海船船员

Chafing gear ______.A.reduces and prevents corrosion of standing riggingB.prevents corrosion of running riggingC.reduces and prevents wear caused by the rubbing of one object against anotherD.protects the body against extreme cold

题目

Chafing gear ______.

A.reduces and prevents corrosion of standing rigging

B.prevents corrosion of running rigging

C.reduces and prevents wear caused by the rubbing of one object against another

D.protects the body against extreme cold

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相似问题和答案

第1题:

Which two benefits are provided by using a hierarchical addressing network addressing scheme? ()

A.reduces routing table entries

B.auto-negotiation of media rates

C.efficient utilization of MAC addresses

D.dedicated communications between devices

E.ease of management and troubleshooting


参考答案:A, E

第2题:

A storm is forecast for the area where your vessel is moored. For its safety you should put ______.

A.more slack in the mooring lines

B.a strain on the mooring lines

C.chafing gear on the mooring lines

D.grease on the mooring lines


正确答案:C

第3题:

That man ( ) at the bus stop for the last half hour.--- Shall I tell him that the last bus ( )

A.has stood … has already gone

B.has been standing… has already been

C.is standing… has already gone

D.has been standing…has already gone


答案:C

第4题:

Gear box


正确答案:齿轮箱

第5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


正确答案:C
防磨装置减少和防止由于别的物体摸彩引起的磨损。

第6题:

Wear occurring at the tips of the reduction gear teeth is usually the result of ______.

A.surface fatigue

B.fretting corrosion

C.heavy overloading

D.gear misalignment


正确答案:D

第7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


正确答案:A
防(摩)擦装置应被放在所有系泊缆绳的摩擦点上。

第8题:

One of the most common causes of reduction gear failure is gear wear caused by scoring as a result of

A.surface fatigue of the gears

B.an inadequate lube oil film

C.plastic flow of the gears

D.fretting corrosion from water


正确答案:B

第9题:

高温腐蚀(钒腐蚀和热腐蚀)(high temperature corrosion)


正确答案: 高温腐蚀是普通 氧化加上其他污染物反应的综合结果, 通常高温腐蚀有钒腐蚀和热腐蚀(高温硫腐蚀) 两种。 燃料中的钒或硫同钠等在燃烧后形成的化合物, 附着于透平叶片等高温金属表 面, 使金属产生腐蚀的现象。

第10题:

CORROSION INHIBITOR的中文意思是什么?


正确答案:防腐剂。

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