A.radial
B.sheath-screw
C.gravity
D.quadrantal
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A.shape of the anchor
B.stowage of the anchor on board
C.anchor's ability to dig in
D.size of the vessel and its draft
A.control the pressure of the oxygen as it enters the body
B.allow the wearer to manually give himself oxygen
C.release excess heat which would otherwise cause the bottle to explode
D.allow exhaled gases to pass outside the bottle
A.boss
B.knuckle
C.skeg
D.strut
A.bilge water may enter the exhaust pipe
B.entry of air may cause vapor lock
C.carbon monoxide may enter the interior of the vessel
D.the joint gaskets may be blown
A.string
B.stand
C.joint
D.standpipe
最新試題
The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.
The exhaust pipe must be gas tight throughout its entire length otherwise（）.
Limit switches are used on which davits?（）
The C02 flooding system is actuated by a sequence of steps which are（）.
All electrical appliances aboard a vessel should be grounded to（）.
The most common type of davit found on merchant vessels today is the（）.
Each cylinder in a two stroke cycle engine experiences combustion（）.
The bypass valve on a self-contained breathing device should be opened if（）.
The boat is stowed on the davit rather than on a cradle with which type of davit?（）
The purpose of a bilge well is to（）.