Home Online tests CBT Bulk Carrier MASTER / Ch-Officer Test about International Maritime Solid Bulk Cargoes Code (CBT)

Online testing: Test about International Maritime Solid Bulk Cargoes Code (CBT)

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Question 1 from 71

A bulk cargo may shift within the cargo hold and cause the vessel to list. Which one of the following circumstances is this most likely to happen under?

The cargo is very dry and the hold is cubically full.

The flow moisture point of the cargo is high.

The moisture content of the cargo is the same or higher than the flow moisture point of the cargo.

The transportable moisture limit is six parts per hundred.

A bulk cargo of iron ore is loaded with a high peak at the centre of the cargo space. What is the most likely result of this form of loading?

Excessive stress on tank top structure.

Damage to hatch covers.

No appreciable stress problems.

Self-heating of the cargo.

A bulk carrier has badly maintained hatch cover seals which allow seawater to leak into the cargo space in bad weather. Which one of the following is considered to be the main danger of this situation when considering a non-liquefying cargo?

The cargo space will fill with water and reserve buoyancy will be lost.

The cargo may self-heat.

The cargo will produce flammable gas.

The cargo will be commercially damaged.

A cargo is about to be loaded and the moisture content is found to be in excess of the transportable moisture limit (TML). Which one of the following actions should the Master take?

Accept the cargo as it is probably safe to carry.

Refuse to load this cargo consignment.

Load only part of the cargo.

A cargo is loaded that has a liquefaction problem and moisture content above the transportable moisture limit. Which one of the following effects on the cargo is the most likely result of this situation?

Flammable gases will be produced.

It will become solid.

It will shift in the cargo space.

It will self-heat.

A cargo of coal appears to be self-heating on voyage. Which one of the following actions should the ships Master take in such circumstances?

Continue on voyage.

Follow guidance in IMO Bulk Cargo Code and measure carbon monoxide levels.

Open hatch covers and spray large quantities of water onto the cargo.

Discharge cargo over side.

A cargo of crushed coal, particle size 1 mm and a flow moisture of 20 is to be loaded. The coal had a moisture content of 17 measured 12 days previously, but has lain uncovered on the quayside in heavy rain since. Which one of the following actions should the Master of the vessel take?

Load the cargo.

Refuse to load the cargo and sail.

Load only part of the cargo.

Request a new test certificate for the moisture content as it should not be more than 7 days old and then decided whether to load.

A number of deaths have occurred in cargo spaces that have been used for cargoes such as grain and steel scrap (swarf). Which one of following is thought to have been absorbed by the cargo, from the cargo space atmosphere, so causing these deaths?

Nitrogen.

Carbon dioxide.

Hydrogen.

Oxygen.

A vessel is to load 100 000 tonnes of coal with a stowage factor (SF) of 1,50 m3/t. Which one of the following will be the required volumetric cargo space to load this cargo, measuring in cubic metres, m3?

20 000 m3.

200 000 m3.

150 000 m3.

15 000 m3.

A vessel is to load 100 000 tonnes of iron ore with a stowage factor (SF) of 0,50 m3/t. Which one of the given options is the required stowage volume for this cargo?

40 000 m3.

80 000 m3.

50 000 m3.

76 000 m3.

A vessel is to load 20 000 tonnes of iron ore with a stowage factor (SF) of 0,30 m3/t. The vessel has four cargo holds each with a volume of 6 000 m3 and a maximum allowed loading of 7 000 tonnes in each hold. Which one of the following statements is correct in relation to the above?

All four holds will be completely filled with cargo.

Each cargo hold will be approximately 50 % full by volume.

Two holds will be empty and two holds will each be 75 % full by weight.

All four holds will each be approximately 25 % full by volume.

According to the BLU Code, which one of the following has the responsibility for the risk assessment and detailed planning of the cargo loading or unloading operation at a terminal?

The Master of the ship.

The loading Master of the terminal.

The local agent of the vessel.

Government authorities of the relevant port State.

According to the Basel Convention, toxic wastes may be loaded only after which THREE of the following steps have been taken?

The government of the country of destination has confirmed it is ready to accept the consignment for incineration or other disposal.

The government of the country of origin has been notified of the intended country of destination, and has received clearance from the country of destination.

A waste disposal document is made to accompany the consignment from origin to final destination.

The Master and crew have passed the drug and alcohol tests.

Answer

Cargoes are placed in either Group A, Group B or Group C with respect to the hazard they present. Which one of the following statements is correct in relation to these groups?

A cargo with a chemical hazard is a Group A cargo.

A cargo with neither a chemical nor a liquefaction risk is a Group C cargo.

A cargo with a liquefaction problem is a Group C cargo.

A cargo with no hazards is a Group A cargo.

In relation to the classes given in the IMSBC Code, is the following statement true or false? Two bulk cargoes, a Class 5.1 dangerous good and a Class 6.2, requiring a category 3 segregation, must have at least 3 metres separating them.

True.

False.

In relation to the groups given in the IMSBC Code, is the following statement true or false? Group C contains a list of materials which are neither liable to liquefy nor to possess chemical hazards.

True.

False.

In which one of the following would you normally find information about the maximum loading weight of each cargo hold?

On the ships fire plan.

In the ships loading manual and on the ships capacity plan.

In the ships SMS manual.

In which one of the following would you normally find the two common methods of determining the angle of repose?

In the IMSBC Code, Appendix 1.

In the IMSBC.

In the BLU Manual of the IMSBC Code supplements.

Is the following statement true or false? A bulk cargo with low angle of repose has a high likelihood of shifting.

True.

False.

Loading of certain cargoes, including grain and iron ore fines, may require approval from the government authorities of the port State. Emergencies with certain cargoes also require the government authorities to be informed. Where, within the IMSBC Code, can contact addresses of the relevant authorities be found?

In Sections 1 to 13.

In Appendix 1 along with details of each bulk cargo.

In the BLU Code for ships.

In the latest relevant circular included in the supplement to the IMSBC Code.

Select from the following, the phrase that most accurately completes the following statement: the highest segregation for incompatible cargoes carried in packaged form, along with bulk cargoes, is:

Away from.

Separated from.

Separated by a complete compartment or hold from.

Separated longitudinally by an intervening complete compartment or hold from.

Select from the options the phrase, which most accurately completes the following statement: the angle of repose of a cargo is:

An indicator that a cargo may go on fire.

An indicator that a cargo may become solid.

An indicator that the cargo may produce flammable gases.

The natural angle that the cargo pile makes with the horizontal when loaded.

Select from the options the phrase which most accurately completes the following statement: the danger associated with carbon monoxide gas is that it is:

Flammable but non-toxic.

Non-toxic.

Heavier than air.

Toxic and flammable.

Select from the phrases given in the options the one, which most accurately completes the following statement: a bulk carrier with a large metacentric height (GM) will have a:

Large angle of list.

Fast roll period and excessive racking stresses.

Slow roll period and no racking stresses.

Select the phrase which most accurately completes the following statement: the main reason for establishing the moisture content is to:

Ensure that the cargo spaces do not leak in bad weather.

Prevent the build-up of toxic gases on the voyage.

Reduce the risk of self-heating of the cargo.

Prevent the loading of a cargo that may liquefy on the voyage.

Table 2 of an IMO safety circular in the IMSBC Code supplement exempts vessels dedicated to certain cargoes from Group B from having a fixed gas extinguishing system. Select the two correct statements about these cargoes from the following:

Fixed gas extinguishing systems are ineffective against fire in such cargoes.

Fire is self-extinguishing with these cargoes, because of inherent moisture content.

An equivalent fire extinguishing system, other than fixed gas, must be provided for such cargoes.

Answer

Which condition of the vessel is illustrated in the displayed image?

Hog.

Sag.

Which of the following is the main reason why high-density cargoes should not be stowed to an excessive height?

The vessel will have an increased rate of turn.

The bulkhead may become overstressed and the tank top overloaded in part of the hold.

The hold will be filled up to high and the cargo hatch will not able to be closed.

The cargo space will not be filled.

Which one of the bulk cargo types given in the options is more likely to have a liquefaction risk?

Sand and small stones.

Heavy metal ores.

Grains such as maize.

Scrap steel.

Which one of the bulk cargoes given in the options is most likely to be subject to liquefaction?

Grains.

Steel.

Ore concentrates.

Which one of the following answers is the correct definition for the term “flow moisture point”?

This is the portion of a sample consisting of water, ice or other liquid expressed as a percentage of the total wet mass of that sample.

It is the angle between a horizontal plane and the cone slope of such material.

This is the percentage moisture content at which a flow state develops under the prescribed method of test.

Which one of the following answers is the correct definition for the term “stowage factor”?

It is the factor, which expresses the number of cubic metres which one tonne of material will occupy.

It is the factor, which expresses the number of square metres which one tonne of material will occupy.

It is the factor, which expresses the relation between liquid cargo and solid cargo.

Which one of the following answers is the correct definition for the term “transportable moisture content” (TML)?

This represents the maximum moisture content of the material, which is considered safe for carriage in ships, which are not specially designed for the purpose.

This is the factor, which expresses the number of square metres which one tonne of material will occupy.

It is the factor, which expresses the relation between liquid cargo and solid cargo.

Which one of the following conditions is likely to occur when a bulk carrier is heavily loaded in the mid-section and lightly loaded at the ends?

Hogged.

Sagged.

Unstressed.

Which one of the following does the acronym “MHB” stand for in relation to the IMSBC Code?

Maximum hazard in bulk.

Materials hazardous in bulk.

Minimum hazard in bulk.

Which one of the following groups of gases should the atmosphere of an enclosed space, for example a cargo hold, be checked for, before entry is permitted?

Oxygen, toxic gases and nitrogen.

Oxygen and carbon dioxide.

Toxic gases, oxygen and flammable gas.

Argon, nitrogen and flammable gas.

Which one of the following hazards may result from the improper weight distribution of solid bulk cargoes?

Structural damage.

Dangerous chemical reactions.

Production of methane gas.

Which one of the following identifies how a bulk cargo should generally be loaded in order to reduce the likelihood of the cargo shifting when the ship is rolling heavily in bad weather?

Stowed with a high peak at centre of hold.

Trimmed and levelled near to the horizontal.

Secured with timber.

Stowed against hold bulkheads.

Which one of the following identifies the action, that should be taken with bulk cargoes, that may be subject to liquefying?

They should never be loaded on a ship.

They should only be loaded and carried if the transposable moisture limit is less than 90 % of the flow moisture point.

They should be allowed to dry out completely before loading.

They may be carried without any restriction.

Which one of the following identifies the main function of the segregation table in the IMSBC Code?

It provides the correct density for each cargo.

It provides the correct TML.

It provides the spacing requirements for non-compatible cargoes.

Which one of the following identifies the main gases, that are likely to be produced by a coal cargo?

Oxygen and Methane.

Carbon monoxide and Methane.

Hydrogen, Oxygen and Carbon monoxide.

Which one of the following identifies the three categories of general hazards associated with shipment of solid bulk cargoes?

Damage, stability and vessel general condition.

Damage, stability and chemical reactions.

Stability, gas leaks and fire.

Which one of the following identifies what is recommended should be monitored on a bulk carrier, that is carrying a cargo of coal?

Temperatures, Carbon monoxide and Methane levels.

Oxygen levels only.

Carbon monoxide levels only.

Methane levels prior departure only.

Which one of the following is considered to be the main danger to a bulk carrier in relation to seawater leakage into a cargo space?

The cargo is more likely to liquefy.

The cargo is likely to be damaged commercially.

There is an increased risk of steelwork corrosion.

Which one of the following is the likely to outcome of a cargo hold bilge sounding pipe being damaged, within the cargo hold, during loading?

The cargo space will fill with water at sea.

The bilge space may fill with cargo and prevent the bilges being pumped out at sea.

The cargo will heat up on passage.

The cargo will emit gases.

Which one of the following is the main hazard that may result due to a solid bulk cargo shifting during carriage?

Structural damage.

Loss of stability during the voyage.

Production of methane gas.

Which one of the following is the main hazard that may result from a chemical reaction during carriage of some types of solid bulk cargo?

Structural damage.

Loss of stability.

Production of methane gas.

Which one of the following is the main reason that water should not be used to extinguish fire in the cargo hold while at sea?

It may cause damage to the cargo.

It may cause damage to the hull of the ship.

It may bring the moisture content of the cargo material to a flow state.

Which one of the following is the main reason why bulk cargo should be trimmed level, or nearly level?

To avoid oxygen depletion.

To avoid loading an excessive quantity of cargo.

To avoid the dangers associated with cargo shifting.

Which one of the following is the main reason why it is important to normally only ballast one or two tanks at a time?

To avoid pollution.

To maintain the correct trim.

To reduce free surface effect and so maintain the vessel in a stable condition.

Which one of the following is the main reason why samples and tests of a stockpile of the cargo must be taken within 7 days prior to loading?

To measure the correct moisture content.

To check if any insects are in the cargo.

To be able to demonstrate pureness of the cargo.

Which one of the following is the minimum oxygen content that is required before entry into any enclosed space, such as a cargo hold, should be allowed?

10 %.

21 %.

5 %.

30 %.

Which one of the following is the most likely result of moisture migration in a bulk cargo?

A flow state existing on the cargo’s surface.

Build-up of toxic gases.

Oxygen depletion.

Self-heating of the cargo.

Which one of the following most accurately describes when personnel may enter a cargo hold, that contains timber and forest products?

Whenever they want to; these products are without risk.

When the cargo hold has been ventilated for at least 30 minutes.

When it is established that the oxygen level is at the normal level and that no toxic gases are present.

Which one of the following possibilities does a high level of carbon monoxide (above 30 ppm) in a coal cargo indicate that the cargo is doing?

Cooling down.

Self-heating.

Starting to liquefy.

No significant changes.

Which one of the following procedures should be followed when a bulk cargo of coal is being carried at sea?

Normal deck safety procedures.

Deck area out of use to all crew.

Access to deck area only for safety inspections.

All hot work and smoking should be prohibited, otherwise normal deck procedures.

Which one of the following should a vessel carrying a coal cargo monitor very regularly?

Oxygen levels only.

Temperatures, carbon monoxide and methane levels.

Temperature and acidity levels.

Methane levels.

Which one of the following statements is correct in relation to high density cargoes?

They occupy a large amount of space in a cargo hold and so it is unlikely that the hold will be overstressed.

They occupy a small amount of space in a cargo space and it is possible to overload the hold.

They do not cause stress problems in cargo spaces.

They are very likely to shift in the cargo spaces.

Which one of the following statements is the most accurate with regard to actions to be carried out before entry into an enclosed space, such as cargo space, is made:

A risk assessment and permit to work must be completed.

No specific procedures need to be followed.

Log book entries only need to be made.

Informing the bridge and the engine room is the only precaution required.

Which one of the following statements is the most likely to be true, in relation to a cargo with a high angle of repose of 45°?

The cargo pile will be very unstable.

The cargo pile will liquefy quickly.

The cargo pile will be stable.

The cargo pile may produce gases.

Which one of the following statements is the most likely to be true, in relation to a cargo with a high angle of repose of 32°?

The cargo pile will be stable.

The cargo pile will be very high.

The cargo pile may easily shift.

The cargo pile will self-heat.

Which one of the following statements most accurately describes the term “moisture migration”?

The weight of the cargo.

The angle at which a cargo may start to shift.

The movement of moisture contained in materials by settling and consolidation of the material due to vibration and ships motion, which may result in some or all of the materials developing a flow state.

The amount of water in a cargo sample when a flow state may develop.

Which one of the following terms is the acronym “TML” used for in the IMSBC Code?

Transportable moisture limit.

Threshold maximum limit.

Transportation minimum level.

Which one of the following will be the likely result of a bulk carrier being loaded with a high-density cargo such as iron ore?

The vessel will have a low GM and a fast roll period.

The vessel will have a low GM and a slow roll period.

The vessel will have a high GM and fast roll period.

The vessel will have a high GM and slow roll period.

Which one of the individuals identified in the options is, by the definition given in the BLU Manual, effectively the Master of the ship while cargo is being transferred at a terminal?

The actual ships Master or ships Officer designated by the Master.

The loading Master assigned by the terminal to that vessel.

The Chief Officer of the vessel.

The cargo superintendent assigned by the ship owner to attend to the vessel.

Which one of the locations given in the options is the best for taking gas samples from the cargo spaces?

The bilges.

Sampling port on side of hatch coaming.

Bottom of hold.

The middle of the cargo stow.

Which three of the following are the IMSBC Code requirements from shore and terminal operators, regarding cargoes with high potential security implications?

They recognize cargoes that may have high security implications.

They ensure the confidentiality of all documentation and communication related to such cargoes.

They be trained, authorized and allocated specific responsibilities to deal with emergencies and specific security breaches.

No one should be allowed to enter or leave the terminal.

Answer

Which two of the following apply to a vessel carrying a coal cargo when at sea?

Normal work to be carried out on deck.

No hot work to be carried out and no smoking where gases from cargo holds may be present.

All work on deck to be stopped.

All access to deck prohibited.

Answer

You are to load a full cargo of substance X for which there is no mention of angle of repose in the cargo information form provided by the Shipper. Which appendix of the IMSBC Code will you consult, in addition to appendix 1, to confirm that substance X is cohesive when dry and may be loaded without the risk of dry-shift of the cargo?

Appendix 2.

Appendix 3.

Appendix 4.

You have just received orders to pick up a full load of POTASH, a cargo that you are not familiar with, from a nearby terminal. In which part of the IMSBC Code will you find a description of critical characteristics and hazards and precautions of handling this cargo, before detailed information is made available to you by your company or the terminal?

Section 2.

Appendix 1.

BLU Code.

Your vessel is to load a cargo of iron ore fines during rainy weather. Your ship-owners have asked that you witness testing for moisture content and transportable moisture limit of the consignment prior to loading the cargo since the on-board test with can will be insufficient. Where in the IMSBC Code will you find the correct procedure for the flow table test for moisture content?

Section 1 to 13.

Appendix 1.

Appendix 2.

Тест проверяет знания по Кодексу Международной морской перевозки навалочных грузов (IMSBC), который регулирует безопасную перевозку таких грузов.

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