A.blind flange
B.pivot coupling
C.quick-release coupling
D.spectacle flange
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A.increase the lifting capacity
B.increase the lifting radius
C.protect the slings
D.protect the upper part of a load
A.bar securing a cargo port
B.centerline vertical bulkhead
C.deep beam
D.spanner stay
A.pressed
B.slack
C.inertial
D.elemental
A.Bagged cargo
B.Bulk grain
C.Bulk rice
D.Refrigerated goods
A.increase reserve buoyancy
B.decrease the righting moment
C.decrease KG
D.increase KM
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（）is where the crew eat their meals.
The circulation around a low pressure center in the Northern Hemisphere is（）.
Berthing means bringing a vessel to her berth until（）.
The helm command PORT TWENTY means（）.
ECDIS must be able to perform all of the following EXCEPT（）.
Full details of all lights and fog signals are shown on（）.
In the Northern hemisphere northerly winds may cause temperature（）.
The mean draft of a ship is the draft（）.
What is it called when it is possible to ignite the vapour above the oil?（）
It is dangerous for vessels without the operational radar（）the estuary.