更多"If two mooring lines are to be plac"的相关试题:
[单项选择]Two mooring lines may be placed on the same bollard and either one cast off first if（）.
A. the eye of the second line is dipped
B. the mooring lines are doubled
C. the bollard has two horns
D. one of the lines is a breast line
[单项选择]In the constant-tension mooring, the mooring lines holding the ship to the pier will maintain a constant tension even with changes in tide or ship’s draft, （）.
A. without the necessity of manually adjusting the lines
B. without the necessity of automatically adjusting the lines
C. with the necessity of manually adjusting the lines
D. with the un-necessity of automatically adjusting the lines
[单项选择]Mooring lines both（）were let go.
A. for and aft
B. from and aft
C. fore and aft
D. all and aft
[单项选择]Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
A. Crossing the spring lines
B. Slacking all forward running lines while keeping all after running lines taut
C. Doubling up on spring or breast lines
D. Slacking bow and stern lines
[单项选择]Mooring lines should be turned end-for-end occasionally. This is because（）.
A. a line is weakened by constantly pulling on it in one direction
B. normal wear on the line is thus distributed to different areas
C. it prevents the line from kinking or unlaying
D. it prevents permanent misalignment of the line's internal strands
[单项选择]The knot used to join two lines or two large hawsers for towing is called a（）.
A. square knot
B. carrick bend
C. sheet bend
D. bowline
[单项选择]The best method for tying two lines of the same size together is by using a（）.
A. becket bend
B. two bowlines
C. single carrick bend
D. square knot
[单项选择]Mooring with two bow anchors has which major advantage over anchoring with one bow anchor? （）.
A. The vessel will not reverse direction in a tidal current
B. The radius of the vessel's swing will be shortened
C. A mooring approach may be made from any direction
D. The vessel will not swing with a change in wind
[单项选择]Mooring（）are placed on both banks of the Suez Canal about 200m apart．
A. bollards
B. ballasts
C. bands
D. benefits
[单项选择]Installing tandem anchors on the same mooring line is referred to as（）.
A. doubling
B. pretensioning
C. piggybacking
D. paralleling
[单项选择]In a storm，the windward lines of a ship’s mooring system provide（）.
A. a positive righting moment
B. an increase in KM
C. a negative restoring force
D. a positive restoring force
[单项选择]In a storm，the leeward lines of a ship’s mooring system will（）.
A. pull the unit in the same direction that the weather is pushing it
B. pull the unit in the opposite direction that the weather is pushing it
C. tend to keep the unit on its original location over the well head
D. affect the unit's draft and inclination as maximum mooring tensions are reached
[单项选择]The two main types of load cells used in mooring tension gauges are（）.
A. distortion and compression
B. hydraulic and mechanical
C. magnetic and applied torque
D. frictionless and hydraulic
[单项选择]The joint formed when two steel plates are placed end-to-end is called a（）.
A. bevel
B. seam
C. butt
D. bond
[单项选择]The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
A. Overhead power lines
B. Louisiana-Mississippi ferry crossings
C. Two railroad trestles
D. Two submerged oil pipelines
[单项选择]The knot used to join two lines of different diameter is a（）.
A. square knot
B. carrick bend
C. becket bend
D. sheepshank
[单项选择]When two lines are spliced together,（）.
A. The size of the lines at the splice decreases
B. They are stronger than if knotted together
C. The overall strength of each line is increased
D. The bitter ends will resist rotting
[单项选择]A Chinese stopper (two lines) will hold best when you（）.
A. fasten the bitter ends to the mooring line with half hitches
B. twist the ends together and hold them in the direction of the pull
C. twist the ends together and hold them in the direction opposite to the pull
D. twist the ends together and hold them at right angles to the mooring line
