A.one-half the SWL of the main towing hawser
B.three-fourths the SWL of the main towing hawser
C.that of the main towing hawser
D.twice that of the main towing hawser
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A.limit switches
B.emergency disconnect switch
C.governor brake
D.position of the counterweight on the brake handle
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
A.DANGER，DO NOT TOUCH
B.DANGER，BOAT MAY DROP
C.DANGER，LEVER RELEASES BOAT
D.DANGER，LEVER DROPS BOAT
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
A.along the turn of the bilge
B.along each side of the keel
C.near the top of the gunwale
D.at the bow and at the stern
最新試題
Symptoms of heat stroke are（）.
In order for combustion to occur inside a piping system such as a vapor collection header in a marine emmission control system，there must be（）.
The bottom row of plating next to the keel of a lifeboat is known as the（）.
On an oceangoing vessel，for each person a lifeboat (without desalting kits) is certified to carry，the boat must be supplied with（）.
The object of plugging holes below the waterline on a ship should be to（）.
Seawater may be used for drinking（）.
If help has not arrived in 10-12 hours after you abandon a vessel in a survival craft，you should（）.
The minimum concentration of a vapor in air which can form an explosive mixture is called the（）.
The MOST important element in administering CPR is（）.
The grab rail of a metal lifeboat is normally located（）.