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Neon is an inert gas. It will not combine chemically with anything.()
A.An inactive
B. an active
C. an important
D.a useful
参考答案
更多 “ Neon is an inert gas. It will not combine chemically with anything.() A.An inactiveB. an activeC. an importantD.a useful ” 相关考题
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Once the TCP connection is established, which message type initiates the BGP peering process?()
A. OpenB. ActiveC. UpdateD. Notification
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Which message is used to transport routing information between BGP peers?()
A. OpenB. ActiveC. UpdateD. Keepalive
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After editing to your device’s configuration, which command must you enter to activate the configuration changes?()
A. setB. copy candidate activeC. apply-configD. commit
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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
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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
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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
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Inerting means ______．A.The introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volumeB.The introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volumeC.The introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargoD.All of the above
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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
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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 loadingB.be gas-freed after loading operationsC.not be maintained in an inert conditionD.be maintained in an inert condition
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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
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—I think science is more useful than art.
—I disagree.I think artis_science.
A.not so useful as
B.less useful than
C.the most useful of
D.as useful as
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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%
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单选题Which of the following is NOT a company in the energy sector?A
Shell.B
ICI.C
RTZ.D
British Gas.
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单选题An inert gas system is designed to reduce the possibility of tank explosions by（）.A
eliminating sparks and fire in the vicinity of cargo tanksB
removing all hydrocarbon gases from the cargo tanksC
blanketing cargo tanks with inert foamD
reducing the oxygen concentration below levels necessary for combustion
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单选题Inerting means（）.A
the introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volumeB
the introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volumeC
the introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargoD
All of the above
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单选题It is that reduce the BOD by converting the organic content of the sewage to a chemically and organically inert sludge（）A
the bacteriaB
oxygenC
oxidizing functionD
agitation function
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单选题A diesel engine is supercharged in order to（）A
lower the no-load RPMsB
provide more air for combine with the fuelC
increase the no-load RPMsD
provide more fuel combine with the air
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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
filterB
coolerC
scrubberD
purifier
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单选题Which of the following can be concluded from the author’s statement “Any beneficial substances from the turtles could also be synthesized chemically, so as to prevent the killing of turtles” in Paragraph 3 ?A
The author feels sorry for killing turtles massively.B
Turtles can be used to substitute many other medicines.C
Many other kinds of herbs can be as useful as turtles.D
International market feels happy for Chinese businessmen to buy.
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