Dangerous, Hazardous and Harmful Cargoes Flashcards
(463 cards)
1
Q
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
A
0.15%
2
Q
What is the maximum oxygen content below which flaming combustion will no longer occur?
A
15%
3
Q
Ambient air, which you normally breathe, contains what percent of oxygen?
A
21%
4
Q
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”?
A
1
5
Q
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?
A
2
6
Q
How many grades of petroleum products are combustible/
A
2
7
Q
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”?
A
3
8
Q
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?
A
4
9
Q
Dangerous goods are divided into _____ classification?
A
9
10
Q
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.
A
12
11
Q
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).
A
1960
12
Q
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?
A
15700
13
Q
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.
A
92.6 tonnes
14
Q
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.
A
108 tonnes
15
Q
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.
A
85.5 tonnes
16
Q
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.
A
89.9 tonnes
17
Q
A tank holds 120 tonnes when full of fresh water. Find how many tonnes of oil of relative density 0.84 it will hold.
A
100.8 tonnes
18
Q
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.
A
170 tonnes
19
Q
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.
A
76.5 tonnes
20
Q
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.
A
98.8 tonnes
21
Q
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”?
A
“away from”
22
Q
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”?
A
“separated from”
23
Q
The flash point of vinyl chloride is ____.
A
-108°F
24
Q
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.
A
114.1 tonnes
25
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
26
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
27
Combustible liquid is defined as any liquid having a flash point above _______.
80°F
28
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
29
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
30
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
31
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
32
Barium cyanide solid is classed as "poison B" and cannot be stowed near:
Acids
33
Another name for anhydrous ammonia is ____.
Ammonia gas
34
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
35
What entry on a dangerous cargo manifest concerning the classification of a cargo is correct?
Class 8
36
The chemical formula for hydrogen sulphide is ___.
H2S
37
A group of organic compounds consisting exclusively of the elements carbon and hydrogen is:
Hydrocarbons
38
Which of the following is the highest hydrocarbon gas?
Methane
39
In LNG carriage, RGB means:
return gas blower
40
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
41
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
42
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"
43
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"
44
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
45
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
46
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
47
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
48
What is the quick freezing temperature of non-living organic cargoes?
-20 degs C
49
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
50
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
51
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
52
What produces the most dangerous vapors?
Anhydrous ammonia
53
Which of the following produces the MOST dangerous vapors?
Anhydrous ammonia
54
Another name for coal naphtha that would appear on a dangerous cargo manifest is:
benzene
55
The chemical formula for methane is:
CH4
56
A petroleum liquid has a flash point of 135°F. This liquid is classed as a grade ____.
D flammable liquid
57
What is the meaning of ERS system on board liquefied gas carriers?
emergency release system
58
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
59
What is the proper first aid for the LPG in the eyes?
flash the eye with plenty of water
60
The only cargo whose vapour may be utilized as fuel is _____.
Methane
61
The simplest hydrocarbons which is the main constituent of natural is:
methane
62
Combustible liquids are divided into how many classes?
Two
63
A “Heterogeneous cargo” refer to: I. A bulk carrier loaded with steel II. A bulk carrier loaded with heavy ore
Both I and II
64
The label required on cases of common fireworks should read:
"explosive C"
65
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"
66
The residual area between the righting arm curve and heeling arm curve shall not be less than _____.
0.075 meter-radian
67
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
68
The initial metacentric height (GM), after correction for the free surface effects of liquid in tanks, shall be not less than _______.
0m 18s
69
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
70
Using a safety factor of 6, determine the safe working load of manila line with a breaking stress of 8 tons.
1.33 tons
71
If the height of the timber deck cargo exceeds 4 meters, the spacing of the lashings should be:
1m 30s
72
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
73
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
74
Spontaneous heating of coal rapidly accelerates at the approximate minimum temperature of:
100° F
75
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
76
The angle of heel due to the shift of grain shall not be greater than what angle?
12°
77
In union purchase, the angle between the two runners must not exceed:
120 degrees
78
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
79
Grade D combustible liquids have a maximum flash point of:
149 F
80
On a tanker loading maximum range:
-15 C to 46 C
81
The approx. rolling period of a dry cargo vessel with GM 3.0 ft, beam 60 ft is:
15 seconds
82
Grade E combustible liquids have a flash point of ____.
150°F or above
83
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
84
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
85
What is the maximum length of timber shoring when securing a container?
2 meters
86
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
87
Timber shoring containerization cargo should not exceed what length?
2m 30s
88
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
89
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
90
A normal safe working load for used nylon rope in good condition is __________.
25% of its breaking strain
91
Uprights must be spaced at intervals not exceeding:
3m
92
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
93
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
94
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.
95
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
96
What is the equivalent of a "Barrel" as a unit of liquid measurement?
42 U.S. gallons at 60 deg. Fahrenheit
97
The "Barrel" as a unit of liquid measurement is equivalent to:
42 US gallons at 60 deg fahrenheit
98
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.
99
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
100
When goods in different compatibility groups are transported on deck, they should not be stowed less than ____.
6 meters apart
101
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
102
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
103
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
104
The proportion of nitrogen in inert gas is approximately:
77% by volume
105
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
106
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
107
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
108
Flammable liquid means any liquid which gives off flammable:
80°F
109
Flammable liquid means any liquid which gives off flammable vapors at or below _______.
80°F (26.7°C)
110
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
111
Which vessel is to be loaded full but not down?
a break-bulk vessel loaded with palletized cargoes
112
The supplement to the IOPP Certificates contains what type of data?
A checklist of the equipment installed for controlling the discharge of oil
113
What is the best instrument for establishing a safe working area before welding in a confined space?
A combination combustible gas and oxygen indicator
114
Which of the following instruments is suitable for determining the presence of explosive concentrations of fuel oil vapors in tanks?
A combustible gas indicator
115
Progressive flooding may be indicated by:
a continual worsening of list or trim
116
Protective clothing must be worn while sampling hazardous cargo on a tankship, and as a minimum includes __________.
a face mask and/or goggles
117
Reid vapor pressure is __________.
a measurement of the amount of flammable vapors given off by a liquid at a certain temperature
118
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
119
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
120
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
121
A petroleum liquid is said to be grade D combustible liquid flash point is:
above 80 deg F but below 150 deg F
122
All the ferrous components of a ship will sustain strong corrosive action in the presence of:
acid waters
123
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
124
When is a tank considered to be gas-free?
After satisfactory testing with an oxygen analyzer
125
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
126
Each ship carrying dangerous goods in packaged form shall have which of the following?
all choices
127
The publication Merchant Shipping (Dangerous Goods) Regulations and IMDG Code are on board in connection with what cargoes?
all choices
128
The following cargo pumps capacity depends upon:
all of the above
129
Which of the following is/are advantage/s of "crude oil washing" (COW):
all of the above are correct
130
What are the risks associated with enclosed or confined spaces?
All of these
131
What precautions should be taken before entering a suspect space?
All of these
132
What procedures should be agreed on before entry into an enclosed cargo space?
All of these
133
Refrigerated cargo space should be provided adequate dunnage in order to:
all of these
134
Ship officers should check every cargo hold after it is filled with bulk grain to ensure:
All void spaces are filled
135
Ship's officers should check every cargo compartment after it is filled with bulk grain to ensure _____.
all void spaces are filled
136
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.
137
Ullages on tankers are measured from __________.
an above-deck datum such as the top of the ullage pipe
138
Threshold Limit Value (TLV) is the maximum concentration of a substance that should be present in:
an atmospheric sample
139
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
140
Deficient oxygen content inside a chain locker can be detected with:
an oxygen indicator
141
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
142
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
143
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
144
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
145
It is the angle between a horizontal plane and the cone slope of non-cohesive granular material.
angle of repose
146
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
147
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
148
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
149
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
150
Static electricity may be built up by the:
Any of the above
151
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
152
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
153
The minimum temperature required to ignite gas or vapor without a spark or flame being present is called __________.
autoignition temperature
154
The standard unit of liquid volume used in the petroleum industry, as well as the tanker industry, is a __________.
Barrels
155
The code for safe practice for solid bulk cargoes are most commonly known as __________.
BC code
156
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
157
Volatile petroleum oil has a flash point:
below 60°C
158
Another name coal naptha that would appear on a dangerous cargo manifest is:
Benzene
159
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
160
An "eductor" uses what principle?
bernoulli principle
161
A relief valve for a cargo pump is generally installed _____.
Between the pump and discharge valve
162
What colored label should corrosive liquids and acids should have?
black and white
163
Corrosives are labeled with a _____ placard.
black and white
164
Which begins when the tank is almost empty?
bottom wash
165
Cargoes that might leak from containers are called:
bulk cargoes
166
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%
167
How is cooling / cleaning water supplied to the inert gas scrubber tower?
By the scrubber sea water pump
168
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
169
The word "toxic" is used to describe a petroleum liquid when it:
can harm you if it touches a sensitive part of the body
170
Different types of cargoes require different methods of slinging, what would be the best type of sling for barrels and drums?
Can hooks
171
it means a log which is "slab-cut" or ripped lenghtwise so that the resulting thick pieces have two opposing, parallel flat sides.
Cant
172
A hygroscopic cargo is defined as a cargo _______.
capable of absorbing moisture in the form of a gas
173
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.
174
Which toxic gas is a product of incomplete combustion, and is often present when a fire burns in a closed compartment?
carbon monoxide
175
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
176
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
177
The wooden planking that protects the tank top from cargo loading is called __________.
Ceiling
178
Crewmembers should use goggles and a facial respirator when loading or discharging:
cement in bulk
179
Which pump must always be primed?
Centrifugal pump
180
The carriage of dangerous goods are provided for under SOLAS chapter ____.
Chapter VII
181
Carriage of dangerous cargoes either or in package form is covered under SOLAS ___________?
Chapter VIII
182
Gases carried in tankers are usually either hydrocarbon or chemical. VCM (Vinyl Chloride Monomer) is a _____ gas.
Chemical
183
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
184
Explosives, as per International Maritime Dangerous Goods code, are classified as:
Class 1
185
Under the International Maritime Dangerous Goods code, explosive are classified as:
Class 1
186
Very insensitive substances which have a mass explosion hazard is at:
Class 1.5
187
What entry on a dangerous cargo manifest concerning the classification of a cargo is NOT correct?
Class 2 - gas
188
Under the IMDG code, Toxic gases are classified as ________.
class 2.3
189
Coal, as per the IMDG code, that has shown itself liable, or may be liable to spontaneous heating is classified as:
Class 4.2
190
Substances liable to spontaneous combustion, under The IMDG code, are classified as:
Class 4.2
191
Coal that has shown itself liable, or may be liable to spontaneous heating is at:
Class 4.2
192
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
193
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
194
Which of the following statements about shipping coal is true?
Coal should be surface ventilated to remove methane gas
195
Which of the following is INCORRECT when carrying coal?
coal should be thoroughly ventilated
196
Cottonseed oil is classed as a __________.
combustible liquid
197
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.
198
What are the materials that undergo some form of purification process by physical separation of undesired ingredients?
Concentrates
199
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
200
Sour crude oil:
Contains high quantities of hydrogen sulfide
201
Sour crude oil __________.
contains high quantities of hydrogen sulphide
202
Damage to cargo caused by dust is known as _____.
contamination
203
Which can be prevented only by segregating two lots of cargo into separate holds?
Contamination of a food cargo by an odorous cargo
204
With dangerous goods labels, black and white labels are used for:
Corrosive liquids
205
What cargo would require a dangerous cargo manifest?
cotton
206
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
207
A combustible liquid with a flash point of 90°F would be grade:
D
208
A petroleum liquid has a flash point of 85°F. This liquid is classed as a grade:
D combustible liquid
209
You are transporting dangerous cargo on your vessel. You must inspect this cargo _______.
Daily
210
The regulation requires you to periodically inspect the cargo and make an entry in a log when you are transporting:
dangerous cargo
211
With dangerous goods labels, blue labels are used for:
dangerous when wet
212
Which term describes goods having a stowage factor below 40?
Deadweight cargo
213
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
214
Cargoes that are highly susceptible to damage by tainting from odorous cargoes are called:
delicate cargo
215
What is meant by "thieving" a petroleum cargo?
Determining the amount of water (if any) in each cargo tank
216
The size of wire rope is determined by the ______.
Diameter
217
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
218
The main function of a stripping system is to:
Discharge liquid left in the cargo tanks after the main pumps have discharge the bulk
219
What item is determined in the draft survey to obtain the cargo loaded?
Displacement
220
Which entry on a dangerous cargo manifest concerning the classification of a cargo is not correct?
Division 3.1
221
What is the meaning of ESD system?
Emergency shut down system
222
All liquids can change into vapour and the process is called:
evaporation
223
When stripping a tank, loss of suction may be caused by:
excessive air in the suction line
224
With an increase in temperature, the volume of flammable and combustible liquids __________.
expands
225
With an increase in temperature the volume of flammable and combustible liquids:
Expands
226
Which of the following is incorrect?
Feeders can be used to increase the grain holding capacity of a hold
227
In grain loading, which of the following statement is INCORRECT:
Feeders can be used to increase the grain loading capacity of a hold.
228
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
229
Portable light should be removed from spaces as soon as they are no longer required because of:
fire hazard
230
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
231
If given equal care, nylon line should last how many times longer than manila line?
Five
232
The primary hazards in transporting LPG and LNG:
Flammability
233
Substance having a flashpoint of 80 deg Fahrenheit or below are:
Flammable
234
Butadiene, inhibited would be labeled as a:
flammable gas
235
Grade A petroleum product is:
flammable liquid
236
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
237
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
238
It is the lowest temperature at which petroleum will remain fluid.
flash ppoint
239
The tendency of a flammable liquid to vaporize is indicated by its:
flashpoint
240
As defined in the International Grain Code, which of the following is not included in the term "grain"?
flour or soybean meal
241
Guideline requirements for the carriage of bulk grain state that:
following a cargo shift, the maximum heel must be no more than 12°
242
Which of the following best describes for how long gas free test is good for?
For the instant that is made
243
According to the Cargo Information Data sheet of LNG, the primary health hazard when this liquids spills a person's skin is __________.
frost bite
244
Which statement is NOT true concerning precautions during fueling operations?
Fuel tanks should be topped off with no room for expansion
245
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
246
What is the state of the tank or compartment that has been tested and found to be without toxic and explosive gases?
gas free
247
When loading liquid cargo, evaporation starts as soon as the liquid enters the cargo tanks when loading:
gasoline and crude oil
248
For the purpose of regulating tank vessels flammable liquids are liquids are liquids which will:
Give off flammable vapors at or below 80 F
249
Odorous cargoes are those that:
give off fumes that may damage other cargoes
250
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
251
Petroleum products having a reid vapor pressure of 8.5 psi or below:
Grade C
252
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
253
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
254
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
255
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
256
The placard of non-flammable gases are colored:
green
257
Non flammable gases should have what kind of label?
Green
258
Non-flammable gases should have what knid of label?
green
259
Placards of non-flammable gases are colored:
green
260
Which precaution should be observed when gauging a tank?
Ground static electricity by touching your hand to the tank shell
261
The label required on the containers carrying barium oxide in an international shipment should read ______.
harmful stow away from foodstuffs
262
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
263
In LNG operation, vapour generated are returned to shore via the vapour return connection using ____?
HD compressor
264
An example of damage caused by inherent vice is:
heating of grain
265
The weight of liquefied petroleum gas vapors as compared to air is:
heavier
266
Most petroleum vapours are:
heavier than air
267
Which of the following products is NOT volatile?
heavy fuel oil
268
The following products are volatile EXCEPT:
heavy fuel oil
269
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
270
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
271
What is the condition of the inert gas as it is produced by the boilers or inert gas generator?
Hot and containing soot particles
272
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
273
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
274
Class 3 is/are: I. flammable liquid II. flammable gases III. flammable solids
I only
275
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
276
The international code for the construction and equipment of ship's carrying liquefied gasses in bulk is called :
IGC code
277
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
278
The lowest temperature required to cause self sustained combustion of a sibstance independent of any outside source of ignition is:
ignition temperature
279
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
280
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
281
Which publication should be followed to ensure compliance with the requirements of SOLAS for the carriage of dangerous goods in packaged from?
IMDG code
282
Full reference and details relating to dangerous goods will be found in which document?
IMDG Code
283
Which publication should be followed to ensure compliance with the requirements of SOLAS for the carriage of dangerous goods is package form?
IMDG Code
284
Where should cargoes which by their nature could contaminate other cargoes aboard is stowed?
In a separate hold compartment not sharing a common ventilation
285
Damage or leaking packages should not be accepted until they have been checked, repaired and declared to be:
in satisfactory condition for carriage
286
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
287
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
288
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
289
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
290
When oil temperature rises, the volume:
increases
291
The vapor pressure of a substance:
increases with the temperature
292
The timber deck cargo should be secured throughout its length by what kind of lashing?
independent
293
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
294
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
295
Red and White label is used to label containers of:
inflammable solids
296
Certain cargoes must be segregated because of their ___________.
Inherent characteristics
297
Damage caused by excessive heating within the cargo is classified as:
Inherent vice damage
298
It is a packaging for which an outer packaging is required for transport.
inner packaging
299
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
300
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
301
Certain cargoes must be segregated because of their:
interest characteristics
302
What do you call the rigid or flexible portable packaging other than specified in Chapter 6.1?
Intermediate Bulk Containers
303
Gross tonnage is defined as:
internal capacity
304
The Certificate of Inspection for a containership __________.
is issued by the Coast Guard and is usually valid for 2 years
305
Which is characteristic of a "special cargo"?
It is of high value or easily pilferable
306
Which of the following is characteristic of a "special cargo"?
It is of high value or easily pilferable
307
How would you treat the spillage from petrol tanks of cars?
It must immediately remove
308
The advantage of transporting gas under refrigeration is _____________.
it reduces its volume
309
What is the advantage of transporting gas under refrigeration?
it reduces its volume
310
When grade D or E products are handled or used at elevated temperatures they are:
Just as hazardous as the volatile products
311
When grade D or E products are handled or used at elevated temperatures, they are:
just as hazardous as the volatile products
312
A stiff vessel will have a GM which is:
Large
313
A type of hatch cover often called "piggy back" consisting of two panels, one of which has powered wheels.
Lift and roll covers
314
When planning the loading or discharging of a VLCC, what is the most important consideration?
limit of the bending moment
315
The piping that routes an oil cargo from the manifold to under deck pipelines is known as;
line drop
316
Gases which can become liquid under pressure at ambient temperature.
Liquefied gases
317
In order to determine the thievage, ________ is used.
lithmus paste
318
When carrying out stripping of a tank, excessive air in the suction line may cause:
loss of suction
319
When a vessel is heeled, due to a shift of cargo, the area below the heeling arm curve represents:
lost stability
320
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
321
The most inherent danger in LPG is:
Low temperature causes frostbite or freezing
322
Combustible gas indicators measure the presence of combustible gas as a percentage of the ______.
lower explosive limit
323
An inert gas system installed on tankers is designed for:
Lower oxygen level inside the cargo tanks making explosion remote
324
The common name for propone and butane is ____.
LPG
325
Which statement is true?
LPG has a higher boiling point than LNG
326
SOLAS regulation VII/6 requires that explosives, except ammunition shall be stowed in a ______ and shall be kept closed while at sea.
Magazine
327
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
328
A document used to indicate suspected cargo damage caused by rough weather would be the __________.
Master's Note of Protest
329
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
330
Atmosphere laden with coal dust or grain dust caused by loading these cargoes ____.
May be explosive in some concentration
331
A cargo that has a stowage factor over 40 is known as a __________.
Measurement cargo
332
In handling break bulk hazardous materials, it is forbidden to use:
metal bale hooks
333
What is the main hydrocarbon gas that makes up LNG?
Methane
334
Which of the following liquefied hydrocarbon gasses has the lowest boiling point?
Methane
335
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
336
Which of the following cargoes would be most likely to be discharged using positive displacement reciprocating cargo pumps?
Molasses
337
A survey of refrigerated cargo, to certify that proper methods of stowage were utilized, can be conducted by the ______.
National Cargo Bureau
338
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
339
Enclosed spaces containing gasoline, machinery, or fuel tanks shall have which of the following types of ventilation?
Natural supply and mechanical exhaust
340
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
341
The label required for magnesium scrap is:
none of the above
342
Green labeled cargo indicates:
non-flammable compressed gas
343
With dangerous goods labels, blue labels are used for:
non-flammable compressed gas
344
Argon is classified as a __________.
non-flammable gas
345
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
346
When coming from cold climate to hot climate and carrying hygroscopic cargo, you should:
Not ventilate
347
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
348
Which type of line is best able to withstand sudden shock loads?
Nylon
349
Which of the following is not a precaution to be taken when topping off?
Observe and record the vessel's draft
350
During loading dangerous goods, the documentation is incomplete regarding stowage and classification details. The deck officer should:
obtain full documentation before loading
351
What special precaution/s should be taken when loading and carrying concentrates?
Obtain written cargo information from the shipper.
352
Cargoes that gibes off fumes that may contaminate other cargo is known as a:
odorous cargo
353
How do you classify cargo that gives off fumes that may contaminate other cargo?
odorous cargo
354
Cargoes reference within the IMDG Code may be anticipated to be:
of a hazardous nature
355
Dangerous cargo on a pallet should be stowed:
on deck
356
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
357
You would carry a marine pollutant cargo where stowage is permitted "On deck only". Where would you stow this?
on well protected decks
358
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
359
What can cause a lack of oxygen in a chain locker?
oxidation
360
Tree or weed killing compound is classified as:
oxidizer
361
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
362
What can be used to measure the percentage of oxygen inside a chain locker?
oxygen indicator
363
A _____ is also required, certifying that a container or vehicle has been properly packed and secured, if loaded with dangerous goods.
packing certificate
364
The best way to lift many small articles aboard your vessel is with a __________.
Pallet
365
High concentrations of H2S gas are most dangerous to personnel because they can:
paralyze your breathing system
366
Reporting of incidents involving dangerous goods are covered under IMDG code ________.
Part a
367
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
368
On tanker ship the functions of connecting and disconnecting hose and topping off must be supervised by:
Person designated as "Person in Charge"
369
A safety shackle is identified by its __________.
Pin
370
Skull and cross bones placard means:
poisonous substances
371
Skulls and cross bones placard means:
poisonous substances
372
The simplest type of hatch cover that are merely lifted on and off the hatch coaming.
Pontoon covers
373
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
374
The ship's stability at all times when loading timber deck cargo, including during the process of unloading the same should be:
positive
375
Bonding cables are used during cargo transfer to ______.
Prevent an accidental discharge of static electricity
376
Before loading bulk grain, bilge wells must be covered to _______.
prevent cargo shifting into the bilge wells
377
Before loading bulk grain, bilge wells must be covered to ______.
prevent cargos shifting to the bilge well.
378
Flame screens are used to __________.
prevent flames from entering tanks
379
An inert gas system should be used to:
prevent the generation of flammable or combustible gas in tanks
380
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.
381
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
382
Which statement is true concerning the oxygen indicator?
Prolong exposure to CO2 can result in false readings
383
A term use onboard ship meaning, the process of replacing foul air in any of the ship's compartment with pure air.
Purging
384
It is the process of replacing foul air in any of the ship’s compartment with pure air.
purging
385
Spontaneous combustion is most likely to occur in:
Rags soaked in linseed oil
386
The effect of a heated bulkhead on a gyroscopic commodity is:
Raise vapor pressure of the commodity
387
What is meant by the term "topping the boom"?
Raising the boom
388
Flammable liquids should have what kind of label?
red
389
Flammable liquids should have what kind of label?
red
390
Activated charcoal is labeled with what color?
red and white
391
Containers of flammable solids should be conspicuously labeled by the shipper with a:
Red and White Label
392
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
393
When carrying refrigerated cargo, while on passage the most important monitoring is:
regular temperature checks
394
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
395
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
396
The IMDG Code ensures safety mainly by stipulating the packaging required and ______.
segregation from other cargoes with which there could be an adverse action
397
Protection of cargo against tainting damage can be best obtained by _____.
segregation of cargo by using different hatches
398
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
399
In LNG operation, to control tank pressure, vapour generated in tanks should be ____?
Sent to the boiler and burn as fuel
400
What is the tendency of gasoline fumes?
Settle near the bottom of the bilge
401
What equipment is used to prevent grain in a slack grain hatch from reaching an angle of repose?
shifting boards
402
What equipment is used to prevent grain in a slack grain hatch from reaching the angle of repose?
shifting boards
403
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
404
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
405
Most fire and explosions occur in a fuel tank.
Shortly after fueling when fuel vapors gather
406
A tank specifically used for the collection of tank draining, tank washing and other oily mixture?
Slop tank
407
The cargo which is of a very high value or is easily pilferable is called:
special cargo
408
In a Kvaerner Moss design containment system (LNG), what distinctive shape best describes the cargo tank cover above deck?
spherical dome shaped
409
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.
410
While bunkering, you notice oil on the water near the bunker barge. What should you do first?
stop bunkering
411
When you notice oil on the water near vessel while taking on fuel, you should first:
Stop loading
412
The code of safe practices for solid bulk cargoes (BC Code) section II is titled:
Stowage factors conversion table
413
A Plan showing the location of cargoes stowed inside the hold:
Stowage plan
414
What does "block stowage" mean?
stowing all the cargo for a port in the same area
415
Which is not considered a localized stress?
stress dye to water pressure
416
What do you call the process of turning solid to gas, without passing the liquid state?
sublimation
417
Class I are explosive. Division 1.4 explosives are:
Substance and articles which have a present no significant hazard
418
An oxygen indicator can be used to determine if there is:
sufficient oxygen in a compartment to support life
419
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
420
No pulley block shall be used in hoisting or lowering unless clearly stamped with:
SWL
421
Damage to cargo caused by odors from other cargoes stowed in the same hold:
Tainting damage
422
The damage caused by cargoes giving off fumes or odors stowed in the same compartment with fine goods or foodstuff is called:
tainting damage
423
Packages containing dangerous goods shall be durably marked with the correct _____: (trade name alone should not be used)
Technical name
424
Packages containing dangerous goods shall be durably marked with the correct: (trade name alone should not be used)
technical name
425
LPG escaping from a tank barge would:
tend to settle on the water
426
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
427
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
428
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
429
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
430
A combustible gas indicator meter is calibrated to read in percentage of _____.
the lower explosive limit concentration
431
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
432
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
433
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
434
Before entry into a cargo tank which has contained a petroleum product:
the tank must be tested for sufficient oxygen
435
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
436
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
437
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
438
When planning to load an iron ore bulk cargo:
there may be a need to brace the adjacent structure
439
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
440
Which of the following is not an advantage of centrifugal pumps over reciprocating pumps?
They do not require priming for stripping
441
Which statement is TRUE concerning combustible gas indicators?
They do not work properly where there is a lack of oxygen
442
What is the purpose of the inert gas scrubber tower?
To cool the flue gases and remove most of the sulphur and soot particles
443
What is an explosion hazard when exposed to flame?
Toluene
444
Which of the following is an explosion hazard when exposed to flame?
toluene
445
Which begins when the tank is about 60% empty?
top wash
446
When planning to load a coal bulk cargo, you should:
treat it as potentially dangerous
447
Which type of cargo containment system categorized an LNG carrier?
Type "B" design
448
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
449
In LNG vessels, when leaking occurs, low temperature of LNG will result in rapid ____.
Vaporization
450
On passing from a warm climate to a cold climate the hold should be:
Ventilated
451
Bunker C and fuel oils are know as:
viscous oils
452
A small quantity of ethyl mercaptan is added to LPG to give it a characteristic:
Warning Odor
453
To safely enter a compartment where CO2 has been released from a fixed extinguishing system, you should _____.
wear a self-contained breathing apparatus
454
Cargoes that might leak from containers are called:
wet cargoes
455
When is a liquid considered to be "volatile"?
When its flashpoint is below 60 degree C (140 degree F)
456
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
457
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
458
Corrosive liquids are acids should have what kind of label?
White
459
Corrosives liquids and acids should have what kind of label?
white
460
Corrosive liquids and acids should have which kind of label?
White and black
461
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
462
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
463
Which molten substance is poured into the basket of a wire rope socket being fitted to the end of a wire rope?
Zinc
