单选题What alarm is NOT found on an inert gas system? （）ALow oxygen alarmBLow pressure alarmCScrubber high water level alarmDDeck seal low water alarm
单选题
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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相关考题：
How does an inert gas system on a tanker function to prevent explosions in cargo tanks?A.De-energizes the "charged mist" effectB.Maintains a positive pressure on the vent header to cool the flammable vaporsC.Inert gas filters out the flammable vapors from the cargo tank spacesD.Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit
Which method is used to supply inert gas from a flue gas system to the cargo tanks?A.Exhaust gas pressure from the stackB.High capacity fanC.Inert gas compressorD.Natural aspiration
You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take?A.Cut in another IG fan to increase gas flowB.Open the pressure control valve until the pressure increasesC.Open the tank isolation valve to the fully open positionD.Reduce the pumping rate
Which of the listed functions is the purpose of a gas scrubber in an inert gas generation system ________．A.Cools the inert gasB.Maintains the oxygen content at 5% by volumeC.Drains off static electricity in the inert gasD.Maintains the water seal on the gas main
After the initial cleaning of flue gas in an inert gas system the gas is passed through what device for final cleaning ________．A.ScrubberB.DemisterC.Deck water sealD.Final filter
The blowers of an inert gas generation system aboard a tanker，will be automatically secured if ______．A.Normal water supply at the water seal is lostB.The temperature of the inert gas being delivered to the cargo tanks is more than 150℉C.The cooling water supply to the scrubbers is lostD.All of the above
The deck water seal of the inert gas system ______．A.Cools the inert gas and prevents soot from entering the cargo tanksB.Acts as an emergency shutdown when inlet pressures exceed the safe working pressureC.Prevents the backflow of hydrocarbon gasses into nonhazardous areasD.Relieves sudden large overpressures in the system
The fresh air intake of the inert gas system ______，A.Prevents the flue gas from falling below 3% content of oxygenB.Allows the inert gas piping to be used for gas freeing the tanksC.Opens when there is excessive vacuum on the deck water sealD.Enables outside air to mix with and cool hot flue gasses
What is NOT a function of the scrubber of an inert gas system ________．A.Cool the inert gasB.Remove particulate matter like sootC.Maintain pressure in the tanksD.Remove chemical impurities
What is the major function of the deck water seal in an inert gas system ________．A.Relieve excessive overpressures in the systemB.Isolate hazardous from nonhazardous areasC.Prevent the flow of inert gas into closed tanksD.Remove any leftover water or soot after the gas has been scrubbed
What alarm is NOT found on an inert gas system ________．A.Low oxygen alarmB.Low pressure alarmC.Scrubber high water level alarmD.Deck seal low water alarm
Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure ______.A.nitrogenB.oxygenC.carbon dioxideD.water vapor
单选题Each inert gas system gas main must have an automatic shut down valve at the outlet of the gas production plant. This valve must close automatically upon（）.Acargo pump failureBblower failureCdeck seal low water levelDlow inert gas temperature
单选题The fresh air intake of the inert gas system（）.Aprevents the flue gas from falling below 3% content of oxygenBallows the inert gas piping to be used for gas freeing the tanksCopens when there is excessive vacuum on the deck water sealDenables outside air to mix with and cool hot flue gasses
单选题After the initial cleaning of fule gas in an inert gas system is passed through what devoce for final cleaning?（）.AScrubberBDemisterCDeck water sealDFinal filter
单选题After the initial cleaning of flue gas in an inert gas system the gas is passed through what device for final cleaning?（）.AScrubberBDemisterCDeck water sealDFinal filter
单选题The deck water seal of the inert gas system（）.Acools the inert gas and prevents soot from entering the cargo tanksBacts as an emergency system shutdown when the inlet pressures exceed the safe working pressure in the hazardous zoneCprevents the backflow of hydrocarbon gasses into nonhazardous areasDrelieves sudden large overpressures in the system
单选题Upon arrival at the discharging port, the inert gas system is（）.Aturned onBturning onCturn onDto turn on
单选题What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）AThe tank must be gas freedBThe tank must be ballastedCThe tank must be vented to the atmosphereDThe bypass valve must also be closed
单选题You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take? （）ACut in another IG fan to increase gas flowBOpen the pressure control valve until the pressure increasesCOpen the tank isolation valve to the fully open positionDReduce the pumping rate
单选题Which method is used to supply inert gas from a flue gas system to the cargo tanks?（）AExhaust gas pressure from the stackBHigh capacity fanCInert gas compressorDNatural aspiration
单选题SOLAS regulations require that the inert gas system shall be capable of delivering inert gas with an oxygen content of not more than what percentage?（）A5%B8%C6%D3%
单选题What alarm is NOT found on an inert gas system? （）ALow oxygen alarmBLow pressure alarmCScrubber high water level alarmDDeck seal low water alarm
单选题The purpose of the deck seal in an inert gas system is to prevent（）.Aflammable vapors from entering machinery spaceBflue gas escaping to atmosphereCinert gas escaping to atmosphereDair entering inert gas system
单选题Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure（）.AnitrogenBoxygenCcarbon dioxideDwater vapor
单选题The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.AfilterBcoolerCscrubberDpurifier
单选题The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）.Anormal water supply at the water seal is lostBthe temperature of the inert gas being delivered to the cargo tanks is more than 150°FCthe cooling water supply to the scrubbers is lostDall of the above
单选题The deck water seal of the inert gas system（）.Acools the inert gas and prevents soot from entering the cargo tanksBacts as an emergency shutdown when inlet pressures exceed the safe working pressureCprevents the backflow of hydrocarbon gasses into nonhazardous areasDrelieves sudden large overpressures in the system