The catenary （).A.acts as a reserve length of towing hawser when the tug applies more powe

第1题

Catenary as applied to tow lines denotes the ______.A.Dip of the lineB.Stretch of the line

Catenary as applied to tow lines denotes the ______.

A.Dip of the line

B.Stretch of the line

C.Strain on the line

D.Length of the line

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第2题

The holding power of an anchor increases when the ().

A.amount of chain lying along the bottom increases

B.length of the catenary is reduced

C.mooring line tension is increased

D.amount of chain lying along the bottom decreases

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第3题

The major components which determine the length of catenary in a deployed anchor cable are

water depth，cable tension，and ______.

A.environmental forces

B.bottom conditions

C.cable weight

D.water density

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第4题

The catenary in a towline is ().

A.a short bridle

B.the downward curvature of the hawser

C.another name for a pelican hook

D.used to hold it amidships

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第5题

Cable tension for catenary calculations is taken at the ______.A.chain lockerB.fairleadC.a

Cable tension for catenary calculations is taken at the ______.

A.chain locker

B.fairlead

C.anchor

D.contact point of chain with seabed

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第6题

The biggest problem you generally encounter while towing a single tow astern is （).A.The c

The biggest problem you generally encounter while towing a single tow astern is ().

A.The catenary dragging on the bottom

B.Swamping of the tow

C.The tow tending to dive

D.Yaw

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第7题

The catenary in a towline is ______.A.a short bridleB.the downward curvature of the hawser

The catenary in a towline is ______.

A.a short bridle

B.the downward curvature of the hawser

C.another name for a pelican hook

D.used to hold it amidships

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第8题

In a combination chain and wire rope mooring system, the anchor chain is deployed at the a

nchor 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

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第9题

The disadvantage of using a heaving line to pass a towline is that ______.A.it increases t

The disadvantage of using a heaving line to pass a towline is that ______.

A.it increases the likelihood of collision between the towing vessel and the disabled vessel

B.recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towline

C.the monkey fist may injure someone

D.it may reduce the catenary and increase yawing

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