A.used to measure the speed of wind
B.in which the pressure of air is measured
C.that tells which dirction a storm is coming from
D.used to measure the height of waves
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A.a boat bucket
B.an air tank filled with water
C.an oar and canvas weighted down
D.All of the above
A.Carbon dioxide
B.Dry chemical
C.Foam
D.All of the above
A.fairlead
B.heaving line
C.stay
D.warp
A.the floating-free method only
B.breaking the weak link on the painter
C.throwing the entire container overboard and then pulling an the operating
D.removing the securing straps
A.pulling a cord
B.cutting the wire restraining bands
C.removing the rudder packing strip
D.throwing the entire container overboard
最新試題
Before any loading takes place any signs of the previous cargo should do（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
According to the relevant regulation, lifeboat should be powered by（）.
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
Which of the following is not a form of precipitation?（）
Full details of all lights and fog signals are shown on（）.
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
When steering by autopilot,how often should the steering be checked?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
What is it called when it is possible to ignite the vapour above the oil?（）