海船船员考试
单选题Halon gas will decompose and may form very hazardous toxic fumes when discharged（）.A directly on flamesB at room temperatureC in an extremely cold climateD None of the above
题目
directly on flames
at room temperature
in an extremely cold climate
None of the above
参考答案和解析
相似问题和答案
第1题：
Halogenated hydrocarbon， Halon in short form，is used on board ship as ________ ．
A.fire-extinguishing medium
B.a standard fire test
C.a non-combustible material
D.a fire main
第2题：
According to the Chemical Data Guide，what does ethyl chloride produce when ignited?
A.Toxic fumes of oxides of nitrogen
B.Toxic fumes of lead
C.Poisonous phosgene gas
D.Poisonous chlorine gas
第3题：
Which of the following does Strayer want to stress most?
A．The driving performance may be weakened by a cell phone talking．
B．The driving performance may be affected by a high blood alcohol level．
C．Drivers are not to drive over the cell phone or after drinking．
D．A cell phone talking is no less hazardous than alcohol in driving．
逻辑推理题。全文阐述驾驶时手机聊天的危险以及通过实验分析其危害性的具体体现，尤其是其对驾驶的影响，由此我们可以确定正确答案是A(驾驶行为会受到打电话的影响)。选项B(血液中酒精度高会影响驾驶行为)；C(打电话或酒后不应开车)和D(边开车边打电话和酒后驾驶一样危险)都不是Strayer最着重强调的。
第4题：
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
第5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6题：
An inert gas system installed on a tanker is designed to ______.
A.aid in the stripping and cleaning of cargo tanks
B.increase the rate of discharge of cargo
C.force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere
D.lower the oxygen levels inside cargo tanks，making explosion nearly impossible
第7题：
Halon gas will decompose and may form very hazardous toxic fumes when discharged ______.
A.directly on flames
B.at room temperature
C.in an extremely cold climate
D.None of the above
第8题：
A、should run
B、should have run
C、may run
D、may have run
第9题：
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
第10题：
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