A.annular blowout preventer
B.annulus
C.accumulator
D.automatic choke
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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
A.Aye Aye Sir
B.Right 15 degrees rudder
C.Rudder is right 15 degrees
D.No reply is necessary,just carry out the order
A.heavy-walled drill pipe
B.tool joint
C.down hole tool
D.drill collar
A.main brace
B.tow span
C.jockey bar
D.None of the above
A.one sidelight
B.one sidelight and a masthead light
C.one sidelight and two masthead lights
D.both sidelights of a vessel and her masthead light(s)
A.vernier
B.psychrometer
C.hygrometer
D.stadimeter
A.information or regulatory buoy that has lateral significance
B.buoy that is off-station and is marked to warn mariners of its wrong position
C.dual purpose marking used where the ICW and other waterways coincide
D.buoy that was set in error and will be replaced with a red nun buoy
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A fire pump may be used for other purposes if().
An inert gas system on a tanker should be used to().
A large metallic device,mounted directly in the piping (usually located at the dock near the point where the vapor hose is attached),designed to prevent the passage of a rapidly moving flame through the piping is called a().
Entries should be made in a Ro-Ro vessel’s cargo-securing device record book for().
A head-on situation at night is one in which you see dead ahead a vessel showing().
A flooded leg on a liftboat would adversely affect the vessel’s stability underway by().
Cargo transfer operations on a tank vessel need NOT be stopped when().
A helmsman receives the command “Right 15 degrees rudder.”The helmsman’s IMMEDIATE reply should be().
A large valve,usually installed above the ram preventers,that forms a seal in the annular space between the pipe and wellbore or,if no pipe is present,on the wellbore itself is called the().
Permanent magnetism is found in().