A.When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may result
B.When going directly from full ahead to full astern，there is complete steering control
C.When the vessel has headway and the propeller is in neutral，there is no effect on rudder control
D.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
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A.annular blowout preventer
B.annulus
C.accumulator
D.automatic choke
A.flame arrestor
B.flame screen
C.detonation arrestor
D.detonation blocker
A.slipway
B.graving dock
C.ground warp
D.caisson dock
A.a 2-second blast every 20 seconds
B.a 4-second blast every 20 seconds
C.an 8-second blast every 30 seconds
D.a 10-second blast every 30 seconds
A.turn off all lights that interfere with the navigation lights
B.turn on all available working lights on deck
C.ring the bell rapidly for five seconds once a minute
D.display two black diamonds in a vertical line during the day
最新試題
After sending a message describing the symptoms of an ill crew member，you receive a message containing the code MRL. This means（）.
A green buoy has a yellow triangle on it. This is a(n)（）.
A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a（）.
A safe fuel system must（）.
A fishing vessel displaying the lights shown is（）.
All ships（）suspected infectious disease on board should radio information to Port Health Officer.
A head-on situation at night is one in which you see dead ahead a vessel showing（）.
A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by（）.
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound（）.
It is not necessary to declare（）in MARITIME HEALTH DECLARATION.