A.sand
B.soft soil
C.stiff clay
D.heterogeneous soil
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A.shear ram
B.blind ram
C.pipe ram
D.annular ram
A.articulated anchor
B.Flipper Delta anchor
C.Baldt anchor
D.Danforth anchor
A.fairlead
B.heaving line
C.stay
D.warp
A.prevent them from falling when the vessel rolls
B.protect personnel from electrical shock
C.increase their operating efficiency
D.prevent unauthorized personnel from operating them
A.actual depth of water
B.actual depth of water below keel
C.average depth from waterline to hard bottom
D.average depth of water to soft bottom
最新試題
The most common type of davit found on merchant vessels today is the（）.
The C02 flooding system is actuated by a sequence of steps which are（）.
The holding capability of an anchor is primarily determined by the（）.
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 purpose of a bilge well is to（）.
Each cylinder in a two stroke cycle engine experiences combustion（）.
Centrifugal pumps have what advantage(s) over reciprocating pumps?（）.
The boat is stowed on the davit rather than on a cradle with which type of davit?（）
Anchors are prevented from running out when secured by the（）.
In nautical terminology a dog is a（）.