单项选择题

The maximum speed of lowering for a lifeboat on gravity davits is controlled by the（）.

A.limit switches
B.emergency disconnect switch
C.governor brake
D.position of the counterweight on the brake handle

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单项选择题

The Master or person in charge of a ship shall insure that each deck from which lifeboats are launched is（）.

A.surfaced with a nonskid texture
B.roped off to prevent unnecessary access
C.kept clear of any obstructions that would interfere with launching
D.posted with a list of persons assigned to the lifeboat

单项选择题

The lifeboat releasing gear lever should be marked with the words（）.

A.DANGER，DO NOT TOUCH
B.DANGER，BOAT MAY DROP
C.DANGER，LEVER RELEASES BOAT
D.DANGER，LEVER DROPS BOAT

单项选择题

The length of the steering oar in a lifeboat is（）.

A.shorter than the rowing oars
B.the same length as the rowing oars
C.longer than the rowing oars
D.unrelated to the length of the rowing oars