单选题Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a（）.Arespiratory irritantBskin burning agentCblood poisoning agentDnerve paralyzing irritant
单选题
Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a（）.
A
respiratory irritant
B
skin burning agent
C
blood poisoning agent
D
nerve paralyzing irritant
参考解析
解析：
暂无解析
相关考题：
Any open flame can’t exist in this business buildingA.Yes. We’ve removed all the flammable gas.B.Yes. We’ve searched everywhere for flammable liquidC.Yes. All the flammable liquid and gas have been removed already.D.Yes. We’ve removed all the liquid, gas and wood which can be burned
I was about to leave when it _______to me that I had not turned off the gas in the kitchen.A、AppealedB、happenedC、occurredD、struck
The effect that exhaust gas recirculation can reduce NOX formation is partly due to a reduction of the()concentration in the combustion zone and partly due to the content of water and carbon dioxide in the exhaust gas.A.OxygenB.NitrogenC.SulphurD.Freon
The water in an auxiliary boiler should be tested for chloride content to determine ( ).A.total dissolved solidsB.salt contaminationC.water harcnessD.chlorine contamination
One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space isA.the 'snow' which is sometimes discharged along with the gas is toxicB.prolonged exposure to high concentrations of CO2 gas causes suffocationC.rapid dissipation of the CO2 vaporD.the CO2 gas is lighter than air and a large amount is required to extinguish a fire near the deck
According to the Chemical Data Guide，what does ethyl chloride produce when ignited?A.Toxic fumes of oxides of nitrogenB.Toxic fumes of leadC.Poisonous phosgene gasD.Poisonous chlorine gas
A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as ______.A.dilutionB.displacementC.precipitationD.Either A or B
Which barge in your tow would require a cargo information card to be carried in the pilothouse ________．A.A tank barge with a sign reading No Visitors，No Smoking，No Open LightsB.An open hopper barge carrying coalC.A gas-free chlorine bargeD.An empty（not gas-free）barge that last carried benzene
Your tow includes a barge carrying chlorine．Which special requirements must be observed ________．A.The wing voids shall not be opened when underwayB.You must post a deckhand to keep a special watch on this bargeC.A cargo information card for chlorine must be in the pilothouseD.All of the above
What kind of （）can be used for gas and chemical fires?A、equipmentB、apparatusC、extinguishersD、machines
单选题An exhaust gas bypass is installed on a waste heat boiler in order to （）.Abypass exhaust gas at high loads to prevent excessive back pressureBbypass a portion of the exhaust gas at peak loads for better efficiencyCrecycle exhaust gas to the turbochargerDminimize moisture condensation in the boiler gas passages at low loads
单选题One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is （）.Athe snow which is sometimes discharged along with the gas is toxicBprolonged exposure to high concentrations of C02 gas causes suffocationCrapid dissipation of theC02 vaporDthe C02 gas is lighter than air and a large amount is required to extinguisha fire near the deck
单选题Diesel engine exhaust noise can be reduced in an exhaust muffler by （）Achanging the direction of exhaust gas flowBincreasing the exhaust gas velocityCchanging the exhaust gas weightDincreasing the exhaust gas static pressure
单选题Since accumulations of H2S gas on a ship can be dangerous to personnel，it is important to know that H2S gas is（）.Alighter than airBheavier than airCa yellow gas that is easily recognizedDmildly toxic
单选题A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as（）.AdilutionBdisplacementCprecipitationDEither A or B
单选题According to the Chemical Data Guide，what does ethyl chloride produce when ignited?（）AToxic fumes of oxides of nitrogenBToxic fumes of leadCPoisonous phosgene gasDPoisonous chlorine gas
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Personnel working with refrigeration systems, and subject to the exposure of refrigerants should wear （）.Aface shieldBa respiratorCrubber glovesDan all purpose gas mask
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Gas turbines differ from steam turbines in that （）.Asteam rather than gas is used to turn a shaftBvapor rather than gas is used to turn a shaftCthe former uses gas to turn a shaftDthe latter uses gas to turn a shaft
单选题Chlorine does great harm to health.ARightBWrongCDoesn’t say