A 6x12,two-inch wire rope has().
- A12 strands and a two-inch diameter
- B12 strands and a two-inch circumference
- C6 strands and a two-inch diameter
- D6 strands and a two-inch circumference
A 6x12,two-inch wire rope has().
1、Temporary seizings on wire rope are ma
Temporary seizings on wire rope are made with().AmarlineBsail twineCtapeDwire
2、A circuit that has one wire in contact
A circuit that has one wire in contact with the hull of the ship is a()Aseries circuitBgrounded circuitCshort circuitDclosed circuit
3、On your vessel,a wire rope for the car
On your vessel,a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom,what safety factor should you use?()AThreeBFiveCSixDSeve
4、Which will cause a wire rope to fail()
Which will cause a wire rope to fail().AUsing a medium graphite grease as a lubricantBOperating a winch too slowCUsing a sheave with an undersized throatDA sheave diameter of 24 times the wire's diameter
5、When cutting wire rope,seizings are pu
When cutting wire rope,seizings are put on each side of the cut.The seizings prevent the wire from unlaying and also().AMaintain the original...
6、In a combination chain and wire rope m
In a combination chain and wire rope mooring system,the anchor chain is deployed at the anchor end of the line to().Aincrease fatigue life of the systemBreduce the time to retrieve the lineCincrease the holding powerDreduce the catenary