One of the principal dangers inherent in liquefied petroleum gas is ______．A.As it warms up it becomes heavier than airB.The way it reacts with sea waterC.The strong odor it producesD.Its low temperature causes frostbite or freezing
One of the principal dangers inherent in liquefied petroleum gas is ______．
A.As it warms up it becomes heavier than air
B.The way it reacts with sea water
C.The strong odor it produces
D.Its low temperature causes frostbite or freezing
相关考题：
Gas Carriers are generally referred to the cargo ships constructed or adapted and used for the carriage of ________ ．A.LNG in bulkB.LNG ＆ LPG in bulkC.LPG in bulkD.LNG ＆ LPG and other liquefied gas products
Before welding can be done in a tank that has previously carried petroleum products，a certificate must be obtained from ________ ．A.the customsB.the Register Bureau of shippingC.the shipyard fire departmentD.a certified gas chemist
Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from ______.A.the customsB.the Register Bureau of shippingC.the shipyard fire departmentD.a certified gas chemist
Certificate of Fitness for the Carriage of Liquefied Gases in Bulk shall be carried on board by ______．A.gas carriers constructed on or after 1 July 1986B.gas carriers constructed before 1 July 1986C.All chemical tankersD.oil tankers of 150 gross tonnage and above
Certificate of insurance or other financial security in respect of civil liability for oil pollution damage shall be carried on board by ______．A.ships carrying more than 2000 tons of oil in bulk as cargoB.oil tankersC.bulk chemicals carriersD.liquefied gas carriers
If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo ________．A.Make periodic inspections of bilgesB.Keep the barge under constant surveillanceC.Have a properly certificated tankerman or at least one licensed officer on board the towing vesselD.Verify ullage readings
The primary hazard of liquefied petroleum gas and liquefied natural gas is ______．A.PressureB.ToxicityC.TemperatureD.Flammability
The vapor pressure of a gas is the pressure necessary to keep it in a（n）______．A.Soluble stateB.Solid stateC.Liquefied stateD.Inert state
The engine in a covered lifeboat is fueled with ______．A.KeroseneB.Unleaded gasolineC.Diesel oilD.Liquefied gas
A fire of escaping liquefied flammable gas is best extinguished by ______.A.cooling the gas below the ignition pointB.cutting off the supply of oxygenC.stopping the flow of gasD.interrupting the chain reaction
共用题干Natural Gas1 Natural gas is produced from reservoirs deep beneath the earth's surface. It is a fossil fuel（矿物燃 料）,meaning that it is derived from organic material buried in the earth millions of years ago.The main corn- ponent of natural gas is methane（甲烷）.2 The popularity and use of clean natural gas have increased dramatically over the past 50 years as pipeline infrastructure（基础设施）has been installed to deliver it conveniently and economically to millions of residential,commercial and industrial customers worldwide.Today,natural gas service is available in all 50 states in the U.S.,and is the leading energy choice for fueling American homes and industries.More than 65 million American homes use natural gas.In fact,natural gas is the most economical source for home energyneeds,costing one-third as much as electricity. In addition to heating homes,much of the gas used in the United States is used as a raw material to manufacture a wide variety of products,from paint,to fibers for clothing,to plastics for healthcare,computing and furnishings.Natural gas is also used in a significant number of newelectricity-generating power plants.3 Natural gas is one of the safest and cleanest fuels available. It emits（发出）less pollution than other fossil fuels sources. When natural gas is burned,it produces mostly carbon dioxide（二氧化碳）and water va- por一the same substances emitted when humans breathe.Compared with some other fossil fuels,natural gas emits the least amount of carbon dioxide into the air when combusted（燃烧）一making natural gas the clea-- nest burning fossil fuel of all.4 The United States consumes about one-third of the world's natural gas output,making it the largest gas-consuming region in the world.The U.S.Department of Energy Information Administration forecasts thatnatural gas demand will grow by more than 50 percent by 2025.5 There are huge reserves of natural gas beneath the earth's surface.The largest reserves of natural gas can be found in Russia , West and North Africa and the Middle East. LNG（液化天然气）has been pro- duced domestically and imported in the United States for more than four decades.Today,the leading import-ers of LNG are Japan,Korea,France and Spain.Paragraph 4 ______________A:Popularity and Use of Natural GasB:Natural Gas Reserves and SupplyC:Natural Gas PricesD:Clean Fuel of ChoiceE:Disadvantages of Natural Gas F:Natural Gas Consumption
共用题干Natural Gas1 Natural gas is produced from reservoirs deep beneath the earth's surface. It is a fossil fuel（矿物燃 料）,meaning that it is derived from orgaiiic material buried in the earth millions of years ago.The main corn- ponent of natural gas is methane（甲烷）.2 The popularity and use of clean natural gas have increased dramatically over the past 50 years as pipeline infrastructure（基础设施）has been installed to deliver it conveniently and economically to millions of residential,commercial and industrial customers worldwide.Today,natural gas service is available in all 50 states in the U.S.,and is the leading energy choice for fueling American homes and industries.More than 65 million American homes use natural gas.In fact,natural gas is the most economical source for home energyneeds,costing one-third as much as electricity.In addition to heating homes,much of the gas used in the United States is used as a raw material to manufacture a wide variety of products,from paint,to fibers for clothing,to plastics for healthcare,computing and furnishings.Natural gas is also used in a significant number of new electricity-generating power plants.3 Natural gas is one of the safest and cleanest fuels available. It emits（发出）less pollution than other fossil fuel sources. When natural gas is burned , it produces mostly carbon dioxide（二氧化碳）and water va- por一the same substances emitted when humans breathe.Compared with some other fossil fuels,natural gas emits the least amount of carbon dioxide into the air when combusted（燃烧）一making natural gas the clea-nest burning fossil fuel of all.4 The United States consumes about one一third of the world's natural gas output,making it the largest gas-consuming region in the world.The U.S.Department of Energy Information Administration forecasts that natural gas demand will grow by more than 50 percent by 2025.5 There are huge reserves of natural gas beneath the earth's surface.The largest reserves of natural gas can be found in Russia , West and North Africa and the Middle East. LNG（液化天然气）has been pro- duced domestically and imported in the United States for more than four decades.Today,the leading import- ers of LNG are Japan,Korea,France and Spain.Paragraph 3__________A:Popularity and Use of Natural GasB:Natural Gas Reserves and SupplyC:Natural Gas PricesD:Clean Fuel of ChoiceE:Disadvantages of Natural GasF:Natural Gas Consumption
The author discusses computing machines in the first paragraph primarily in order to do which of the following？( ) A.Indicate the dangers inherent in relying to a great extent on machines. B.Ilustrate his views about the approach of mathematicians to problem solving. C.Compare the work of mathematicians with that of computer programmers. D.Provide one definition of intelligence.
The author discusses computing machines in the first paragraph primarily in order to do which of the following？( ) A.Indicate the dangers inherent in relying to a great extent on machines B.Ilustrate his views about the approach of mathematicians to problem solving C.Compare the work of mathematicians with that of computer programmers D.Provide one definition of intelligence
Which of the following concerning natural gas is NOT true？( ) A.It was not favored in the past. B.It is easily affected by the change of the climate. C.People are beginning to realize its value. D.It is increasingly cheaper to be liquefied.
Which type of ships as below isn’t subject to Enhanced Survey Program (ESP)?（）A、Non-sea-going shipsB、Liquefied gas carriersC、Bulk carriers, including ore carriersD、Edible oil tankers
单选题One of the principal dangers inherent in liquefied petroleum gas is（）.Aas it warms up it becomes heavier than airBthe way it reacts with sea waterCthe strong odor it producesDits low temperature causes frostbite or freezing
单选题0ne of the principal dangers inherent in liquified petroleum gas is（）.Aas it warms up it becomes heavier than airBthe way it reacts with sea waterCthe strong odor it producesDits low temperature causes frostbite or freezing
单选题A fire of escaping liquefied flammable gas is best extinguished by（）.Acooling the gas below the ignition pointBcutting off the supply of oxygenCstopping the flow of gasDinterrupting the chain reaction
单选题The weight of liquefied petroleum gas vapors as compared to air is（）.AvariableBthe sameClighterDheavier
单选题If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）AMake periodic inspections of bilgesBKeep the barge under constant surveillanceCHave a properly certificated tankerman or at least one licensed officer on board the towing vesselDVerify ullage readings
单选题The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.ApressureBtoxicityCtemperatureDflammability
单选题When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas)，you should （）.Aattempt to isolate the fire from the LPGBcool the bottles or remove them from the fire areaCsee that the valves on all LPG bottles are closedDplace insulating material over the bottles
名词解释题液化天然气liquefied natural gas（LNG）