航海英语海上救助单项选择题每日一练(2019.01.08)

单项选择题
A capsized small sail vessel is best righted when what part of the vessel is downwind?（）
A.Stern
B.Bow
C.Centerboard
D.Mast
单项选择题
If you must land on a beach with an oar-propelled lifeboat through a heavy surf，the recommended method is to（）.
A.keep the bow directly in toward the beach，and tow the sea anchor off the stern
B.ride in on the back of a large breaker
C.keep the bow into the seas with the sea anchor out over the bow，and row to meet the breaking waves
D.head directly into the beach by staying between the crests of the waves
单项选择题
AN ILLNESS PREFERABLY OF AN INFECTIOUS NATURE SEIZING MORE THAN TWO PERSONS ON BOARD AT THE SAME TIME defines（）.
A.Disease of Crew
B.Crew illness
C.Group illness
D.Mass disease
单项选择题
For a ship not on an international voyage，an approved substitute for an impulse projected rocket-type line throwing appliance is a（）.
A.spring loaded line thrower
B.hand thrown buoyant line
C.shoulder-type line throwing gun
D.heaving line
单项选择题
On a ship，a fire pump may be used for other purposes if（）.
A.the other services are run off a reducing station with a pressure gage
B.a separate fire pump is available for use on the fire main
C.all other services are operated by a manifold near the pump
D.All of the above