Тест по Heavy Weather Damage, Container Vessel (CES v5.0)

Correct answer:

All new container ships.; All ships of 500 gt and upwards engaged in the carriage of cargoes other than solid and liquid bulk cargoes.

Your answer is correct:

18 tonnes.

Your answer is correct:

18 tonnes.

Your answer is correct:

When the bows reverse their direction of monitor.

Your answer is correct:

Doubling the roll period.

Your answer is correct:

By inducing forces into the entire lashing system.

Correct answer:

By injecting grease into the shaft by inserting the shaft nozzle between the cone and housing.; By injecting grease to the wire handle by inserting the nozzle into the housing through the handle guide.

Your answer is correct:

By first cleaning dirty or rusty spindle threads and then applying grease to them.

Your answer is correct:

By injecting grease into the shaft by a specially designed shaft nozzle.; By injecting grease to the wire handling by inserting the shaft handle into the housing through the handle guide.

Your answer is correct:

By ensuring that the amount of lashing equipment was sufficient to properly secure the maximum number of containers to be carried.; By ensuring that adequate spares and replacements are carried.

Your answer is correct:

When your ship starts to encounter two waves during one roll cycle.; When your ship is pitched by the bow, at maximum roll to one side.; When upright, your ship is pitched down by the stern.

Your answer is correct:

The ship experiences seas from astern.; The ship starts developing large roll angles within a very short time.; The ship rolls once for every two waves encountered.

Your answer is correct:

Forces being transmitted to the containers.; Tensile and compression forces being imposed on the lashing rods.

Your answer is correct:

Maintain sea speed and steer a course preferably with the seas approaching from close to the beam, so that roll and pitch motions do not synchronise.

Your answer is correct:

Heading your ship into the seas.; Heaving to.; Reducing speed to the minimum to which your ship will respond, under the circumstances.

Your answer is correct:

The CSM.

Your answer is correct:

In beam seas.

Your answer is correct:

Compare the information with the permissible transverse forces of the containers Classification Society.; Compare the information with the permissible forces given by the loading computer.

Your answer is correct:

To those imposed by Classification Societies.

Your answer is correct:

Semi-automatic twistlocks.; Liftlocks.

Your answer is correct:

It precludes the use of semi-automatic twistlocks due to the suspension not being vertical at the four lifting points.; It does not allow the spreader to be lifted vertically at the four corner castings.; Containers cannot be lifted off their stacks in a vertical or relatively stable manner.

Your answer is correct:

A liftlock.; On-deck cell guides.; A safety stacker.

Your answer is correct:

Being vigilant and constantly checking container lashings during cargo loading operations.

Your answer is correct:

Checking container lashings during cargo operations.; Inspecting base twistlocks regularly for wear-down and/or cracks.

Your answer is correct:

Incorrect application of the “wind” lashings.; Carrying heavier over lighter containers.; The use of left and right-hand twistlocks leading to the mistaken notion that the containers are “locked”.

Your answer is correct:

Inadequate or incorrect securing.; Container stacks being too heavy and too high, overall.; Wind forces being ignored when deciding the method and system of lashing.; Repeated shock loads in a seaway.

Your answer is correct:

The lashings typically extend to the bottom of the third tier of containers.; The lashings resist the overturning of containers.; Corner-post tension and compression reactions are reduced.; Container stacks will generally have higher permissible weights.

Your answer is correct:

The lashing bridge becomes less effective as the longitudinal distance between it and the container increases.; The lashing bridge becomes less effective when stowing forty-foot containers in bays arranged for alternative forty-five foot or forty-eight foot containers.

Your answer is correct:

They do not cover all permutations and eventualities to which a ship may be exposed.; They provide stowage and securing instructions for pre-approved load conditions only.; They do not cover all information provided by the loading computer.; They are often not updated in respect of new items or models of container lashing gear supplied to a vessel.

Your answer is correct:

The owner must provide and maintain adequate supplies of container securing equipment.; The owner must ensure that the items supplied are of the required strength.; The owner must provide a comprehensive stowage and securing manual that is understood by the ship’s staff.

Your answer is correct:

The rate of change of velocity.; A ship meeting head seas.; A ship influenced by stern seas.

Your answer is correct:

Heaving, Pitching and Rolling.

Your answer is correct:

Heavy containers stowed over lighter ones.; Incorrect declarations of weights by shippers and/or load-planners.; Ship’s officer unable to precisely calculate the forces acting on a particular stow.

Your answer is correct:

Using twistlocks whenever possible.; Never exceeding stack weight(s).

Your answer is correct:

Large course alterations are required.; Course alterations may result in rolling.; Large roll angles may quickly develop, setting up forces in the container lashing system.

Your answer is correct:

Vertical accelerations that act along the corner posts of containers.; Possible piercing of tank tops or hatch pontoons by the lowest tiers of containers.

Your answer is correct:

The weakest component of that system.

Your answer is correct:

Examples of the forces that can be expected in various stowage positions on board.; Facilities for automatic monitoring of individual stack weights.; Alarms when stack weight exceeds the designed maximum stack weight.; Heeling moments caused by wind loads.

Your answer is correct:

Automatic monitoring of total individual stack weights.; Angles of roll and corresponding metacentric heights (GM) within specifications.; Alarms when stack weight exceeds the designed maximum stack weight.; Wind-load heeling moments.

Your answer is correct:

The extent of transverse accelerations.

Your answer is correct:

A force that tends to pull out or separate corner castings or container twistlocks.

Your answer is correct:

The overboard loss of containers, from a ship, containing arsenic trioxide.

Your answer is correct:

Pitching, slamming, surging and yawing.

Your answer is correct:

Approval certificates for portable securing equipment on board.; An up to date inventory of container lashing equipment on board.; Appropriate remarks in respect of defective items.; New items supplied to the vessel, or requested for.

Your answer is correct:

Increased water plane areas with a wave through amidships.; Decreased stability as a wave crest passes amidships.

Your answer is correct:

That the main shafts on “D” rings are not wasted.; That welded seams along the main shafts on “D” rings are not cracked.; That key holes of deck foundations are not elongated, through wastage or diminution.

Your answer is correct:

That the chamfered edges are not, in any way, curled or distorted.; That a twistlock or sliding cone can easily slide into the foundation.

Your answer is correct:

Using sound items of securing equipment, whether fixed or portable.

Your answer is correct:

Proper lubrication of the item.; Seizing.; Buckling.

Your answer is correct:

Signs of pitting.; Clogging of drain holes.; Cracking in welded seams.

Your answer is correct:

Pitting.; Cracks in welded seams.; Plate distortion.; Reduction of plate thickness.

Your answer is correct:

Signs of pitting.; Straightness of rods.

Your answer is correct:

Signs of pitting.; Seizing or cracking.; Bending.

Your answer is correct:

The bases of twistlocks are not cracked.; “Sacrificial exchangeable wear plates”, where fitted, have not reached the predefined level of wear and tear.; Freedom of cone movement when operated by the handle.

Your answer is correct:

Cracks in welded seams.; Deterioration of the retaining sleeve.; Wastage of the main shaft.

Your answer is correct:

When there are high container stacks on deck.; When on-deck containers present a favourable profile to the wind.

Your answer is correct:

When heaving, in linear motion.

Your answer is correct:

When it encounters one wave during one roll cycle.; When it encounters beam seas.

Your answer is correct:

When a ship is meeting seas fine on the port bow.; When successive wavelengths are of the order between 0,8 and twice the ship’s length.; When wave heights exceed a critical level.

Your answer is correct:

When a ship is running with the seas from astern.; When roll and pitch motions occur in phase with each other.; When a ship’s low speed results in large roll amplitudes.

Your answer is correct:

When a ship is running with the seas fine on the quarter.; When roll and pitch motions are in phase.; When a ship’s natural period of roll is equal to approximately twice the wave encounter period.

Your answer is correct:

When a ship encounters one wave during one roll cycle, from beam seas.

Your answer is correct:

When a ship is at its extreme pitch angle.

Your answer is correct:

When the ship is experiencing beam seas.; When the ship is running before the seas.; When the ship is experiencing head seas.

Your answer is correct:

In chapters six and seven of SOLAS.

Your answer is correct:

Chapter VI.; Chapter VII.

Your answer is correct:

In the CSM.; In the loading computer program.

Correct answer:

In the CSM.; From programs in the loading computer.

Your answer is correct:

Heaving.

Your answer is correct:

The Flag State.; The current Classification Society, on behalf of the Flag State.

Your answer is correct:

The United States Coast Guard (USCG).

Your answer is correct:

Because acceleration values in the CSM are calculated prior to a ship entering sea service.; Because acceleration values in the CSM are “as anticipated”.

Your answer is correct:

Despite their respective rules and regulations, the industry still lacks a standard approach to the securing of containers aboard ships.; Rules applied by one Classification Society differ from another.; The risk level associated with container stowage in accordance with the various class rules is inconsistent.

Your answer is correct:

When stevedores wear appropriate safety gear.; When a stevedore standing on deck, is trying to unlock a container stowed in a high tier by means of a long lashing pole.; When bridge clamps are to be installed.

Your answer is correct:

Twistlock failure could occur.; Turnbuckles could fail.

Your answer is correct:

Lloyd’s Register (LR), Germanischer Lloyd (GL), Det Norske Veritas (DnV) and Bureau Veritas (BV) allow a SWL of 245 kN.; American Bureau of Shipping (ABS) allows a SWL of 293 kN.

Your answer is correct:

The spring, holding the twistlock cone in the “closed” position, should be resilent.

Your answer is correct:

The spring, holding the twistlock cone in the “closed” position, should be resilent.