging
B.a downhaul
C.a halyard
D.a jib -
单项选择题
A survival craft being used to pick up a person who has fallen overboard from a vessel ahould approach the person（）.
A.at a high rate of speed
B.under oars
C.against the wind
D.with the wind -
单项选择题
A twin screw craft being used to pick up a person who has fallen overboard from a vessel should approach if you（）.
A.reverse port engine, apply right rudder
B.reverse port engine,rudder amidships
C.reverse starboard engine, apply right rudder
D.revers starboard engine, rudder amidships
