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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 dischargingB.Gas pressures should be maintained at the highest permissible level throug
题目
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
相似问题和答案
第1题：
Which action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?
A.The tank must be gas freed
B.The tank must be ballasted
C.The tank must be vented to the atmosphere
D.The bypass valve must also be closed
第2题：
You are loading a cargo tank on your container ship. The tank displays the red label shown. Which statement is TRUE?
A.The tank contains propylene
B.The tank's volume is 1077 cubic feet
C.There are three tanks in the shipment
D.The tank contains an oxidizing material
第3题：
How does an inert gas system on a tanker function to prevent explosions in cargo tanks?
A.De-energizes the "charged mist" effect
B.Maintains a positive pressure on the vent header to cool the flammable vapors
C.Inert gas filters out the flammable vapors from the cargo tank spaces
D.Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit
第4题：
Inerting means ______．
A.The introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume
B.The introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume
C.The introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo
D.All of the above
第5题：
Which statement about entering into a tank which has been sealed for a long time is TRUE ________．
A.The tank should be tested only once to ensure the oxygen content is at least 14% before entry
B.The tank must be tested at frequent intervals to ensure that hazardous gasses have not regenerated
C.The tank need not be tested for oxygen content if it is ventilated for more than 24 hours
D.If the oxygen content tests at less than 12% you should wear an approved gas mask
第6题：
Which method is used to supply inert gas from a flue gas system to the cargo tanks?
A.Exhaust gas pressure from the stack
B.High capacity fan
C.Inert gas compressor
D.Natural aspiration
第7题：
Which statement about the dangerous cargo manifest，carried on a ship，is TRUE ________．
A.The manifest must be made up by the Master or other designated ship's officer
B.Shipments of hazardous and non-hazardous cargo may be listed on the manifest if they are destined for the same consignee
C.The manifest must be kept in a designated holder on or near the bridge
D.The type of label（s）required for each cargo must be indicated
第8题：
A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as ______.
A.dilution
B.displacement
C.precipitation
D.Either A or B
第9题：
______ shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions．
A.A load on top system
B.Direct line system
C.Circle line system
D.An inert gas system
第10题：
The deck water seal of the inert gas system ______．
A.Cools the inert gas and prevents soot from entering the cargo tanks
B.Acts as an emergency shutdown when inlet pressures exceed the safe working pressure
C.Prevents the backflow of hydrocarbon gasses into nonhazardous areas
D.Relieves sudden large overpressures in the system