单项选择题X 纠错
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
你可能喜欢
单项选择题
A.annular blowout preventer
B.annulus
C.accumulator
D.automatic choke
单项选择题
A.flame arrestor
B.flame screen
C.detonation arrestor
D.detonation blocker
单项选择题
A.slipway
B.graving dock
C.ground warp
D.caisson dock
单项选择题
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
单项选择题
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
单项选择题
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
单项选择题
A.heavy-walled drill pipe
B.tool joint
C.down hole tool
D.drill collar
单项选择题
A.main brace
B.tow span
C.jockey bar
D.None of the above
单项选择题
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)
单项选择题
A.vernier
B.psychrometer
C.hygrometer
D.stadimeter