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

题目

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.nitrogen

B.oxygen

C.carbon dioxide

D.water vapor

相似考题

1.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

2.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

3.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

4.A vessel in ocean service that does not have an approved means of processing oily bilge slops or oily ballast must have ______.A.a fixed piping system for ballast discharge to a reception facilityB.a discharge outlet for the ballast system on each side of the weather deckC.one portable adapter for a shore connection to the ballast lineD.All of the above

更多“Each ship having an inert gas system must have a portable instruments to measure concentra ”相关问题

  • 第1题：

    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


    正确答案：C

  • 第2题：

    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


    正确答案：B

  • 第3题：

    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（）.
    A

    cargo pump failure

    B

    blower failure

    C

    deck seal low water level

    D

    low inert gas temperature


    正确答案： C
    解析： 暂无解析

  • 第4题：

    单选题
    The fresh air intake of the inert gas system（）.
    A

    prevents the flue gas from falling below 3% content of oxygen

    B

    allows the inert gas piping to be used for gas freeing the tanks

    C

    opens when there is excessive vacuum on the deck water seal

    D

    enables outside air to mix with and cool hot flue gasses


    正确答案： D
    解析： 暂无解析

  • 第5题：

    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?（）.
    A

    Scrubber

    B

    Demister

    C

    Deck water seal

    D

    Final filter


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    Before operating a non-oceangoing ship greater than 100 gross tons it must have a fixed piping system to discharge oily mixtures ashore. This system must include（）.
    A

    approved oily-water separating equipment

    B

    a fixed or portable containment system at the shore connection

    C

    a spare pump in case the main pump is inoperative

    D

    at least one outlet accessible from the weather deck


    正确答案： B
    解析： 暂无解析

  • 第7题：

    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?（）
    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


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    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


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    The purpose of the deck seal in an inert gas system is to prevent（）.
    A

    flammable vapors from entering machinery space

    B

    flue gas escaping to atmosphere

    C

    inert gas escaping to atmosphere

    D

    air entering inert gas system


    正确答案： D
    解析： 暂无解析

  • 第10题：

    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（）.
    A

    nitrogen

    B

    oxygen

    C

    carbon dioxide

    D

    water vapor


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.
    A

    5% or less

    B

    10% or less

    C

    15% or less

    D

    20% or less


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    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


    正确答案： B
    解析： 暂无解析

  • 第13题：

    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


    正确答案：A

  • 第14题：

    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


    正确答案：A

  • 第15题：

    单选题
    During loading and discharging operations，in addition to when the cargo tanks have been properly filled，each inert gas system must be capable of maintaining a minimum gas pressure of（）.
    A

    150 millimeters of water pressure

    B

    125 millimeters of water pressure

    C

    100 millimeters of water pressure

    D

    75 millimeters of water pressure


    正确答案： A
    解析： 暂无解析

  • 第16题：

    单选题
    Which of the following represents the maximum percent of oxygen by volume required to be achieved by a ship’s inert gas system, prior to the commencement of crude oil tank washing?（）
    A

    6%

    B

    8%

    C

    10%

    D

    12%


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    Each hand portable，semi-portable and fixed fire extinguishing unit on a ship must be tested and inspected at least once every（）.
    A

    six weeks

    B

    six months

    C

    twelve months

    D

    two years


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    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 system shutdown when the inlet pressures exceed the safe working pressure in the hazardous zone

    C

    prevents the backflow of hydrocarbon gasses into nonhazardous areas

    D

    relieves sudden large overpressures in the system


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    A vessel in ocean service that does not have an approved means of processing oily bilge slops or oily ballast must have（）.
    A

    a fixed piping system for ballast discharge to a reception facility

    B

    a discharge outlet for the ballast system on each side of the weather deck

    C

    one portable adapter for a shore connection to the ballast line

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第20题：

    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?（）
    A

    5%

    B

    8%

    C

    6%

    D

    3%


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）.
    A

    portable ventilation system

    B

    flame safety lamp

    C

    self-contained breathing apparatus

    D

    gas mask


    正确答案： D
    解析： 暂无解析

  • 第22题：

    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（）.
    A

    filter

    B

    cooler

    C

    scrubber

    D

    purifier


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    A ship must have a self-contained breathing apparatus to be used as protection from gas leaking from a refrigeration unit. To meet this requirement，you may use（）.
    A

    a gas mask certified by the Mine Safety and Health Administration

    B

    the same self-contained breathing apparatus required with the fireman's outfit

    C

    an oxygen breathing apparatus，provided that the device has been inspected within three years

    D

    a portable ventilation system that will provide a complete change of air every three minutes


    正确答案： A
    解析： 暂无解析

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