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[主观题]

An upright vessel has negative GM．GM becomes positive at the angle of loll because the ___

___．

A.Free surface effects are reduced due to pocketing

B.KG is reduced as the vessel seeks the angle of loll

C.Effective beam is increased causing BM to increase

D.Underwater volume of the hull is increased

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更多“An upright vessel has negative…”相关的问题

第1题

An unstable upright equilibrium position on a vessel means that the metacenter is ______.A

An unstable upright equilibrium position on a vessel means that the metacenter is ______.

A.lower than the center of gravity

B.at the same height as the center of gravity

C.higher than the baseline

D.on the longitudinal centerline

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第2题

PumpoutN（）

A．keep vessel a floating

B．refloat vessel listing to starboard

C．make vessel ll-right

D．bring vessel upright

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第3题

An unstable upright equilibrium position on a vessel means that the mrtacenter is（）.

A. lower than the center of gravity

B. at the same height as the center of gravity

C. heigher than the baseline

D. on the longitudinal centerline

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第4题

Pump out No. 2 port ballast tank to ______.A.keep vessel afloatingB.refloat vessel listing

Pump out No. 2 port ballast tank to ______.

A.keep vessel afloating

B.refloat vessel listing to starboard

C.make vessel all-right

D.bring vessel upright

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第5题

For an upright vessel, draft is the vertical distance between the keel and the ______.A.wa

For an upright vessel, draft is the vertical distance between the keel and the ______.

A.waterline

B.freeboard deck

C.plimsoll mark

D.amidships section

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第6题

If the cause of a sudden severe list is negative initial stability，counterflooding into empty tanks may（）

A．increase the righting moment

B．cause an increase in the righting arm

C．bring the vessel to an upright equilibrium position

D．cause the vessel to flop to a greater angle

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第7题

An upright vessel has negative G

A.GM becomes positive at the angle of loll because the().

B.free surface effects are reduced due to pocketing

C.KG is reduced as the vessel seeks the angle of loll

D.effective beam is increased causing BM to increase

E.underwater volume of the hull is increased

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第8题

An unstable upright equilibrium position on a vessel means that the mrtacenter is（）

A．lower than the center of gravity

B．at the same height as the center of gravity

C．heigher than the baseline

D．on the longitudinal centerline

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第9题

In tanker trade，the signing by master the documents relating to the use of jetties and berths（）the shipowners thereby to pay for any damage caused to the jetties or berths by the vessel’s using them

A.ties

B.binds

C.does

D.ha

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第10题

For 20 months the wrecked Costa Concordia has been lying on its side near the coast of Gig

lio, a small Italian island. But on Tuesday, as part of the largest salvage(打捞) operation ever conducted, the large ship was finally moved to the upright position. The next step is for the vessel to be removed from the area entirely. The Costa Concordia is twice the weight of the Titanic. The ship itself didnt budge(稍微移动) for the first three hours of the operation, Sergio Girotto told reporters. He and other engineers worked for 19 hours before Concordia was declared completely upright. The Costa Concordia capsized on January 13, 2012, after its captain, Francesco Schettino, brought the ship too close to the shore. The ship hit coastal rocks, which caused serious damage and allowed water to pour in.(76)Most of the 4,200 people on board made it to land safely, but more than 30 people were killed in the disaster. Two people remain missing. The Concordias captain is currently on trial for causing a shipwreck and abandoning his ship. The operation to right the ship is called par buckling. While par buckling is a standard operation to right capsized ships, it has never before been used on such a large ship. (77)Workers had been waiting for favorable weather conditions to undertake the operation.On Monday, authorities gave the final go-ahead. The process was expected to take no more than 12 hours. But problems with the large system of steel chains caused delays. Engineers worked through the night using cables and metal water tanks to roll the ship onto special platforms. The Concordia is expected to be pulled away from Giglio in the spring of 2014 and turned into scrap metal (废金属).The ships owner, Costa Cruises, will pay for the recovery, which has already cost more than $ 800 million.

Which of the following is the best tide for the passage？

A．Ship Safety Management.

B．Shipwrecks; an Environmental Threat.

C．The Costa Concordia Disaster.

D．The Costa Concordia Salvage.

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