A.swivel
B.cathead spool
C.drawworks
D.stand pipe
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A.at each frame
B.amidships
C.one-third the distance from the bow
D.one-third the distance from the stern
A.greater at the bow and stern
B.reduced at the bow and stern
C.uniform over the length of the vessel
D.uniform over the length of the vessel，with the exception of the machinery spaces，where it is reduced due to increased stresses
A.Safe working load
B.Ship's working lift
C.Starboard wing lift
D.Stress，weight，load
A.crow bar
B.device to force a water tight door against the frame
C.heavy steel beam
D.wedge
A.that the fuel valve is open
B.if the air supply system is open
C.if the water sprinkler system is open
D.if the limit switch is on
最新試題
The function of the bypass valve on the self-contained breathing apparatus is to（）.
Each cylinder in a two stroke cycle engine experiences combustion（）.
The portable radio apparatus means（）.
The holding capability of an anchor is primarily determined by the（）.
An example of a modern anchor which has a stock is a(n)（）.
The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?（）
The C02 flooding system is actuated by a sequence of steps which are（）.
In ship operations，hoisting and lowering pipe in and out of the drilled hole is the main function of the（）.
An LWT anchor often has difficulty tripping in（）.
Centrifugal pumps have what advantage(s) over reciprocating pumps?（）.