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192 Cards in this Set

  • Front
  • Back
Coffer Dam
Narrow pace between adjacent water tight compartments
What is the largest Tanker?
The Jahre Viking
What was the first tanker?
The Gluckauf, which crashed on Fire Island in 1893
What is the difference between Dirty and Clean Oil?
Dirty oil is "black oil" and includes heavy oil, crude and asphalt.

Clean oil is "white oil" and includes gas, jet fuel and kerosene (thinks you can drink)
Name the type of tankers
Coastal Tankers: 16,500 DWT
General Purpose: 38,000 DWT
Medium Range: 38,000 – 50,000 DWT
Panamax: 50,000 – 80,000 DWT
AFRAmax: 80,000 – 125,000 DWT
Suezmax: 125,000 – 200,000 DWT
VLCC: 200,000 DWT
ULCC: 300,000 DWT
Name the types of Chemical Tankers
Type 1: Most hazardous
Type 2: Mostly Dangerous
Type 3: Non–hazardous
What are the pros of double hulls?
Environmental Protection
Protection against minor shell damage increased
Segregated ballast capacity
Stripping/ draining of cargo tanks more effective (well/sump vs. bell mouth)
What are the cons of double hulls?
Cost vs. protection
Salt water corrosion
Inadequate spacing against high energy collisions
Reduced Cargo carrying capacity
Fire/ explosion risks
Difficulty of gas freeing (tank entry)
Increased monetary cost for shipyard
Alternative technology
Economic disadvantages with phase in/ out schedule
Lack of proper maintenance on phased out vessels
Has the mid deck tanker been approved by the USCG?
No. It was developed in Japan as an alternative to meet the requirements of OPA 90 and IMO. (p. 70)
Coastal Tankers:
16,500 DWT
General Purpose:
38,000 DWT
Medium Range:
38,000 – 50,000 DWT
Panamax:
50,000 – 80,000 DWT
AFRAmax:
80,000 – 125,000 DWT
Suezmax:
125,000 – 200,000 DWT
VLCC:
200,000 DWT
ULCC:
300,000 DWT
When should we keep manifolds closed?
When there are no cargo transfer procedures being preformed.
what do valves control?
flow
What is direct piping?
this is characterized by 1 or more main lines oriented in a fore and aft direction from the cargo tanks to the pump room.
What is a bell mouth used for?
It's designed to minimize vortexing.
What is Vortexing?
A whirlpool effect due to cargo levels at the stripping stage.
What is a loop or main ring?
Another type of bottom piping system commonly seen on barges and dedicated carriers.
What is another name for crossover?
Mix Master and is piping used to interconnect different cargo systems or groups.
What is manifold?
It is the end of the line for deck piping.
What is another name for mechanical loading arm?
Chick sans
What flange is at the end of a manifold?
Blank Flange
Who sets the standards for flanges?
American National Standards Institute (ANSI) and OCIMF sets it internationally.
How many bolts on ANSI coupling? Non ANSI?
4 bolts for an 8 bolt hole. A bolt in every hole for non ANSI coupling.
What does a reducer look like?
(picture pending)
What is a blank flange?
A solid plate used to seal end of pipeline such as cargo manifold (picture pending)
What is a runaround?
Temporary piece of pipe or cargo hose used to interconnect cargo systems or groups.
What is a spectacle flange?
A flange used to segegate or isolate a pipeline
What is a drip pen?
Allows excess oil to drip from manifold. collects it so it doesn't contaminate environment.
What is a riser?
A pipe that transports liquid up from the cargo pump to the main deck. Not to be confused with mast riser.
What is a dresser coupling?
Used for connecting piping on board tankers as they provide the flexibility necessary to withstand stresses caused by expanding/ contracting during temperature changes.
What does a bullet vent look like?
A bullet (picture pending)
What does a PV vent look like?
Picture pending
What does a mast riser look like?
Picture pending
What kind of defects to take hose out of service?
Cracks, blistering, abrasions, flattening of hose, evidence of leaks, defects.
What are the maximum hose requirements?
1.5 times the Maximum Allowable Working Pressure (MAWP), or 150 PSI
Working pressure for liquid cargo hose?
100 psi
What hose is used for the widest range of industrial duties?
Stainless steel hose
Always check what when choosing a hose?
the Chemical compatible chart.
What are the advantages of a rubber hose?
rugged
smooth inner tube and allows for higher flow rate
good temperature resistance
What are the disadvantages of a rubber hose?
heavy in weight and cumbersome
inflexible
limited chemical resistance
What is the weakest link in a cargo tanker system?
The cargo hose is the weakest link in a cargo system.
What are the 4 types of hoses?
rubber hoses
composite
stainless steel
specialty hoses
Before you do any sort of cargo transfer what must happen?
Both parties (PIC's) must agree to the transfer (the dock and the ship or the ship and ship and the ship)
What are the types of piping on a tanker?
Fire foam
steam
fresh water
bunkers
What is the most common type of valve?
Globe valve.
A type of valve that incorporates a sliding gate to block fluid flow.
sliding gate
What is the purpose of the packing gland?
It seals the Gate valve so it doesnt leak
A valve named for their spherical body shape, and is the most common type of valve?
Globe Valve
Used when making a 90 degree turn
Angle Valves
Butterfly Valve
Disk or wafer creates a seal. Can be used as a shut off valve or throttling only in a vapor or gas pressure control. Good for low pressures. Prone to obstruction and rust.
Plug Valves
Back to ancient times, with Romans
Ball valves
any valve that checks flow by the seating of a ball valve – control consisting of a mechanical device for controlling the flow of a liquid.
Specialty Valves
include check valves (one way valves, relief valve, and pressure– vacuum relief valve)
What kind of valve do you find on a discharge side of the pump?
Check valve
What is the least reliable valve?
Check valve
What does a relief Valve do?
Allows cargo to go back to the suction side of the pump so you dont over pressurize the cargo pumping system.
What is the purpose to the flame screen?
Doesnt allow fire in, but allow gasses to escape
What are some of the valve malfunctions?
Broken or bent stem Sheared reach rod Improperly seated Worn seat Jammed open or closed Faulty valve indicator Leaking gland Improperly adjusted motor Foreign obstructions
PT How are pumps classified?
Kinetic or Positive Displacement
PT What are the categories of Kinetic pumps?
"Centrifugal

Vertical (ie Deepwell pump)


Submerged"

PT Define Cavitation
"formation of bubbles in a liquid or empty spaces in a pump.

(noise, heat, bubbles, high rmp and fluctuations)"

PT What should we look out for in a damaged pump?
"Seals (look for leaks)

Bearings (listen for noise)


Impeller (wear and tear)"

PT What is another name for a turbine pump?
A regenerative pump or peripherial pump
PT What is another name for a Deepwell pump?
A vertical – turbine pump
PT What type of pump is a Deepwell pump?
A centrifugal pump thus it requires prime.
PT What are advantages to the Framo pump system (they manufacture submerged pumps)?
"Unique stripping system

anti–rotational break so load through pump


no bottom piping"

PT What kind of condition is in slides 30 and 31?
"30 Suction head condition

31 Suction lift condition"

PT Booster Pumps?
If the shore tank is at a high elevation or far distance, then you acquire the assistance of this pump.
PT When a booster pump comes online what happens to the pressure on your ship when you're discharging?
It decreases
PT Booster pump aids with what type of system?
cargo system
PT What are types of positive displacement pumps?
"Rotary

Double acting


Reciprocating pump"

PT Can an Eductor pass the discharge rate in a positive displacement pump?
Yes
CT What is the permissable exposure limit for Benzine?
1 ppm (part per million)
CT What are the 3 broad categories or classification for tanker cargo?
"Petroleum liquids

Chemical liquids


Special liquids"

CT Identify organic chemicals
"Acetone

Vinyl Chloride


Acetic Acid


Styrene Monomer


Acrylonitrile


Aromatic Hydrocarbons( benzene, toluene, xylenes)"

CT What are some examples of Aromatic Hydrocarbons?
benzene, toluene, xylenes (Anything that ends in 'ene'. Petroleum products)
CT How can Crude Oil be described as?
As heavy or light depending on specific gravity
CT How can we transport a very viscous fluid?
By heating it up
CT What are the 3 refining processes and describe?
"Distillation – physical seperation through boiling

Cracking – splitting fractions into lighter fractions


Purification – process of removing impurities"

CT What are the two types of international classification for petroleum?
Volatile and non volatile
CT What are the two types of classification for petroleum according to the USCG?
Flammable (less than or equal to 80 degrees) & non flammable (greater than 80 degrees).
CT What are the U.S.C.G. Classification of Combustible Liquids?
"A, B, C, D, E"
CT Describe a Class A combustible liquid
"Flash Point: 80 F or below

Reid Vapor Pressure: 14 psi and above


Examples: Natural gasoline, Naphtha"

CT Describe a Class B combustible liquid
"Flash Point: 80 F or below

Reid Vapor Pressure: More than 8.5 but less than 14 psi


Examples: Most Commercial gasoline"

CT Describe a Class C combustible liquid
"Flash Point: 80 F or below

Reid Vapor Pressure: 8.5 psi and below


Examples: Most crude oils, aviation gasoline"

CT Describe a Class D combustible liquid
"Flash Point: Above 80 F but below 150 F

Reid Vapor Pressure: N/A


Examples: Kerosene, Commercial jet fuels"

CT Describe a Class E combustible liquid
"Flash Point: 150 F and above

Reid Vapor Pressure: N/A


Examples: Heavy Fuel, Lube oils, Asphalt"

CT What is the API standard temperature?
60 degrees
CT What is a Hydrometer?
An instrument used to measure density (can be used to measure dense cargo or water salinity through density)
CT What does a hygrometer do?
Measures humidity
CT How many gallons in a barrel?
42
CT What is viscosity?
A measure of internal friction of a liquid or its resistance to flow
CT Define pour point
the lowest temperature at which the liquid will remain a fluid
CT Where can you get info regarding your cargo?
"MSDS

Chemical Data Guide


CFR's


CHRIS manual


Chemical Codes – IMO


Pocket Guide to Chemical Hazards


Tanker Saftey Guide Data Sheets from ICS"

CT What can we do to secure the pump room?
"Keep it free of leaks

Keep vents operational


Frequent rounds for potential leaks


Frequent rounds for flammable vapors and ignition"

CT What would count as oxygen deficiency?
Anything less than 19.5% oxygen
CT How much oxygen and nitrogen is in the atmosphere?
21% oxygen, 78% nitrogen
V Flame screen?
lets gasses escape?, keep flames out
V What does a bullet vent or PV vent look like?
A bullet
V Who regulates design construction and operation of vapor recovery systems?
Coast Guard
V What prevents tanks from overpressurization?
PV vents in each individual tanks, liquid breaker, mast riser
V What must we connect up before we connect a hose?
Connect bonding cable
V What is written on a vapor recovery line?
Vapor.
V High level / Overfil alarm level?
95% / 98%
V How must alarms be?
Audible and Visible
V What is intrinsically safe?
No ignition source if vapors in area
V What kind of loading do static accumulators require?
Slow load
IG Mixture of Oxygen in IG generator and tank?
5% or less in generator 8% or less in tank
IG What is a deck water seal?
the principal barrier; a water seal is fitted that permits inert gas to be delivered to the deck main but prevents any backflow of cargo gas or hydrocarbon gas into the non–hazardous areas,
IG What is the main propulsion on modern vessels?
Diesel.
IG Where are flue gas systems found?
Steamships
IG How do we minimize soot from cargo tanks?
With the scrubber
IG What protects our IG system form fire and explosion?
Deck water seal.
IG How do we differentiate the wet type tank, from a semi wet from a dry type tank?
The wet type has no additional tank
Semi wet has tank on right side
dry type has tank on the left
IG What type of liquid is in the liquid breaker?
Antifreeze (Freshwater glycol mixture)
IG What does the scrubber do?
It cleans and cools the gas.
IG What does the deck seal do?
Prevent backflow of hydrocarbon gasses.
IG What is the percentage of hydrocarbons to stay out of the flammable range?
Less than 2%
CC Where is the volume or quantity noted?
Bill of lading or certificate of quantity
CC Who owns the cargo?
The charterer.
CC When does the point of transfer occur?
When the cargo passes hose and manifold into the terminal.
CC What type of measurement equipment on–board vessel?
Open tank gauging tapes
gauging bobs
water indicating paste
product indicating paste
thermometers
closed gauging devices
temperature probes
sample bottles
sample bottle container assembly
CC What could affect our cargo measurement?
Structure of the cargo tank (location of gauging point)
Internal Framing members
Deadrise
Turn of the bilge
Cargo pipelines
CC What is an ullage?
Measurement from the top of the liquid to the top of the tank.
CC What is innage?
The amount of the liquid in the tank (top of liquid to bottom of the tank)
CC If we're going around checking for water, what are we doing?
It is a water cut, or we're theiveing the tanks
CC Slide 20, Tank Gauging
ullage (top)
Innage (inside)
Thievage/ watercut (water in tank)
CC What's another name for calibration tables?
"Strappings"
CC What kind of correction in calibration (strappings)?
list or trim
CC What kind of repeat–ability should be in the calibration (strappings) tables?
All the measurements should be the same
CC What is easier to take off, list or trim?
List
CC What is a line sample?
Normally taken at a manifold at the initial start of cargo ops
CC running sample?
In slide
CC Composite sample
In slides
CC One foot sample?
Initial loading stopped, await lab results before resuming
CC Cargo calculation formula
Check slide "Cargo Calculations" Convert gross barrels to net barrels.

Look at table (API and Temperature) for conversion rate and multiply conversion rate X Gross barrels
CC Where do we find list and trim corrections?
Calibration tables
CC What is trim?
Difference between forward and after draft
CC Fresh water allowance?
We measure density with hydrometer and the number of inches.... (look at slide)
CC Hogging?
Weights at fore and aft.
CC Can vessel withstand more stresses in harbor or sea?
harbor
CC Sagging?
Weights centered in center of vessel. (U shape)
CC What is the formula to find how many barrels of oil you expect to load?
[Cargo barrels] – [(Cargo barrels)(coefficient of expansion)(change in temp)]

Coefficient of expansion – .0006 Gasoline
Coefficient of expansion – .0005 Deseil Oil
ES What is a static accumulator
a liquid which retains an electrostatic discharge
ES static accumulator examples
Natural gasoline's, Kerosene's, White spirits, Motor and aviation gasoline's, Jet fuels, Naphtha's, Clean diesel oils, Heating oils, Lubricating oils
ES 3 stages of static accumulation
charge separation, charge accumulation, electrostatic discharge
ES How long is the rest period after loading to protect against electrostatic discharge?
30 min
ES What's a substitute for a bonding cable?
Insulating flange
ES When cars run, their tires and bodies are usually charged by _______. For gasoline tankers, if the accumulated charge is large enough, _______can be produced and _________ will occur if gasoline vapor is ignited. Those metal chains conduct the charge on the bodies of tankers to the _______ and avoid the danger.
Friction, sparks, explosion, ground
TO What is the most critical point of the cargo operation?
Topping off.
TO What is overfill?
98.5%
TO What is a high level alarm?
95%
TO How much prior notice must be given to terminal representative before topping off?
As much notice as possible: Must give shore/terminal plenty of advanced notice – 30/15/5 minutes to completion – rate change – standby valve/pump.
PR Most common oil spills are caused by?
Human error
PR What is the weakest link in a cargo transfer, and what should we never do during transfer?
never close manifold at full pressure of the dock, and the cargo hose is the weakest link
PR Who is responsible for bunkering?
2nd mate
PR Who's the first person to notify in case of a spill?
The US Coast Guard
PR What are the 6 annexes from MARPOL?
Annex I = Regulation for the prevention of pollution by oilAnnex II = Regulations for the control of pollution by noxious liquid substance
Annex III = Regulations for the prevention of pollution by harmful substances carried in package form
Annex IV = Regulations for the prevention of pollution by sewage from ships
Annex V = Regulations for prevention of pollution by garbage from ships
Annex VI = Regulations for the prevention of air pollution from ships
PR Who has to sign the oil record book?
The Master
PR How long is the IOPP certificate good for?
5 years
PR If you're carrying a noxious liquid substance (Annex II)?
Cargo record book
PR Where is Annex I cargo recorded?
oil record book
PR The manual should contain the following info and instructions:
A list of NLS cargoes the vessel is certified to carry and cargo specific information

A list of cargo tanks and noxious liquid substances that may be carried


A description of the equipment and arrangements in the cargo system including the following:
PR Special Areas (Annex 1)?
North Sea– Baltic Sea
– Mediterranean Sea
– Black Sea
– Red Sea
– Gulfs area
– Antarctica
– Caribbean
PR special areas Annex II noxious liquid substance?
Black Sea and the Baltic Sea
PR What's the maximum quantity amount we can dispose per oil content monitor?
15 ppm (15 nm from land and rate of 30 liters per nm)
TC What are shadowed areas?
Some areas shielded from spray due to the structure of the tank.
TC What's the normal cycle period?
30 min.
TC What are some advantages of a fixed machine?
Greater throughput and jet lengthBetter for larger cargo tanks
Reduction in labor and manpower required for portable units
Easier to control tank atmosphere (closed system)
Programmable and non–programmable units
TC What is the normal operating pressure for crude oil washing system?
110 – 150 psi
TC What are some of the advantages for crude oil washing?
Saves time as the “COW” can commence early in the discharge operationsNewly exposed crude is removed before it can cool and solidify
Washing in stages reduces the use of stripping system.
TC What are the methods of crude oil washing?
Bleed–off method

Dedicated pump method (with recycled oil)
TC How to prevent electrostatic discharge when washing tanks?
When your planning to use the crude oil washing system on your tank ship – the tank used as the source for the tank cleaning machines should be de–bottomed for at least one meter to prevent electrostatic buildup in the tanks*****
TC Slop tank requirements
On new construction, tank vessels under 70,000 dwt must have one slop tank and over 70,000 dwt have two slop tanks.
TC Supplemental methods of cleaning?
Hand hosing – areas of tanks where machines had missed can be spot cleaned with a 1 ½ inch hose under pressure

Mucking – removal of scale, sediment, sludge, and other physical residue. Proper protective gear required


Steaming – sometimes necessary to steam tanks as part of the cleaning process. Tanks need to be inerted or gas free.


Cleaning Chemicals – spraying, injecting, or re–circulating. Toxicity and safety precautions need to be followed
TC Different tank coatings?
Epoxy coatingCoal–tar epoxy
Zinc coatings
Polyurethane
Stainless Steel
GFM How long is the tank testing method good for?
The time youre taking it
GFM How do I know the tank is gas free?
It has to be properly tested
GFM What does an air mover or air horn look like?
Like a horn (slide 8)
GFM What is an enclosed space?
is defined as one with restricted access that is not subject to continuous ventilation, and in which the atmosphere may be hazardous due to the presence of hydrocarbon, toxic or inert gas, or oxygen deficiency. Such spaces include, but are not limited to, cargo, slop, ballast, water, fuel, lube oil, waste oil, and sewage tanks, cofferdams, duct keels, void spaces, trunkings, pipelines, inert gas scrubbers and deck seals, and any other item of machinery or equipment that is not routinely ventilated and entered, such as boilers and main engine crankcases. A pumproom is not, therefore, an enclosed space as such, although entry precautions, are required.
GFM What is the purpose of an oxygen indicator or an oxygen analyzer?
An Oxygen Indicator is an instrument that measures the amount of oxygen in a confined space.
GFM What indicates a concentration of flammable gas is over the flammable range?
If the PIC is testing a tank that contained gasoline and during the test, the sample caused the needle to move rapidly to 100 on the dial and then fall to zero – this indicates that the concentration of flammable gas is over the flammable range
GFM Benzine permissible exposure limit?
1ppm
GFM Who certifies the marine chemist?
National Fire protection Association
GFM What does a tank access point look like?
Slide 57
GFM What is the standby person's role?
Monitor the person in the tank