Dangerous, Hazardous and Harmful Cargoes Flashcards
You have been carrying a liquid with flammable limits of 1% to 7% mixture with air. If your instructions say than men shall not enter the tank if the vapor concentration is over 15% of the LEL, what is the maximum allowable percentage of vapors for men
0.15%
What is the maximum oxygen content below which flaming combustion will no longer occur?
15%
Ambient air, which you normally breathe, contains what percent of oxygen?
21%
You are tending the lifeline of a person who has entered a compartment wearing a breathing apparatus. How many tugs of the lifeline mean “Are you all right”?
1
You are tending the lifeline of a man who entered a compartment using a Breathing apparatus. How many tugs on the lifeline indicate the man should advance?
2
How many grades of petroleum products are combustible/
2
You are in a tank wearing a breathing apparatus and you desire to return topside. How many tugs of the lifeline mean “Take up slack”?
3
You are tending the lifeline of a man who entered a tank using a breathing apparatus. How many tugs on the lifeline indicate that the man should come out immediately?
4
Dangerous goods are divided into _____ classification?
9
The angle of heel due to the shift of grain shall not be greater than ____degrees except that an administration giving authorization in accordance with Regulation 10 of SOLAS 1992 require a lesser angle of heel if it considers that experience shows this to be necessary.
12
The problem involved in the carriage of bulk cargoes was recognized by the delegates of the _____ International Conference for the Safety of Life at Sea (SOLAS).
1960
A vessel’s light displacement is 12,000 tons. It’s heavy displacement is 28,000 tons. When fully loaded it carries 200 tons of fuel and 100 tons of water and stores. What is the cargo carrying capacity in tons?
15700
A tank hold 130 tonnes when full of fresh water. Find how many tonnes of oil of relative density 0.75 it will hold, allowing 5% of the volume of the tank for expansion in the oil.
92.6 tonnes
Oil of relative density 0.75 is run into a tank measuring 6m x 4m x 8 m until the ullage is 2 meters. Calculate the number of tonnes of oil tank then contains.
108 tonnes
A tank measuring 9m X 5m X 4m is being filled with oil of relative density 0.95. Find how many tonnes of oil in the tank when the ullage is 2 meters.
85.5 tonnes
A tank when full will hold 120 tonnes of salt water. Find how many tonnes of oil relative density 0.80 it will hold, allowing 4% of the volume of the tank for expansion.
89.9 tonnes
A tank holds 120 tonnes when full of fresh water. Find how many tonnes of oil of relative density 0.84 it will hold.
100.8 tonnes
Oil of relative density 0.85 is run itno a tank measuring 8m x 5m x 8m until the ullage is 3 meters. Calculate the number of tonnes of oil the tanks then contains.
170 tonnes
A tank when full will hold 110 tonnes of salt water. Find how many tonnes of oil relative density 0.75 it will hold, allowing 5% of the volume of the tank for expansion.
76.5 tonnes
A tank holds 120 tonnes when full of fresh water. Find how many tonne of oil of relative density 0.84 it will hold, allowing 2% of the volume of the tank for expnsion in the oil.
98.8 tonnes
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by the single subsidiary risk label “1”?
“away from”
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by the single subsidiary risk label “2”?
“separated from”
The flash point of vinyl chloride is ____.
-108°F
A tank when full will hold 130 tonnes of salt water. Find how many tonnes of oil relative density 0.909 it will hold, allowing 1% of the volume of the tank for expansion.
114.1 tonnes
A tank measuring 8m X 6m X 7m is being filled with oil of relative density 0.9. Find how many tonnes of oil in the tank when the ullage is 3 meters.
172.8 tonnes
A tank when full will hold 100 tonnes of salt water. Find how many tonnes of oil relative density 0.85 it will hold, allowing 3% of the volume of the tank for expansion.
80.4 tonnes
Combustible liquid is defined as any liquid having a flash point above _______.
80°F
Oil of relative density 0.80 is run into a tank measuring 6m x 4m x 7m until the ullage is 2 meters. Calculate the number of tonnes of oil the tank then contains.
96 tonnes
Oil of relative density 0.75 is run into a tank measuring 6m x 4m x 8m until the ullage is 2.5 meters. Calculate the number of tonnes of oil the tank then contains.
99 tonnes
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by segregation “separated longitudinally by an intervening complete compartment or hold from”?
A minimum horizontal separation of 24 meters when stowed on deck
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by segregation “away from”?
A minimum horizontal separation of 3 meters projected vertically is obtained
Barium cyanide solid is classed as “poison B” and cannot be stowed near:
Acids
Another name for anhydrous ammonia is ____.
Ammonia gas
Flammable liquid having a Reid vapor pressure of 8 ½ pounds or less and a flash point of 80°F or below is grade ____.
C
What entry on a dangerous cargo manifest concerning the classification of a cargo is correct?
Class 8
The chemical formula for hydrogen sulphide is ___.
H2S
A group of organic compounds consisting exclusively of the elements carbon and hydrogen is:
Hydrocarbons
Which of the following is the highest hydrocarbon gas?
Methane
In LNG carriage, RGB means:
return gas blower
A vehicle with wheels and fitted with a tank or tanks intended for the transport of gasses, liquids or solids by both road or sea modes.
road tank vehicle
You are arriving in Edinburgh to load 1000 cases of Scotch whiskey. The cases are packed with 12 bottles of one liter each to a case. The flash point of the scotch is 220°F. Which of the following is TRUE?
The Scotch is not required to be shipped under the requirements of the hazardous materials regulations
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by the single subsidiary risk label “3”?
“separated by a complete compartment or hold”
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by the single subsidiary risk label “4”?
“separated longitudinally by an intervening complete compartment or hold from”
At the start of loading operations, drafts fwd = 6.30 mtrs, aft = 6.70 mtrs. After loading, a mean draft of 7.25 mtrs was observed. If TPC is 22, how much cargo was loaded?
1,650 tons
The displacement of your ship is 6,400 tons when floating at density 1025. Your ship has to proceed to an anchorage where the density of water is 1008. Find how much weight of cargo to be discharged if your vessel is to remain at salt water draft.
106 tons
A tank when full will hold 130 tonnes of salt water. Find how many tonnes of oil relative density 0.909 it will hold.
115.3 tonnes
A tank holds 150 tonnes when full of fresh water. Find how many tonnes of oil of relative density 0.80 it will hold, allowing 3% of the volume of the tank for expansion in the oil.
116.4 tonnes
What is the quick freezing temperature of non-living organic cargoes?
-20 degs C
At the commencement of loading at 0800H, draft fwd was 4.30 mtrs, aft 4.50 mtrs. The stevedores worked continuously till 1800H, at which time drafts were read as follows: fwd 4.65 mtrs at 4.75 mtrs. If the TPC at this draft is 25, what is the rate of load
75 tons per hour
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by segregation “separated by a complete compartment or hold from”?
a minimum horizontal separation of 12 meters when stowed on deck
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by segregation “separated from”?
a minimum horizontal separation of 6 meters when stowed on deck
What produces the most dangerous vapors?
Anhydrous ammonia
Which of the following produces the MOST dangerous vapors?
Anhydrous ammonia
Another name for coal naphtha that would appear on a dangerous cargo manifest is:
benzene
The chemical formula for methane is:
CH4
A petroleum liquid has a flash point of 135°F. This liquid is classed as a grade ____.
D flammable liquid
What is the meaning of ERS system on board liquefied gas carriers?
emergency release system
The designations A,B,C,D, and E grades of cargo refer to the _____.
Flash point range and Reid vapor pressure index of petroleum products
What is the proper first aid for the LPG in the eyes?
flash the eye with plenty of water
The only cargo whose vapour may be utilized as fuel is _____.
Methane
The simplest hydrocarbons which is the main constituent of natural is:
methane
Combustible liquids are divided into how many classes?
Two
A “Heterogeneous cargo” refer to: I.A bulk carrier loaded with steel II. A bulk carrier loaded with heavy ore
Both I and II
The label required on cases of common fireworks should read:
“explosive C”
In the segregation of packages containing incompatible dangerous goods and stowed in the conventional way, what is meant by the single subsidiary risk label “X”?
“no segregation required”
The residual area between the righting arm curve and heeling arm curve shall not be less than _____.
0.075 meter-radian
The intact stability requirement of any ship carrying bulk grain should be such that the initial GM, after correction for free surface of liquids in tanks, shall not be less than _____.
0m 18s
The initial metacentric height (GM), after correction for the free surface effects of liquid in tanks, shall be not less than _______.
0m 18s
Using a safety factor of five, determine what is the safe working load for 3-1/2 inch manila line with a breaking stress of 4.9 tons.
0.98 tons
Using a safety factor of 6, determine the safe working load of manila line with a breaking stress of 8 tons.
1.33 tons
If the height of the timber deck cargo exceeds 4 meters, the spacing of the lashings should be:
1m 30s
On a cargo ship within a seasonal winter zone in winter, the height of the deck cargo above the weather deck shall not exceed _____ of the extreme breadth of the ship:
Jan 3, 2015
In a partly filled compartment, a division, if fitted, shall extend from ______ of the maximum breadth of the compartment above the level of the grain surface and to the same distance below the grain surface.
Jan 8, 2015
Spontaneous heating of coal rapidly accelerates at the approximate minimum temperature of:
100° F
The stability requirements of vessels loaded with bulk grain should be such that any angle of heel due to grain shift shall not exceed _____.
12 degrees
The angle of heel due to the shift of grain shall not be greater than what angle?
12°
In union purchase, the angle between the two runners must not exceed:
120 degrees
A tank when full will hold 150 tonnes of salt water. Find how many tonnes of oil relative density 0.89 it will hold, allowing 2% of the volume of the tank for expansion.
127.6 tonnes
Grade D combustible liquids have a maximum flash point of:
149 F
On a tanker loading maximum range:
-15 C to 46 C
The approx. rolling period of a dry cargo vessel with GM 3.0 ft, beam 60 ft is:
15 seconds
Grade E combustible liquids have a flash point of ____.
150°F or above
Your tanker is loading a hazardous cargo. The allowance for expansion is based on ambient temperatures of what maximum range?
-18° C to 46° C
The package stowed at the upper outboard edge of the stow of the timber deck cargo should be secured by at least how many lashings?
2 each
What is the maximum length of timber shoring when securing a container?
2 meters
A nylon line is rated at 12,000 lbs. breaking strain. Using a safety factor of 5, what is the safe working load (SWL)?
2,400 lbs
Timber shoring containerization cargo should not exceed what length?
2m 30s
The Port Authority will normally require notification at least _____ in advance of the transport or handling of dangerous substances, including those which are not discharged at that port.
24 hours
Ten triangular piles of piping on the pier are to be loaded - each pile has a 20 foot base, is 15 feet high and 30 feet long. If the breadth of the hold is 60 feet and the piping is to be stowed fore and aft in a 30 foot space, how high will it stow?
25 feet
A normal safe working load for used nylon rope in good condition is __________.
25% of its breaking strain
Uprights must be spaced at intervals not exceeding:
3m
A nylon line is rated at 15,000 kgs. Breaking strain. Using a safety factor of 5, what is the safe working load (SWL)?
3,000 kgs
All ships require regular survey carried out by a surveyor of a classification society, this should preferably take place in a drydock, the period between in-dock survey can be extended up to:
30 months
Usng a safety factor of five, determine the safe working load of a line with a breaking strain of 20,000 kgs.
4,000 kgs.
The wire rope used for cargo handling on board your vessel has a safe working load of eight tons. It shall be able to withstand a breaking test load of __________.
40 tons
What is the equivalent of a “Barrel” as a unit of liquid measurement?
42 U.S. gallons at 60 deg. Fahrenheit
The “Barrel” as a unit of liquid measurement is equivalent to:
42 US gallons at 60 deg fahrenheit
Using a safety factor of 6, determine the safe working load of a line with a breaking strain of 30,000 pounds.
5,000 lbs.
Specific requirement of the IMO Grain Code require that shifting boards shall have thickness of not less than _____, be grain tight and where necessary, supported by uprights.
50 mm
When goods in different compatibility groups are transported on deck, they should not be stowed less than ____.
6 meters apart
The pre-wash procedure for ships carrying non-solidifying substances which have a viscosity equal to or greater than 25 mPa at 20 degrees Celsius in hot water wash of at least _______.
60 deg C
The maximum unsupported span, with reference to the requirements of the International Grain Code, for shifting boards of 3.0 meters shall have a thickness of:
60 mm
You are loading a cargo of canned goods with a stowage factor of 65. If you allow 15% for broken stowage, how many tons can be loaded in a space of 55,000 cubic feet?
719 tons
The proportion of nitrogen in inert gas is approximately:
77% by volume
A vessel’s hold has a bale capacity of 13,901.6 cubic meters and grain capacity of 15,446.3 cubic meters and, a cargo of barley in bag is to be loaded with stowage factor of 1.67 cubic meters per ton. What is the amount of cargo that can be loaded in the said hold?
8,324.3 metric tons
A tank is loaded with 8,500 barrels of gasoline. The temperature of the product is 70°F (21°C), and it has a coefficient of expansion of .0008. The net amount of cargo loaded is __________.
8,432 barrels
A tank is loaded with 9,000 barrels of gasoline. The temperature of the product is 80°F (27°C), and it has a coefficient of expansion of .0008. The net amount of cargo loaded is __________.
8,856 barrels
Flammable liquid means any liquid which gives off flammable:
80°F
Flammable liquid means any liquid which gives off flammable vapors at or below _______.
80°F (26.7°C)
A tank is loaded with 9,800 barrels of gasoline. The temperature of the product is 75°F (24°C), and it has a coefficient of expansion of .0008. The net amount of cargo loaded is __________.
9,682 barrels
Which vessel is to be loaded full but not down?
a break-bulk vessel loaded with palletized cargoes
The supplement to the IOPP Certificates contains what type of data?
A checklist of the equipment installed for controlling the discharge of oil
What is the best instrument for establishing a safe working area before welding in a confined space?
A combination combustible gas and oxygen indicator
Which of the following instruments is suitable for determining the presence of explosive concentrations of fuel oil vapors in tanks?
A combustible gas indicator
Progressive flooding may be indicated by:
a continual worsening of list or trim
Protective clothing must be worn while sampling hazardous cargo on a tankship, and as a minimum includes __________.
a face mask and/or goggles
Reid vapor pressure is __________.
a measurement of the amount of flammable vapors given off by a liquid at a certain temperature
On a multiple-product chemical tanker you are to load DIETHYLAMINE. Which is not a requirement for transporting this product?
A person taking samples must wear protective clothing
Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because:
a subsequent temperature rise will cause the cargo to overflow
Cargo transfer operations on a tank vessel need not be discontinued when:
A tug comes alongside while the tanker is loading grade D and E cargoes
A petroleum liquid is said to be grade D combustible liquid flash point is:
above 80 deg F but below 150 deg F
All the ferrous components of a ship will sustain strong corrosive action in the presence of:
acid waters
During loading of dangerous goods a package is dropped. Despite damaging the packaging the product can be clearly seen and is not damaged. What should be done?
Advise the Master
When is a tank considered to be gas-free?
After satisfactory testing with an oxygen analyzer
Electric cargo winches have an overload safety device which normally cuts the current to the winch motor __________.
after torque causes line pull to exceed the rated capacity of the winch
Each ship carrying dangerous goods in packaged form shall have which of the following?
all choices
The publication Merchant Shipping (Dangerous Goods) Regulations and IMDG Code are on board in connection with what cargoes?
all choices
The following cargo pumps capacity depends upon:
all of the above
Which of the following is/are advantage/s of “crude oil washing” (COW):
all of the above are correct
What are the risks associated with enclosed or confined spaces?
All of these
What precautions should be taken before entering a suspect space?
All of these
What procedures should be agreed on before entry into an enclosed cargo space?
All of these
Refrigerated cargo space should be provided adequate dunnage in order to:
all of these
Ship officers should check every cargo hold after it is filled with bulk grain to ensure:
All void spaces are filled
Ship’s officers should check every cargo compartment after it is filled with bulk grain to ensure _____.
all void spaces are filled
When stowing bagged cargo, you wish to maintain a vertical wall or bulkhead as the stowage progresses. The bulkhead extends from one side of the vessel to the other and exceeds one section forward of the square, from the lower holds up to the tween decks. Stability of the bulkhead will be maintained by _____.
Alternating the stow with one fore and aft and the next tier athwartship.
Ullages on tankers are measured from __________.
an above-deck datum such as the top of the ullage pipe
Threshold Limit Value (TLV) is the maximum concentration of a substance that should be present in:
an atmospheric sample
All handling and stowage of packaged hazardous materials on board a domestic vessel engaged in foreign trade shall be done under the supervision of __________.
an officer assigned to the vessel
Deficient oxygen content inside a chain locker can be detected with:
an oxygen indicator
It is the angle of heel for which the openings in the hull, superstructure or deck houses, which can not be closed weather tight is immersed.
angle of flooding
The angle of heel at which openings in the hull, superstructures or deckhouses, which cannot be closed weather tight is immersed, is called:
Angle of Flooding
The angle of heel for which the openings in the hull, superstructure or deck houses, which can not be closed weather tight is immersed, is called:
Angle of flooding
This is defined by the International Grain Code as an angle of heel at which the openings in the superstructure or deckhouses which cannot be closed weathertight is immerse.
angle of flooding
It is the angle between a horizontal plane and the cone slope of non-cohesive granular material.
angle of repose
What do you call the maximum angle at which grain, coal or other products loaded in bulk will retain their form or remain in a heap?
angle of repose
The maximum angle at which grain, coal or other products loaded in bulk will retain their form or remain in a heap is called:
angle of repose
The maximum angle at which grain, coal or other products loaded in bulk will retain their form or remain in a heap is called:
angle of repose
The maximum angle at which grain, coal or other products loaded in the bulk will retain their form or remain in a heap is called:
angle of response
Static electricity may be built up by the:
Any of the above
A limit on the range of residual dynamic stability which can be considered effective is defined by which of the following:
any of the above whichever is least
When using the oxygen indicator, how long should you wait after the sample is drawn into the instrument before reading the meter?
at least 10 seconds
The minimum temperature required to ignite gas or vapor without a spark or flame being present is called __________.
autoignition temperature
The standard unit of liquid volume used in the petroleum industry, as well as the tanker industry, is a __________.
Barrels
The code for safe practice for solid bulk cargoes are most commonly known as __________.
BC code
The absence of smell of petroleum gas should never be taken to indicate the absence of a toxic gas. Why?
because toxic gas may dull the sense of smell
Volatile petroleum oil has a flash point:
below 60°C
Another name coal naptha that would appear on a dangerous cargo manifest is:
Benzene
Your containership has a container displaying a hazardous cargo placard. The placard has the number 2224 on it. This indicates that it is carrying what cargo?
Benzonitrile
An “eductor” uses what principle?
bernoulli principle
A relief valve for a cargo pump is generally installed _____.
Between the pump and discharge valve
What colored label should corrosive liquids and acids should have?
black and white
Corrosives are labeled with a _____ placard.
black and white
Which begins when the tank is almost empty?
bottom wash
Cargoes that might leak from containers are called:
bulk cargoes
What is the principle behind producing inert gas on board ship?
by the combustion of fuel oil to produce exhaust gases with an oxygen content of less than 5%
How is cooling / cleaning water supplied to the inert gas scrubber tower?
By the scrubber sea water pump
Your ship is carrying hazardous cargo. During a daily inspection, you notice that some of the cargo has shifted and several cases are broken. You should FIRST ___________.
call out the deck gang to jettison the cargo
The word “toxic” is used to describe a petroleum liquid when it:
can harm you if it touches a sensitive part of the body
Different types of cargoes require different methods of slinging, what would be the best type of sling for barrels and drums?
Can hooks
it means a log which is “slab-cut” or ripped lenghtwise so that the resulting thick pieces have two opposing, parallel flat sides.
Cant
A hygroscopic cargo is defined as a cargo _______.
capable of absorbing moisture in the form of a gas
You have orders to load cargoes of carbon disulfide, disopropylamine and pyridine on your multi product tanks. Which statement is TRUE?
Carbon disulfide must be carried in nos. 1 and 2 center tanks and disopropylamine in nos. 1 and 2 wing tanks.
Which toxic gas is a product of incomplete combustion, and is often present when a fire burns in a closed compartment?
carbon monoxide
Materials which at least contain some fine particles and some moisture, usually water, although they need not be visibly wet in appearance are called:
Cargoes which may liquefy
What is the title of Section 8 in the Code of safe practices for solid bulk cargoes (BC Code)?
cargoes which may liquefy test procedure
The wooden planking that protects the tank top from cargo loading is called __________.
Ceiling
Crewmembers should use goggles and a facial respirator when loading or discharging:
cement in bulk
Which pump must always be primed?
Centrifugal pump
The carriage of dangerous goods are provided for under SOLAS chapter ____.
Chapter VII
Carriage of dangerous cargoes either or in package form is covered under SOLAS ___________?
Chapter VIII
Gases carried in tankers are usually either hydrocarbon or chemical. VCM (Vinyl Chloride Monomer) is a _____ gas.
Chemical
Under the IMDG code, all hazardous cargoes are assigned to a category representing their major hazard. These categories are assigned a number and are called:
class
Explosives, as per International Maritime Dangerous Goods code, are classified as:
Class 1
Under the International Maritime Dangerous Goods code, explosive are classified as:
Class 1
Very insensitive substances which have a mass explosion hazard is at:
Class 1.5
What entry on a dangerous cargo manifest concerning the classification of a cargo is NOT correct?
Class 2 - gas
Under the IMDG code, Toxic gases are classified as ________.
class 2.3
Coal, as per the IMDG code, that has shown itself liable, or may be liable to spontaneous heating is classified as:
Class 4.2
Substances liable to spontaneous combustion, under The IMDG code, are classified as:
Class 4.2
Coal that has shown itself liable, or may be liable to spontaneous heating is at:
Class 4.2
Which statement is not true concerning the stowage of commercial explosives?
Class C explosives may not be stowed in the same hold with class B poisons
Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker?
Cleanliness of the products
Which of the following statements about shipping coal is true?
Coal should be surface ventilated to remove methane gas
Which of the following is INCORRECT when carrying coal?
coal should be thoroughly ventilated
Cottonseed oil is classed as a __________.
combustible liquid
Which of the following principles are to be followed in the carriage of explosive as laid down in the Merchant Shipping (Dangerous Goods) Regulations?
Compartments electrical apparatus and cables are designed to minimize risk of fire or explosion.
What are the materials that undergo some form of purification process by physical separation of undesired ingredients?
Concentrates
You are cleaning tanks in preparation for loading of clean ballast in the load-on-top process. Recycles wash water reduces the amount of slops to be settled. Wash water should not be recycled if it:
contains entrained oil
Sour crude oil:
Contains high quantities of hydrogen sulfide
Sour crude oil __________.
contains high quantities of hydrogen sulphide
Damage to cargo caused by dust is known as _____.
contamination
Which can be prevented only by segregating two lots of cargo into separate holds?
Contamination of a food cargo by an odorous cargo
With dangerous goods labels, black and white labels are used for:
Corrosive liquids
What cargo would require a dangerous cargo manifest?
cotton
The complete details of a crude oil washing system abroad your vessel, including the operating sequences and procedures, designed, characteristics, description of the system, and required personnel will be found in the ______.
Crude oil washing operations and equipment manual
A combustible liquid with a flash point of 90°F would be grade:
D
A petroleum liquid has a flash point of 85°F. This liquid is classed as a grade:
D combustible liquid
You are transporting dangerous cargo on your vessel. You must inspect this cargo _______.
Daily
The regulation requires you to periodically inspect the cargo and make an entry in a log when you are transporting:
dangerous cargo
With dangerous goods labels, blue labels are used for:
dangerous when wet
Which term describes goods having a stowage factor below 40?
Deadweight cargo
SOLAS regulation VII/6 on the stowage of dangerous goods in packaged form that give off dangerous vapours shall be stowed in a mechanically ventilated space or on _______.
Deck
Cargoes that are highly susceptible to damage by tainting from odorous cargoes are called:
delicate cargo
What is meant by “thieving” a petroleum cargo?
Determining the amount of water (if any) in each cargo tank
The size of wire rope is determined by the ______.
Diameter
The transport of liquid cargo, on board LNG carriers, from ship to shore goes from cargo tanks, cargo, liquid cargo lines, manifold, ______ then to the shore terminal tanks.
discharge arms
The main function of a stripping system is to:
Discharge liquid left in the cargo tanks after the main pumps have discharge the bulk
What item is determined in the draft survey to obtain the cargo loaded?
Displacement
Which entry on a dangerous cargo manifest concerning the classification of a cargo is not correct?
Division 3.1
What is the meaning of ESD system?
Emergency shut down system
All liquids can change into vapour and the process is called:
evaporation
When stripping a tank, loss of suction may be caused by:
excessive air in the suction line
With an increase in temperature, the volume of flammable and combustible liquids __________.
expands
With an increase in temperature the volume of flammable and combustible liquids:
Expands
Which of the following is incorrect?
Feeders can be used to increase the grain holding capacity of a hold
In grain loading, which of the following statement is INCORRECT:
Feeders can be used to increase the grain loading capacity of a hold.
This is defined by Regulation 3 of SOLAS 1992 as any compartment in which after loading and trimming the bulk grain is at its highest possible level.
filled compartments
Portable light should be removed from spaces as soon as they are no longer required because of:
fire hazard
You are on a tanker that carries liquefied gases in bulk. The person on watch is required to have what information about the cargo easily accesible?
firefighting procedures
If given equal care, nylon line should last how many times longer than manila line?
Five
The primary hazards in transporting LPG and LNG:
Flammability
Substance having a flashpoint of 80 deg Fahrenheit or below are:
Flammable
Butadiene, inhibited would be labeled as a:
flammable gas
Grade A petroleum product is:
flammable liquid
The lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air is known as the __________.
Flash point
What do the designations A, B, C, D and E grades of cargo refer to?
flash point range and reid vapor pressure index of petroleum products
It is the lowest temperature at which petroleum will remain fluid.
flash ppoint
The tendency of a flammable liquid to vaporize is indicated by its:
flashpoint
As defined in the International Grain Code, which of the following is not included in the term “grain”?
flour or soybean meal
Guideline requirements for the carriage of bulk grain state that:
following a cargo shift, the maximum heel must be no more than 12°
Which of the following best describes for how long gas free test is good for?
For the instant that is made
According to the Cargo Information Data sheet of LNG, the primary health hazard when this liquids spills a person’s skin is __________.
frost bite
Which statement is NOT true concerning precautions during fueling operations?
Fuel tanks should be topped off with no room for expansion
What information should be supplied to a vessel prior to carrying a cargo of dangerous liquid chemical in bulk?
full description of the physical and chemical properties including reactivity
What is the state of the tank or compartment that has been tested and found to be without toxic and explosive gases?
gas free
When loading liquid cargo, evaporation starts as soon as the liquid enters the cargo tanks when loading:
gasoline and crude oil
For the purpose of regulating tank vessels flammable liquids are liquids are liquids which will:
Give off flammable vapors at or below 80 F
Odorous cargoes are those that:
give off fumes that may damage other cargoes
You are carrying a packaged cargo of containers of liquid vulcanizing compound. Which of the following statements is TRUE?
Glass carboys are acceptable for shipment of this cargo if they have adequate outside packaging
Petroleum products having a reid vapor pressure of 8.5 psi or below:
Grade C
The BC code provides guidance to Administration, Ship owners, Shippers and Masters in the standards to be applied in the safe stowage and shipment of solid bulk cargoes EXCEPT:
Grain
This term as defined in the International Grain Code include wheat, maize, oats, rye, barley, rice, seeds and processed forms thereof, whose behavior is similar to that of grain in its natural state.
Grain
The product of the weight of the shifted grain multiplied by the horizontal distance between its initial and final center of gravity:
Grain Heeling Moment
The product of the weight of the shifted grain multiplied by the horizontal distance between its initial and final centrts of gravity.
Grain Heeling Moment
The placard of non-flammable gases are colored:
green
Non flammable gases should have what kind of label?
Green
Non-flammable gases should have what knid of label?
green
Placards of non-flammable gases are colored:
green
Which precaution should be observed when gauging a tank?
Ground static electricity by touching your hand to the tank shell
The label required on the containers carrying barium oxide in an international shipment should read ______.
harmful stow away from foodstuffs
If you carry packaged hazardous cargoes on a break bulk vessel bound foreign, you must :
have the shipping papers indicate the proper shipping name and the technical name of n.o.s. cargoes
In LNG operation, vapour generated are returned to shore via the vapour return connection using ____?
HD compressor
An example of damage caused by inherent vice is:
heating of grain
The weight of liquefied petroleum gas vapors as compared to air is:
heavier
Most petroleum vapours are:
heavier than air
Which of the following products is NOT volatile?
heavy fuel oil
The following products are volatile EXCEPT:
heavy fuel oil
The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the ______.
Heel of the boom
In an inert gas system audible and visible alarms shall be provided to indicate faulty conditions in the installation. Which of the following conditions do not activate the alarms?
High air pressure in water seal
What is the condition of the inert gas as it is produced by the boilers or inert gas generator?
Hot and containing soot particles
You are gas freeing a tank from LNG using a combustion type inert gas generator. After blowing through with air, for which of these would you not need to test?
Hydrogen sulphide
On board LNG ships, during navigation, the liquid cargo naturally evaporates into boil-off gas. Which of the statement/s below is/are TRUE? I. boil-off gas is consumed by the ships II. boil-off gas is re-liquefied and sent back to the cargo tanks III. excess boil-off gas is always practically vented out via the mast or vent riser
I and II
Class 3 is/are: I. flammable liquid II. flammable gases III. flammable solids
I only
Which of the following causes an ESD during cargo transfer operation on LNG ships? I. Electrical blackout II. Fire III. Manual activation IV. Gas detection on gas hazardous area
I, II and III
The international code for the construction and equipment of ship’s carrying liquefied gasses in bulk is called :
IGC code
The lowest temperature to which oil must be raised so that vapor evolves at a rate which permits continuous burning when a flame is momentarily applied is called ____.
Ignition point
The lowest temperature required to cause self sustained combustion of a sibstance independent of any outside source of ignition is:
ignition temperature
Class 4.2 substance liable to spontaneous combustion either solids or liquids possessing the common property of being liable spontaneously to: I. Air and Heat II. Heat and to Ignite III. Air and Explode
II only
Marine Pollutants or substances which because of their potential to bioaccumulate in seafood or because of high toxicity to aquatic life, are subject to the regulations in annex _____________of MARPOL 73/78.
III
Which publication should be followed to ensure compliance with the requirements of SOLAS for the carriage of dangerous goods in packaged from?
IMDG code
Full reference and details relating to dangerous goods will be found in which document?
IMDG Code
Which publication should be followed to ensure compliance with the requirements of SOLAS for the carriage of dangerous goods is package form?
IMDG Code
Where should cargoes which by their nature could contaminate other cargoes aboard is stowed?
In a separate hold compartment not sharing a common ventilation
Damage or leaking packages should not be accepted until they have been checked, repaired and declared to be:
in satisfactory condition for carriage
The atmosphere in a tank might too lean if it is:
Incapable of supporting combustible because the hydrocarbon content is below the (LFL) Lower Flammable Limit
According to SOLAS regulation, dangerous goods shall be loaded, secured and stowed safely and efficiently in accordance with the nature of the goods. ________ goods shall be segregated from one another.
Incompatible
You start a centrifugal cargo pump to discharge cargo. The pump works for a while and then loses suction. This could be caused by:
Incomplete priming
You start a centrifugal cargo pump to discharge cargo. The pump works for a while and then loses suction. This could be caused by:
incomplete priming
When oil temperature rises, the volume:
increases
The vapor pressure of a substance:
increases with the temperature
The timber deck cargo should be secured throughout its length by what kind of lashing?
independent
What do you call a gauging device in the Code for the Construction and Equipment of the Ships carrying dangerous chemical in bulk which does not penetrate the tank shell and is independent of the tank?
indirect device
What is that system that delivers treated fuel gas into a tank whose main functions is to reduce oxygen content to a safe level and maintain positive pressure in the tank?
inert gas system
Red and White label is used to label containers of:
inflammable solids
Certain cargoes must be segregated because of their ___________.
Inherent characteristics
Damage caused by excessive heating within the cargo is classified as:
Inherent vice damage
It is a packaging for which an outer packaging is required for transport.
inner packaging
LNG carriers with spherical tanks or independent Type “B” tanks have their cargo tanks located where?
inside at the bottom center of the cargo tank
Liquefied gasses is a compressed gas, cooled and condensed up to its liquid state. To avoid the cargo of an LNG carrier to return into its “gaseous state”, each tank is protected by the ____?
Insulation
Certain cargoes must be segregated because of their:
interest characteristics
What do you call the rigid or flexible portable packaging other than specified in Chapter 6.1?
Intermediate Bulk Containers
Gross tonnage is defined as:
internal capacity
The Certificate of Inspection for a containership __________.
is issued by the Coast Guard and is usually valid for 2 years
Which is characteristic of a “special cargo”?
It is of high value or easily pilferable
Which of the following is characteristic of a “special cargo”?
It is of high value or easily pilferable
How would you treat the spillage from petrol tanks of cars?
It must immediately remove
The advantage of transporting gas under refrigeration is _____________.
it reduces its volume
What is the advantage of transporting gas under refrigeration?
it reduces its volume
When grade D or E products are handled or used at elevated temperatures they are:
Just as hazardous as the volatile products
When grade D or E products are handled or used at elevated temperatures, they are:
just as hazardous as the volatile products
A stiff vessel will have a GM which is:
Large
A type of hatch cover often called “piggy back” consisting of two panels, one of which has powered wheels.
Lift and roll covers
When planning the loading or discharging of a VLCC, what is the most important consideration?
limit of the bending moment
The piping that routes an oil cargo from the manifold to under deck pipelines is known as;
line drop
Gases which can become liquid under pressure at ambient temperature.
Liquefied gases
In order to determine the thievage, ________ is used.
lithmus paste
When carrying out stripping of a tank, excessive air in the suction line may cause:
loss of suction
When a vessel is heeled, due to a shift of cargo, the area below the heeling arm curve represents:
lost stability
It is a state that occurs when a mass of granular materials is saturated with liquid to an extent that under the influence of prevailing external forces such as vibration, impaction or ship’s motion, it looses its internal shear strength and behaves as a liquid.
low state
The most inherent danger in LPG is:
Low temperature causes frostbite or freezing
Combustible gas indicators measure the presence of combustible gas as a percentage of the ______.
lower explosive limit
An inert gas system installed on tankers is designed for:
Lower oxygen level inside the cargo tanks making explosion remote
The common name for propone and butane is ____.
LPG
Which statement is true?
LPG has a higher boiling point than LNG
SOLAS regulation VII/6 requires that explosives, except ammunition shall be stowed in a ______ and shall be kept closed while at sea.
Magazine
Packages containing a harmful substance shall be durably marked with the correct technical name, and further shall be labeled to indicate that the substance is a ______.
Marine pollutant
A document used to indicate suspected cargo damage caused by rough weather would be the __________.
Master’s Note of Protest
The timber deck cargo should be secured throughout its length, the maximum spacing of the lashings should be determined by the:
maximum height of the timber
Atmosphere laden with coal dust or grain dust caused by loading these cargoes ____.
May be explosive in some concentration
A cargo that has a stowage factor over 40 is known as a __________.
Measurement cargo
In handling break bulk hazardous materials, it is forbidden to use:
metal bale hooks
What is the main hydrocarbon gas that makes up LNG?
Methane
Which of the following liquefied hydrocarbon gasses has the lowest boiling point?
Methane
What do you call the movement of moisture contained in materials by settling and consolidation of the materials due to vibration and ship’s motion?
moisture migration
Which of the following cargoes would be most likely to be discharged using positive displacement reciprocating cargo pumps?
Molasses
A survey of refrigerated cargo, to certify that proper methods of stowage were utilized, can be conducted by the ______.
National Cargo Bureau
Every vessel which loads bulk grain in the U.S. shall submit a stability calculation for the intended voyage to the attending _____ surveyor before a Certificate of Readiness to Load can be issued.
National Cargo Bureau
Enclosed spaces containing gasoline, machinery, or fuel tanks shall have which of the following types of ventilation?
Natural supply and mechanical exhaust
You are on containership carrying a tank container that had been filled with sodium, hydroxide solution. The container is empty but has not been cleaned. What placard is required?
no placard is required; the tank opening must be sealed
The label required for magnesium scrap is:
none of the above
Green labeled cargo indicates:
non-flammable compressed gas
With dangerous goods labels, blue labels are used for:
non-flammable compressed gas
Argon is classified as a __________.
non-flammable gas
What is the instantaneous rate of discharge of oil content of any effluent when a tanker is proceeding en route may be permitted?
not exceeding 30 liters per mile
When coming from cold climate to hot climate and carrying hygroscopic cargo, you should:
Not ventilate
When the dew point of the outside air is higher than the dew point of the air in the cargo hold, you should __________.
not ventilate the cargo holds
Which type of line is best able to withstand sudden shock loads?
Nylon
Which of the following is not a precaution to be taken when topping off?
Observe and record the vessel’s draft
During loading dangerous goods, the documentation is incomplete regarding stowage and classification details. The deck officer should:
obtain full documentation before loading
What special precaution/s should be taken when loading and carrying concentrates?
Obtain written cargo information from the shipper.
Cargoes that gibes off fumes that may contaminate other cargo is known as a:
odorous cargo
How do you classify cargo that gives off fumes that may contaminate other cargo?
odorous cargo
Cargoes reference within the IMDG Code may be anticipated to be:
of a hazardous nature
Dangerous cargo on a pallet should be stowed:
on deck
You have completed a Dangerous Cargo Manifest for dangerous cargoes loaded on board. It should be kept in a conspicuous location :
on or near the bridge
You would carry a marine pollutant cargo where stowage is permitted “On deck only”. Where would you stow this?
on well protected decks
A vessel not having on board a document of authorization issued in accordance with part A3 of the International Grain Code may be permitted to load bulk grain provided that the total weight of the bulk grain shall not exceed:
One-third of the deadweight of the ship
What can cause a lack of oxygen in a chain locker?
oxidation
Tree or weed killing compound is classified as:
oxidizer
Under the IMO Class 5.1 these are substance that yield oxygen which liable to increase the intensity of fire in other materials.
oxidizing substance
What can be used to measure the percentage of oxygen inside a chain locker?
oxygen indicator
A _____ is also required, certifying that a container or vehicle has been properly packed and secured, if loaded with dangerous goods.
packing certificate
The best way to lift many small articles aboard your vessel is with a __________.
Pallet
High concentrations of H2S gas are most dangerous to personnel because they can:
paralyze your breathing system
Reporting of incidents involving dangerous goods are covered under IMDG code ________.
Part a
This is defined by Regulation 3 of SOLAS 1992 as any compartment wherein bulk grain is not loaded in a manner prescribed under the code.
partly filled compartment
On tanker ship the functions of connecting and disconnecting hose and topping off must be supervised by:
Person designated as “Person in Charge”
A safety shackle is identified by its __________.
Pin
Skull and cross bones placard means:
poisonous substances
Skulls and cross bones placard means:
poisonous substances
The simplest type of hatch cover that are merely lifted on and off the hatch coaming.
Pontoon covers
A tank that is not permanently secured on board a vessel, having a capacity of more than 450 liters, and a shell fitted with a stabilizing members and items of service equipment necessary for the transport of gases, liquids or solids are called ____________?
portable tank
The ship’s stability at all times when loading timber deck cargo, including during the process of unloading the same should be:
positive
Bonding cables are used during cargo transfer to ______.
Prevent an accidental discharge of static electricity
Before loading bulk grain, bilge wells must be covered to _______.
prevent cargo shifting into the bilge wells
Before loading bulk grain, bilge wells must be covered to ______.
prevent cargos shifting to the bilge well.
Flame screens are used to __________.
prevent flames from entering tanks
An inert gas system should be used to:
prevent the generation of flammable or combustible gas in tanks
Annex III of the International Convention for the Prevention of Pollutions from ships, 1972/1978 deals with:
Prevention of pollution by harmful substance carried by sea in package from.
You are on watch at sea at night when a fire breaks out in #3 hold just forward of the bridge. You would NOT __________.
proceed to the space and inspect the extent of the fire
Which statement is true concerning the oxygen indicator?
Prolong exposure to CO2 can result in false readings
A term use onboard ship meaning, the process of replacing foul air in any of the ship’s compartment with pure air.
Purging
It is the process of replacing foul air in any of the ship’s compartment with pure air.
purging
Spontaneous combustion is most likely to occur in:
Rags soaked in linseed oil
The effect of a heated bulkhead on a gyroscopic commodity is:
Raise vapor pressure of the commodity
What is meant by the term “topping the boom”?
Raising the boom
Flammable liquids should have what kind of label?
red
Flammable liquids should have what kind of label?
red
Activated charcoal is labeled with what color?
red and white
Containers of flammable solids should be conspicuously labeled by the shipper with a:
Red and White Label
You receive a package, for shipment aboard your vessel, containing Class 1 explosives. The package is damp, moldy and stained. You must __________.
refuse to accept the package
When carrying refrigerated cargo, while on passage the most important monitoring is:
regular temperature checks
What does the area between the righting arm curve and heeling arm curve measured up to a specified angle of inclination represents?
residual dynamic stability
Contamination of food cargo by an odorous cargo can only be prevented by:
segregating the two lots of cargo into separate holds with different ventilation system
The IMDG Code ensures safety mainly by stipulating the packaging required and ______.
segregation from other cargoes with which there could be an adverse action
Protection of cargo against tainting damage can be best obtained by _____.
segregation of cargo by using different hatches
Substances that are liable to undergo at normal elevated temperature a strong exothermic decomposition caused by excessively high transport temperature or contamination are called:
Self-reactive flammable solids
In LNG operation, to control tank pressure, vapour generated in tanks should be ____?
Sent to the boiler and burn as fuel
What is the tendency of gasoline fumes?
Settle near the bottom of the bilge
What equipment is used to prevent grain in a slack grain hatch from reaching an angle of repose?
shifting boards
What equipment is used to prevent grain in a slack grain hatch from reaching the angle of repose?
shifting boards
On a LNG carrier, when the ship is alongside, no cargo operations or inerting should commence until the international “______” must be completed by the ship and terminal and it has been confirmed that such operations can be safely carried out.
Ship/Shore Safety Checklist
Which statement about dangerous cargo manifest is FALSE?
Shipments of hazardous and non-hazardous cargoes may be listed on the manifest if they are destined for the same consignee
Most fire and explosions occur in a fuel tank.
Shortly after fueling when fuel vapors gather
A tank specifically used for the collection of tank draining, tank washing and other oily mixture?
Slop tank
The cargo which is of a very high value or is easily pilferable is called:
special cargo
In a Kvaerner Moss design containment system (LNG), what distinctive shape best describes the cargo tank cover above deck?
spherical dome shaped
You are cleaning the tanks after carrying a cargo of crude oil. Which statement is true?
Steam cleaning and water washing are both capable of generating electrostatic charges within tank.
While bunkering, you notice oil on the water near the bunker barge. What should you do first?
stop bunkering
When you notice oil on the water near vessel while taking on fuel, you should first:
Stop loading
The code of safe practices for solid bulk cargoes (BC Code) section II is titled:
Stowage factors conversion table
A Plan showing the location of cargoes stowed inside the hold:
Stowage plan
What does “block stowage” mean?
stowing all the cargo for a port in the same area
Which is not considered a localized stress?
stress dye to water pressure
What do you call the process of turning solid to gas, without passing the liquid state?
sublimation
Class I are explosive. Division 1.4 explosives are:
Substance and articles which have a present no significant hazard
An oxygen indicator can be used to determine if there is:
sufficient oxygen in a compartment to support life
A type of condensation that forms on surfaces and on all goods in a compartment caused by the inability of cooled air to hold in suspension as much water vapor as warm air.
Sweat
No pulley block shall be used in hoisting or lowering unless clearly stamped with:
SWL
Damage to cargo caused by odors from other cargoes stowed in the same hold:
Tainting damage
The damage caused by cargoes giving off fumes or odors stowed in the same compartment with fine goods or foodstuff is called:
tainting damage
Packages containing dangerous goods shall be durably marked with the correct _____: (trade name alone should not be used)
Technical name
Packages containing dangerous goods shall be durably marked with the correct: (trade name alone should not be used)
technical name
LPG escaping from a tank barge would:
tend to settle on the water
The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the dicharge and in a few minutes the pressure drops sharply. This could be a result of:
The booster pump coming on the line and discharging properly
The oil terminal advised that they are going to use their booster pump to assist the discharging operation. You start the discharge and in a few minutes the pressure drops sharply. This could be the a result of:
the booster pump coming on the line, and discharging properly
The angle of repose of a bulk cargo is defined as:
the greatest angle from the horizontal to which a substance can be raised without it shifting
What must be accurately determined to assess the potential for progressive flooding after a vessel has been damaged?
The integrity of the water tight boundaries
A combustible gas indicator meter is calibrated to read in percentage of _____.
the lower explosive limit concentration
Which of the following is a characteristic of the warning signs required to be displayed on a tank vessel while transferring any hazardous cargo in bulk?
The signs use black lettering on a white background
Which of the warning sign characteristics are required to be displayed on a tank vessel while transferring any hazardous cargo in bulk?
the signs use black on white background
In using the load-on-top method of controlling pollution, what action should be taken after all dirty ballast has been transferred to the slop tank?
The slops should be allowed time to settle
Before entry into a cargo tank which has contained a petroleum product:
the tank must be tested for sufficient oxygen
What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?
The tank must be vented to the atmosphere
The IMO grain rules allows ships not having board a document of authorization issued in accordance with A3, be permitted to load bulk grain provided that:
the total weight of the bulk grain shall not exceed one third of the deadweight of the ship
What is meant when a liquid gas cargo is described as “flammable”?
The vapour from the cargo will burn when mixed with air and ignited
When planning to load an iron ore bulk cargo:
there may be a need to brace the adjacent structure
How are the inert gases produced by the boiler carried to the inert gas plant system?
They are drawn from the boiler uptake by the inert gas fan via the boiler uptake valves and scrubber tower
Which of the following is not an advantage of centrifugal pumps over reciprocating pumps?
They do not require priming for stripping
Which statement is TRUE concerning combustible gas indicators?
They do not work properly where there is a lack of oxygen
What is the purpose of the inert gas scrubber tower?
To cool the flue gases and remove most of the sulphur and soot particles
What is an explosion hazard when exposed to flame?
Toluene
Which of the following is an explosion hazard when exposed to flame?
toluene
Which begins when the tank is about 60% empty?
top wash
When planning to load a coal bulk cargo, you should:
treat it as potentially dangerous
Which type of cargo containment system categorized an LNG carrier?
Type “B” design
Under the Carriage of Goods by Sea Act of 1936, a vessel will be liable for damage to a cargo when the damage arises from __________.
unseaworthiness when sailing
In LNG vessels, when leaking occurs, low temperature of LNG will result in rapid ____.
Vaporization
On passing from a warm climate to a cold climate the hold should be:
Ventilated
Bunker C and fuel oils are know as:
viscous oils
A small quantity of ethyl mercaptan is added to LPG to give it a characteristic:
Warning Odor
To safely enter a compartment where CO2 has been released from a fixed extinguishing system, you should _____.
wear a self-contained breathing apparatus
Cargoes that might leak from containers are called:
wet cargoes
When is a liquid considered to be “volatile”?
When its flashpoint is below 60 degree C (140 degree F)
You are on cargo vessel carrying portable tanks of dangerous cargoes in bulk. Which of the following statement is true?
When transferring sulphuric acid, you must display a red flag by day whether at anchor or moored
A limit on the range of residual dynamic stability which can be considered effective is defined by which of the following?
whichever is the least among the selection
Corrosive liquids are acids should have what kind of label?
White
Corrosives liquids and acids should have what kind of label?
white
Corrosive liquids and acids should have which kind of label?
White and black
As defined in the Code of Safe Practices for Ship’s Carrying Timber Deck Cargoes,which of the following is not included in the term “Timber”?
Wood pulp
Hot and cold work should only be permitted under conditions of strict control. This can be best achieved by the use of appropriate _____.
work permit
Which molten substance is poured into the basket of a wire rope socket being fitted to the end of a wire rope?
Zinc
