单项选择题

A.keep the bow directly in toward the beach，and tow the……

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

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单项选择题If you have to jump in the water when abandoning a vessel，your legs should be（）.

A.spread apart as far as possible
B.held as tightly against your chest as possible
C.in a kneeling position
D.extended straight down and crossed at the ankles

单项选择题If the coxswain of your lifeboat gives the command HOLD WATER you should（）.

A.complete the stroke，raise your oar slightly，swinging the oar slightly forward，and place it in the boat
B.lift the oar in a vertical position
C.complete the stroke and hold the oar out of the water
D.dip the blade of your oar into the water vertically and hold it perpendicular to the keel line

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Any vessel in need of carrying out deck washing must be（）by the department concerned beforehand.

A.requested
B.allowed
C.approved
D.inquired

单项选择题An obstruction on a helideck is any object that might present a hazard to the（）.

A.rotor blades and landing gear
B.unloading of passengers
C.loading of cargo
D.pilot's visibility