maison Essais en ligne Dry cargo MASTER / Ch-Officer Test about Containers Transportation During Heavy Weather v5.0
Test en ligne : Test about Containers Transportation During Heavy Weather v5.0
Добро пожаловать! Оцените уровень своих знаний с помощью стандартной системы оценки экипажа CES (Crew Evaluation System) по теме "Heavy Weather Conditions during Cargo Transportation" (сложные погодные условия при транспортировке контейнеров на судах). Данный тест поможет вам, как морскому специалисту, подготовиться к сдаче экзаменов, получению сертификата компетентности или аттестата.
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By 31 December 1997, which ships were required to carry an approved CSM, under SOLAS 74? Select all applicable answers:
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During heavy weather what (approximate) transverse force could be imparted to a five-tier stack of forty-foot containers?
18 tonnes.
48 tonnes.
50 tonnes.
52 tonnes.
During heavy weather, what could be the approximate induced transverse wind force acting on a five-tier stack of containers?
18 tonnes.
1,8 tonnes.
36 tonnes.
4,2 tonnes.
During pitching, when will pressure changes on the forward container stacks reach their maximum values?
When the bows are rising onto a wave crest.
When a wave crest is amidships.
When the bows reverse their direction of monitor.
When the bows fail into a wave through.
For a container stowed in a position equidistant from the roll and pitch axes of your ship, what would reduce the accelerations to one quarter?
Doubling the roll period.
Quartering the pitch period.
Halving the roll period.
Halving the pitch period.
How do the accelerations always affect a container lashing system?
By slackening the turnbuckles.
By inducing forces into the entire lashing system.
By setting up vibrations throughout the system.
By causing containers to slip on their base twistlocks.
How should twistlocks be greased? Select all applicable answers:
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How would you properly grease turnbuckles?
By frequently greasing the hooked ends.
By frequently greasing the spindles.
By first cleaning dirty or rusty spindle threads and then applying grease to them.
How would you properly grease twistlocks? Select all applicable answers:
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How would you properly maintain the container lashing equipment on board your ship? Select all applicable answers:
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How would you recognise the onset of parametric rolling?
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How would you recognise the possible onset of Parametric rolling? Select all applicable answers:
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If a ship were to meet head-on seas, what would the change in the ship’s direction of motion result in? Select all applicable answers:
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If you were on a large container ship with flared bows and a flat, wide stern experiencing seas in near-gale conditions, what action would you take to avoid the possible onset of Parametric rolling?
Head your ship into the seas.
Run with the seas from astern.
Reduce speed to the minimum revolutions to which the ship will respond, under the circumstances.
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.
If you were on a large container ship with flared bows and a wide, flat stern experiencing gale conditions, what action would you avoid taking? Select all applicable answers:
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In accordance with what should the lashing and securing of containers be carried out?
The stability booklet.
The CSM.
The manufacturers lashing equipment manual.
OSHA regulations.
In what sea condition will parametric rolling not be included?
In following seas.
In head seas.
In quartering seas.
In beam seas.
Once you have calculated the transverse forces acting on a particular container, what would you do with this information? Select all applicable answers:
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To what limits do lashing equipment manufacturers design their equipment?
To those imposed by Classification Societies.
To maximum roll amplitudes between 22 and 30 degrees.
To minimum standards laid down by leading manufacturers.
To IMO’s requirements.
Under OSHA regulations what item of container securing equipment is not feasible when using ordinary cranes? Select all applicable answers:
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Under OSHA regulations what inherent problems are associated with a container spreader suspended from a single point? Select all applicable answers:
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Under OSHA regulations, which of the following is a “positive container securing device”? Select all applicable answers:
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What action(s) would contribute to the prevention of lashing failure?
Leaving the lashing and securing of containers entirely to stevedores, because securing containers is part of their daily job.
Using portable and/or fixed items of securing equipment not specified in the Cargo Securing Manual (CSM).
Using wires to replace worn out lashing rods.
Mixing the container lashing systems on alternate container bays.
Being vigilant and constantly checking container lashings during cargo loading operations.
What action(s) would contribute to the prevention of lashing failure? Select all applicable answers:
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What are some of the basic causes for container stows to collapse? Select all applicable answers:
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What are some of the basic causes for container stows to collapse? Select all applicable answers:
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What are the advantages of securing containers to a lashing bridge? Select all applicable answers:
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What are the disadvantages of securing containers to a Lashing Bridge? Select all applicable answers:
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What are the limitations of CSMs? Select all applicable answers:
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What are the responsibilities of a ship owner in ensuring that containers can safely be carried on board?
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What causes longitudinal accelerations? Select all applicable answers:
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What causes vertical accelerations?
Only Heaving.
Only Heaving and Pitching.
Pitching, Rolling and Surging.
Heaving, Pitching and Rolling.
What causes, or contributes to, tipping? Select all applicable answers:
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What contributes to the safe carriage of containers? Select all applicable answers:
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What dangers are associated with attempting to steer out of following seas? Select all applicable answers:
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What does heaving result in? Select all applicable answers:
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What does the integrity of a container lashing system depend upon?
The weakest component of that system.
The extent to which lashings rods are tightened.
The strongest item of lashing equipment.
The number of Bridge Fittings securing the containers.
What information do loading computers provide us with? Select all applicable answers:
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What information is included in loading computers? Select all applicable answers:
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What is the most important factor to be considered when deciding the lashing system for a sea route during a particular season?
The number of containers carried on deck.
The number of container stacks exposed to wind forces.
The extent of longitudinal accelerations.
The extent of transverse accelerations.
What is tipping?
A force that tends to pull out or separate corner castings or container twistlocks.
Container stacks falling over during rolling.
Containers in the uppermost stacks being racked sideways, due to transverse accelerations.
Containers displaced in the uppermost stacks due to pitching.
What led to the United States Coast Guards proposal to include carriage requirements for cargo securing manuals under SOLAS 74?
Ship collisions occurring regularly, off the US coast.
Recommendations from the International Hazardous Goods Committee.
The overboard loss of containers, from a ship, containing arsenic trioxide.
Several losses of containers, overboard.
What produces longitudinal accelerations?
Pitching and slamming.
Pitching, slamming, surging and yawing.
Surging and yawing.
Pitching and surging.
What should be maintained in the file covering items of lashing gear? Select all applicable answers:
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What stability variations contribute to parametric rolling of large container ships as they encounter two waves during one roll cycle?
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What would ensure the safe usage of deck fittings? Select all applicable answers:
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What would ensure the safe usage of dovetail foundations? Select all applicable answers:
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What would help prevent container stows from collapsing?
Accepting last-minute containers presented for loading, upon instructions from charterers agents, regardless of their weights.
Mixing out-of-gauge containers, such as high-cubes, with standard units causing misalignment.
Using both, left and right-hand twistlocks.
Using sound items of securing equipment, whether fixed or portable.
What would you look for when inspecting bridge fittings? Select all applicable answers:
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What would you look for when inspecting deck sockets? Select all applicable answers:
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What would you look for when inspecting lashing plates? Select all applicable answers:
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What would you look for when inspecting lashing rods? Select all applicable answers:
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What would you look for when inspecting turnbuckles? Select all applicable answers:
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What would you look for when inspecting twistlocks? Select all applicable answers:
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What would you look for when inspecting “D” rings? Select all applicable answers:
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When do wind forces cause heeling moments on container ships? Select all applicable answers:
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When does a container experience a force of 100 % of its weight plus cargo?
When pitching, in rotational motion.
When rolling, in rotational motion.
When rolling and pitching.
When heaving, in linear motion.
When will a ship experience “Resonance”? Select all applicable answers:
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When will parametric rolling occur? Select all applicable answers:
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When will parametric rolling occur? Select all applicable answers:
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When will parametric rolling occur? Select all applicable answers:
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When will “Resonance” occur?
When a ship encounters two waves during one roll cycle, from beam seas.
When a ship encounters one wave during one roll cycle, from beam seas.
When a ship encounters bow seas.
When a ship encounters seas from its port and starboard quarters.
When would vertical accelerations reach their maximum values on the containers stowed in the forward and aft container bays?
When a ship is at its extreme pitch angle.
When a ship is at its extreme pitch and roll angles, simultaneously.
When a ship surges.
When a ship heaves.
When would you expect large roll amplitudes to occur? Select all applicable answers:
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Where are the statutory requirements for the carriage of CSMs found? Select all applicable answers:
In the ship’s stability booklet.
In the company’s standing instructions.
In chapters six and seven of SOLAS.
In chapter four and five of SOLAS.
Where would you expect to find carriage requirements for cargo securing manuals, in SOLAS 74/78? Select all applicable answers:
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Where would you find tools to assist in calculating wind pressure? Select all applicable answers:
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Where would you find tools to assist you with calculating wind forces? Select all applicable answers:
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Which of these motions has a marked effect on a ship’s stability, whilst also affecting container corner posts and the cargo securing system in general?
Rolling.
Pitching.
Yawing.
Heaving.
Who can approve a CSM? Select all applicable answers:
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Who was primarily responsible for proposing mandatory requirements for certain types and sizes of ships to carry a cargo securing manual?
The International Maritime Organization (IMO).
The International Hazardous Goods Committee.
The United States Coast Guard (USCG).
The Institute of International Container Lessors (IICL).
Why do acceleration forces differ somewhat from those shown in a ship’s CSM? Select all applicable answers:
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With respect of Classification Societies, what is the concern regarding container lashing equipment? Select all applicable answers:
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With respect to OSHA requirements when can stevedores work on top of containers? Select all applicable answers:
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With respect to container lashings, what could happen in heavy weather if the extreme pitch angle occurred simultaneously with heaving? Select all applicable answers:
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With respect to lashing bars and turnbuckles, which of the following statements is true? Select all applicable answers:
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With respect to twistlock springs, what would ensure their safe operation?
The spring, holding the twistlock cone in the “closed” position, should be resilent.
The spring, holding twistlock cone in a “closed” position, is resilient but loose.
Twistlock handles are slightly fractured.
Twistlock handles are missing.
With what does a ship’s angle of pitch vary? Select all applicable answers:
The spring, holding the twistlock cone in the “closed” position, should be resilent.
The spring, holding twistlock cone in a “closed” position, is resilient but loose.
Twistlock handles are slightly fractured.
Twistlock handles are missing.
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