They are used to steady a lifeboat when lowered
They are normally attached to the davit span
They are needed only on radial davits
They are used to clear the puddings
第1题：
Which of the following conditions is true concerning a flammable liquid with a concentration above the upper explosive limit?
A.The mixture is too lean to burn
B.The mixture is too rich to burn
C.The vapor is about to explode
D.Conditions are perfect for combustion
第2题：
Concerning the use of a stabilogauge，what of the following cannot be found ________．
A.Mean draft
B.Trim
C.Displacement
D.Deadweight
第3题：
A language change is inevitable
B language change is abrupt
C language change is universal
D language change is extensive
第4题：
第5题：
Which statement about two lines spliced together is TRUE ________．
A.Splicing is used to increase the circumference of each line
B.Splicing two lines together is stronger than knotting two lines together
C.Splicing is used to increase the overall strength of the line
D.Splicing is used to prevent rotting of the lines bitter end
第6题：
Frapping lines ______．
A.secure the lifeboat in the davits when in the stowed position
B.bring the lifeboat close alongside the rail in the embarkation position
C.give the occupants a safety line when the boat is being lowered from the embarkation level
D.reduce the swinging of the lifeboat at the embarkation level
第7题：
Which statement concerning GPS is TRUE ________．
A.It cannot be used in all parts of the world
B.There are 12 functioning GPS satellites at present
C.It may be suspended without warning
D.Two position lines are used to give a 2D fix
第8题：
A.Compilation fails.
B.The code compiles and the output is 2.
C.If lines 16, 17 and 18 were removed, compilation would fail.
D.If lines 24, 25 and 26 were removed, compilation would fail.
E.If lines 16, 17 and 18 were removed, the code would compile and the output would be 2.
F.If lines 24, 25 and 26 were removed, the code would compile and the output would be 1.
第9题：
Frapping lines are fitted to lifeboat davits to ______.
A.secure the lifeboat in the davits when in the stowed position
B.bring the life boat close along the rail in the embarkation position
C.give the occupants a safety line when the boat is being lowered from the embarkation level
D.reduce the swinging of the lifeboat at the embarkation level
第10题：