甲类船长(船舶货运技术)航海英语练习1
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Your tanker is carrying a cargo of styrene．Which of the following is NOT a requirement for carriage of this cargo ________．
- A.P/V valves with galvanized parts must be replaced
- B.Authorization to carry styrene must be endorsed on the Certificate of Inspection
- C.You must have a Certificate of Inhibition provided by the shipper
- D.The cargo tank heating coils must be blanked off
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You are planning to use the crude oil washing system on your tanker．What is required to prevent electrostatic buildup in the tanks ________．
- A.The portable machines should be set at the proper drop for the first wash before the fixed machines are used
- B.The tank used as the source for the tank cleaning machines should be debottomed for at least one meter
- C.The inert gas system must reduce the oxygen content in the tank to at least 18%
- D.The fixed machines must be operated simultaneously with the portable machines to equalize the electrostatic potential
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Your tanker is fully loaded，and you find that she is down slightly by the head．To adjust the trim，you may ______．
- A.Add ballast aft
- B.Load more cargo aft
- C.Shift cargo aft
- D.All of the above
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You are on a vessel that carries liquefied gasses in bulk．The person on watch is required to have what information about the cargo easily accessible ________．
- A.Port of loading
- B.Exact quantity on board
- C.Name and address of consignee
- D.Firefighting procedures
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You are planning to use a crude oil washing system．What precaution must be taken with the tank as the source for the washing machines ________．
- A.It must be debottomed and the level lowered by at least one meter
- B.The oil in the source tank must be sampled for compatibility
- C.The source tank must have been crude oil washed at least once in the past 150 days
- D.The inert gas system must lower the oxygen content to a maximum of 12% oxygen in the tank
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You are on a tanker discharging oil．When all of the oil that the main cargo pumps can handle is pumped out of a tank，the remainder is ______．
- A.Stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumps
- B.Stripped to one tank and then pumped out with the main pumps
- C.Stripped out and pumped directly ashore after all the tanks have been emptied by the main pumps
- D.Gravitated to the centers from the wings and pumped out with the main pumps
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Your tanker is loaded down to her marks，and you find that she has too much trim by the stern．To adjust the trim，you may ______．
- A.Add ballast forward
- B.Load more cargo forward
- C.Shift bunkers forward
- D.All of the above
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You are on a cargo vessel carrying toluol in bulk in portable tanks．Which is a requirement for pumping the toluol ________．
- A.Hose connections to the tank must be made with a minimum of three bolts
- B.There must be water pressure on the fire main
- C.You must shut down if another vessel comes alongside
- D.If transferring at anchor，you must display a red flag by day and a red light at night
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You are on a multiple-product chemical tanker with orders to load diethylamine．What is NOT a requirement for transporting this cargo ________．
- A.You must have two toxic vapor detectors or the pumproom must meet special requirements
- B.Each crew member must be provided with an emergency escape breathing apparatus
- C.A person taking cargo samples must wear protective clothing
- D.If you are also carrying allyl alcohol，the venting systems must be segregated
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You are on a tanker designed to carry molten sulfur．Which statement is TRUE ________．
- A.There must be two portable toxic vapor detectors on board
- B.The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volume
- C.Cargo temperature may be taken by portable thermometers
- D.The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them
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Which statement is TRUE concerning insulating flanges ________．
- A.They should be inspected and tested periodically to ensure that the insulation is clean and in good condition
- B.Switching off a cathodic protection system may be substituted for using an insulating flange
- C.The measured resistance value after installation should be less than 1，000 ohms
- D.After the insulating flange is installed，hot work may be performed on deck
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Which step is NOT generally taken when gas-freeing a tank ________．
- A.Washing the tank interior with sea water
- B.Application of degreasing solvents
- C.Removal of corrosion products and sludge
- D.Fresh air ventilation
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Which statement is TRUE concerning combustible gas indicators ________．
- A.One sample of air is adequate to test a tank
- B.They do not work properly where there is a lack of oxygen
- C.They will detect a lack of oxygen
- D.They are calibrated to read the percentage chance of explosion
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Which statement is TRUE concerning inert gas systems on tankers ________．
- A.Flue gases from the ship's boilers are used in some systems
- B.The gas is helium
- C.Using the system accelerates the rusting of the tanks
- D.All of the above
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Which statement is TRUE concerning deep well self-priming pumps ________．
- A.When loading oil cargo，it is always loaded via the discharge line through to the pump until the tank is topped off
- B.Stripping systems are generally eliminated for the purposes of cargo handling
- C.In recent years deep well pumps have become increasingly unpopular in product tankers and medium size crude ships
- D.There is no danger of damaging the pump from overheating
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Which statement is TRUE concerning buoyant work vests aboard tankers ________．
- A.They may be worn while working on deck but not while working over the side
- B.They must be used only under supervision of a designated ship's officer
- C.They will be accepted for up to 10% of the required life preservers
- D.They may be worn during drills
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Which statement is TRUE concerning cargo hose on tank barges ________．
- A.Cargo hose must be able to withstand the shut-off head plus the static head of the cargo pump
- B.Cargo hose must be able to withstand the static head of the cargo pump but no less than 100 psi
- C.Cargo hose must be able to withstand the shut-off head less the static head of the cargo pump but no less than 100 psi
- D.Cargo hose must be able to withstand at least 150 psi
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Which statement about the inert gas system is TRUE ________．
- A.Boiler soot blowers should never be used when the IG system is operating
- B.The boiler will produce the best quality of flue gas for the IG system when the boiler load is very light
- C.The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very light
- D.Flue gas with excessive oxygen content is de-oxygenated in the scrubber
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Which statement about inert gas pressures in a cargo tank is TRUE ________．
- A.The pressures of the inert gas in the tank may create excessive pressure at the pump while discharging
- B.Gas pressures should be maintained at the highest permissible level throughout the discharging process
- C.High gas pressures may cause pyrophoric oxidation in the tank
- D.High gas pressures may cause loss of suction when stripping
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Which spaces are required to be segregated from cargo tanks carrying grades A，B，C，or D cargoes ________．
- A.Pump rooms
- B.Enclosed deck spaces
- C.Cofferdams
- D.Navigation spaces
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Which product is most likely to accumulate static electricity ________．
- A.Crude oil
- B.Hard asphalt
- C.Lubricating oil
- D.Residual fuel oil
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Which of the following product（s）would be classified as grade E ________．
- A.Gasoline
- B.Bunker C
- C.Kerosene
- D.All of the above
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Which of the following may be used in cleaning up an oil spill without the permission of governmental authorities ________．
- A.Straw and Skimmers only
- B.Skimmers and Chemical dispersants only
- C.Straw and Chemical dispersants only
- D.Straw，Skimmers and Chemical dispersants
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Which instrument is suitable for determining the presence of explosive concentrations of fuel oil vapors in tanks ________．
- A.A flame safety lamp
- B.A combustible gas indicator
- C.A liquid cargo meter
- D.All of the above
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When the inert gas pressure is being ______ in the cargo tanks，particular attention should be paid to obtaining an oxygen concentration．
- A.topped up
- B.braced
- C.tommed down
- D.shored
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When removing the cap from a sounding tube on a ship，the sound of air escaping indicates the tank ______．
- A.Is full
- B.May be partially flooded
- C.Level has dropped
- D.Is completely flooded
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When taking soundings on a ship，coating the tape with chalk helps to ______．
- A.Better identify the correct reading
- B.Show the depth of any water in an oil tank
- C.Make the tape roll easier
- D.Reduce possibility of sparks
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When planning the loading or discharging of a VLCC（100，000 DWT+）what is the most important consideration ________．
- A.Draft and trim
- B.Limits of the bending moments
- C.Rate of discharging
- D.Rate of loading
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When referring to quantity of barite in a P-tank，ullage is the ______．
- A.Distance of the barite surface above the tank bottom
- B.Percentage of barite in the tank
- C.Distance of the barite surface below the tank cover
- D.Total weight of barite in UPC（ullages per centimeter）
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When loading a tanker，you should ______．
- A.load only one tank at a time
- B.keep the seamen on watch on standby in the mess room
- C.keep a strain on the loading hoses
- D.close valves by closing them down，reopening one or two turns，and re-closing
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When hooking up a cargo hose to your vessel's manifold，you should use a（n）______．
- A.International shore connection
- B.Insulating flange or single length of non-conducting hose
- C.Self-contained breathing apparatus
- D.Oxygen analyzer
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When displacement increases，the free surface corrections for slack tanks ______．
- A.increase
- B.decrease
- C.are directly proportional
- D.remain unchanged
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When flammable liquids are handled in a compartment on a vessel，the ventilation for that area should be ______．
- A.operated continuously while vapors may be present
- B.operated intermittently to remove vapors
- C.available on standby for immediate use
- D.shut down if an explosive mixture is present
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When bunkering is complete，the hoses should be ______．
- A.Cleaned internally with a degreaser
- B.Washed out with hot soapy water
- C.Drained，blanked off，and stored securely
- D.Stowed vertically and allowed to drain
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When a tank is to be gas freed after washing，the concentration of hydrocarbon vapour should be reduced by purging the inerted cargo tank with ______．
- A.the oxygen
- B.the gas
- C.the inert gas
- D.the hydrocarbon vapour
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When a non-volatile cargo is carried in a tank that has not been previously gas freed，then that tank shall ______．
- A.be purged with hydrocarbon gas prior to loading
- B.be gas-freed after loading operations
- C.not be maintained in an inert condition
- D.be maintained in an inert condition
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What refers to the depth of a petroleum product in a tank ________．
- A.Innage
- B.Outage
- C.Thievage
- D.Ullage
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What will be accepted as the shipping papers for an unmanned tank barge but will not be accepted if the tank barge is manned ________．
- A.Bill of Lading
- B.Logbook entry
- C.Manifest
- D.Shipping document
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What material is allowed in construction of the hull of a vessel with an integral diesel fuel tank ________．
- A.Steel or aluminum
- B.Sandwich style fibreglass with a natural rubber core
- C.Copper-nickel or copper silicon alloys
- D.Any or all of the above
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What is the purpose of pressure-vacuum relief valves ________．
- A.Regulation of discharge pressure from cargo pumps
- B.Maintaining constant velocity in cargo lines
- C.Regulation of suction head on cargo pumps
- D.To maintain a tank or void at atmospheric pressure
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What is the purpose of the relief valve of a cargo pump ________．
- A.Provides for the removal of vapors
- B.Allows two or more tanks to be filled at the same time
- C.Provides for the emergency shutdown of the pump
- D.Permits the return of cargo to the suction side of the pump
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What is the major function of the deck water seal in an inert gas system ________．
- A.Relieve excessive overpressures in the system
- B.Isolate hazardous from nonhazardous areas
- C.Prevent the flow of inert gas into closed tanks
- D.Remove any leftover water or soot after the gas has been scrubbed
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What is NOT required to be contained in the oil transfer procedures ________．
- A.A line diagram of the vessel's oil transfer piping
- B.The number of persons on duty during oil transfer operations
- C.Any special procedures for topping off tanks
- D.The location and capacity of all fuel and cargo tanks on the vessel
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What is NOT listed as a synonym for crude oil in the Chemical Data Guide ________．
- A.Rock oil
- B.Mineral oil
- C.Seneca oil
- D.Earth crude
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What is NOT accepted as the required shipping papers on a manned and loaded tank barge ________．
- A.Bill of Lading
- B.Manifest
- C.Shipping document
- D.Logbook entry
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What is NOT classified as a flammable liquid ________．
- A.Methyl alcohol
- B.Heptane
- C.Mineral spirits
- D.Iso-Hexane
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What is NOT a requirement for the safe and effective use of a crude oil washing system ________．
- A.Strip all tanks and remove the bottom residue
- B.Use an inert gas system while washing tanks
- C.Use portable washing machines to reach areas obscured by structural members in the tanks
- D.Debottom the tank used as the source for the tank cleaning machines
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What is NOT a requirement of cargo piping installed in tank vessels carrying grade D or E cargo ONLY ________．
- A.The cargo piping system shall be fixed
- B.Flanged joints shall be used for pipe sizes exceeding 2 inches in diameter
- C.Piping through bunker spaces may be run through a pipe tunnel
- D.Connections at bulkheads must be made so that the plating does not form part of a flanged joint
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What is NOT a grade E product ________．
- A.Dioctyl-phthalate
- B.Gasoline
- C.Formic acid
- D.Creosote coal tar
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What is NOT a function of the scrubber of an inert gas system ________．
- A.Cool the inert gas
- B.Remove particulate matter like soot
- C.Maintain pressure in the tanks
- D.Remove chemical impurities
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What is LEAST likely to cause ignition of fuel vapors ________．
- A.Static electricity
- B.An open running electric motor
- C.Loose wiring
- D.Explosion proof lights
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What is classified as a combustible liquid ________．
- A.Acetaldehyde
- B.Ethyl alcohol
- C.Carbon tetrachloride
- D.Tetramethylene glycol
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What is a wet cargo ________．
- A.A liquid cargo carried in the deep tanks
- B.A canned or bottled liquid such as beer
- C.A cargo that contains hygroscopic moisture
- D.A cargo particularly susceptible to damage by moisture
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What is a requirement for remote manual shutdown stations for internal combustion engine driven cargo pumps on tank barges ________．
- A.They must be conspicuously marked
- B.They must be located at least 10 feet from the engine
- C.There must be at least two such shutdown devices
- D.The valve rods shall be fitted with stuffing boxes
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To ensure proper seating when closing a valve on a tank，the valve should be ______．
- A.Set up as tight as possible by hand
- B.Set up tight using a valve wrench
- C.Closed，opened a half turn，and then closed
- D.Closed against the stop and the locking pin inserted
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What entry on a dangerous cargo manifest concerning the classification of a cargo is correct ________．
- A.Class 8
- B.Class 3 - flammable liquid
- C.Division 2.2 - nonflammable gas
- D.All of the above are correct
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What could result in an incorrect oxygen concentration reading on the oxygen indicator ________．
- A.Exposure to carbon dioxide for no more than 1 minute
- B.Exposure to carbon dioxide for more than 10 minutes
- C.Exposure to a very low concentration of sulfur dioxide for no more than 2 minutes
- D.None of the above
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What best describes for how long a gas-free test is good ________．
- A.For as long as is indicated on the gas-free certificate
- B.For the instant that it is made
- C.Until valves in line with the tank or compartment are reopened
- D.Until changes in temperature or pressure affect the vapor content in the space
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What alarm is NOT found on an inert gas system ________．
- A.Low oxygen alarm
- B.Low pressure alarm
- C.Scrubber high water level alarm
- D.Deck seal low water alarm
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Valves on steam-smothering lines to cargo tanks shall be set with ______．
- A.The master control valve shut and valves to individual cargo tanks shut
- B.The master control valve open and valves to individual cargo tanks shut
- C.The master control valve shut and valves to individual cargo tanks open
- D.All valves open
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What best describes benzene ________．
- A.Clear colorless liquid with an acrid odor
- B.Clear colorless liquid with an aromatic odor
- C.Brownish liquid，odorless
- D.Brownish liquid，with an acrid odor
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Using an inert gas system on a tanker has which advantage（s）________．
- A.Provides for faster loading
- B.Lowers oxygen content in the tank
- C.Provides better fuel economy
- D.All of the above
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Upon arrival at the discharging port，the inert gas system is ______．
- A.Turned on
- B.Turning on
- C.Turn on
- D.To turn on