Where do fatigue failures of wire rope mooring lines usually occur ________.
A.In the middle part of the line length
B.Near the socketed end fitting adjacent to the anchor
C.At the point where the line touches the bottom
D.At the place the anchor buoy is attached to the line
第1题:
A mooring line is described as being 6x24, 1-3/4 inch wire rope. What do the above numbers refer to ? ______.
A.Strands, yarns, circumference
B.Strands, wires, diameter
C.Wires, yarns, diameter
D.Strands, circumference, wires
第2题:
Chafing gear(防摩擦装置) is used to______.
A.anchor the boat
B.pick up heavy loads
C.protect fiber rope from abrasion
D.strengthen mooring lines
第3题:
In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to ______.
A.increase fatigue life of the system
B.reduce the time to retrieve the line
C.increase the holding power
D.reduce the catenary
第4题:
及时调整缆绳。()
第5题:
three wire rope clamps
an eye splice with four or five tucks
a thimble fastened with four or five tucks
a wire rope socket attached with zinc
第6题:
With the Cargo Gear Register on the ship
In the Official Log
At the Coast Guard Marine Safety Office with the vessel's inspection records
At the central records center of the agency testing the cargo gear
第7题:
anchor the boat
pick up heavy loads
protect fiber rope from abrasion
strengthen mooring lines
第8题:
Six by seven galvanized wire rope
Six by twenty-four improved plow steel wire rope
Six by thirty-seven preformed fiber-core wire rope
Six by nineteen regular-lay filler wire rope
第9题:
a bulge in the wire where the strain occurred
a decrease in diameter where the strain occurred
a kink in the wire where the strain occurred
no visible effects of an overstrain
第10题:
Factor of safety
Number of wires per strand
Number of strands per wire rope
Number of wires in the core
第11题:
more slack in the mooring lines
a strain on the mooring lines
chafing gear on the mooring lines
grease on the mooring lines
第12题:
any wire rope used for mooring
a fire-warp
a mooring line running diagonally to the keel
a mooring line perpendicular to the keel
第13题:
Chafing gear should be placed______.
A.at all wearing points of mooring lines
B.around running rigging
C.on wire rope only forces
D.at the bitter ends of all standing rigging
第14题:
Given the same water depth and line tension, the holding power of a 19 pound / foot wire rope mooring system in comparison to the holding power of a 90 pound / foot chain mooring system will be ______.
A.weaker
B.equal
C.greater
D.Indeterminable
第15题:
Ropes can be divided into three types: ().
第16题:
A bowline knot
A long splice
An overhand knot with a wire rope clip
Wire rope clips with a thimble eye
第17题:
Strands,yarns,circumference
Strands,wires,diameter
Wires,yarns,diameter
Strands,circumference,wires
第18题:
The lines may jam and then jump off the gypsyhead
If there is sudden strain on the line,the man tending the line may be pulled into the gypsyhead
The lines' surging may cause the vessel to surge
The heat generated may cause the lines to temporarily fuse to the gypsyhead
第19题:
at all wearing points of mooring lines
at the bitter ends of all standing rigging
around running rigging
on wire rope only
第20题:
increase fatigue life of the system
reduce the time to retrieve the line
increase the holding power
reduce the catenary
第21题:
bow mooring/stern line
forward spring/after spring
forward breast rope/forward spring
slip rope/stern line
第22题:
Fiber core rope offers greater strength
Fiber core rope offers greater flexibility
Fiber core rope can be used at higher operating temperatures
Fiber core rope is the only type authorized for cargo runners
第23题:
weaker
equal
greater
indeterminable