题目内容
（请给出正确答案）
Burning diesel oil should be considered as burning ().
A.class A
B.class B
C.class C
如搜索结果不匹配，请 联系老师 获取答案
更多“Burning diesel oil should be c…”相关的问题
第1题
Burning diesel oil should be treated as which class of fire？
A.Class "A"
B.Class "B"
C.Class "C"
D.Class "D"
第2题
The burning of fuel oil in a diesel engine having a high sodium content, will cause ＿.
A.corrosion and grooving of exhaust valves
B.corrosion and gumming of the fuel injection pump
C.salt deposits in the exhaust manifold
D.slag deposits in the fuel injection equipment
第3题
A.clogged fuel injection pumps
B.increased cylinder liner wear
C.intake valve stem corrosion
D.varnish deposit on pistons
第4题
A.After stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutes
B.Close auxiliary burner firstly and then close main burner
C.After stopping fuel, restoring the position of main fuel supply valve
D.Stop blower as soon as stopping supplying fuel oil
第5题
Thirst for Oil
？？Worldwide every day,we devourthe energy equivalent of about 200 million barrels of Oil. Most of the energyon Earth comes from the Sun. In fact enough energy from the Sun hits theplanet's surface each minute to cover our needs for an entire year,we just needto find an efficient way to use it. So far the energy in oil has been cheaperand easier to get at. But as supplies dwindle,this will change,and we will needto cure our addiction to oil.
？？ Burning wood satisfied mostenergy needs until the steam-driven industrial revolution, when ener- gy-densecoal became the fuel of choice. Coal is still used,mostly in power stations, tocover orle quar- ter of our e？？nergy needs,but its use has been declining sincewe started pumping up oil. Coal is the least efficient,unhealthiest and mostenvironmentally damaging fossil fuel,but could make a comeback, as supplies arestill plentiful;its reserves are five times larger than oil's.
？？ Today petroleum,a mineraloil obtained from below the surface of the Earth and used to producepetrol,diesel oil and various other chemical substances, provides around 40% ofthe world's energy needs,mostly fuelling automo'oiles. TheUSconsumes aquarter of all oil, and generates a similar pro- portion of greenhouse gasemissions.
？？The majority of oil Comesfrom the Middle East,which has half of knownreserves. But other sig- nificant sources includeRussia,NorthAmerica,Norway,Venezuelaand the North Sea.Alaska's Arctic National Wildlife Refugel could be a majornewUSsource, to reduce reliance on foreign imports.
？？ Most experts predict wewill exhaust easily accessible reserves within 50 years,though opinions andestimates vary. We could fast reach an energy crisis in the next fewdecades,when demand exceeds supply. As conventional reserves become more difficultto access. others such as oil shares and tar sands may be used instead. Petrolcould also be obtained from coal.
？？ Since we started using fossilfuels, we have released 400 billion tonnes of carbon, and burning theentire reserves could eventually raiseworld temperatures by 13℃. Among other horrors, this would re- sult in the destruction of allrainforests and tile inching of all Arctic ice.
we will need to cure our addiction to oil. " Why ？？does theauthor say so？？？？？
A.Most of the energy on Earth comes from the Sun
B.Oil supply is increasing all the time
C.Demand for oil is increasing all the time
D.Oil supply is decreasing
第6题
Thirst for Oil
Worldwide every day, we devour the energy equivalent of about 200 million barrels of oil. Most of the energy on Earth comes from the Sun. In fact enough energy from the Sun hits the planet's surface each minute to cover our needs for an entire year, we just need to find an efficient way to use it. So far the energy in oil has been cheaper and easier to get at. But as supplies dwindle, this will change, and we will need to cure our addiction to oil.
Burning wood satisfied most energy needs until the steam-driven industrial revolution, when energy-dense coal became the fuel of choice. Coal is still used, mostly in power stations, to cover one quarter of our energy needs, but its use has been declining since we started pumping up oil. Coal is the least efficient, unhealthiest and most environmentally damaging fossil fuel, but could make a comeback, as supplies are still plentiful: its reserves are five times larger than oil's.
Today petroleum, a mineral oil obtained from below the surface of the Earth and used to produce petrol, diesel oil and various other chemical substances, provides around 40% of the world's energy needs, mostly fuelling automobiles. The US consumes a quarter of all oil, and generates a similar proportion of greenhouse gas emissions.
The majority of oil comes from the Middle East, which has half of known reserves. But other significant sources include Russia, North America, Norway, Venezuela and the North Sea. Alaska's Arctic National Wildlife Refuge could be a major new US source, to reduce reliance on foreign imports.
Most experts predict we will exhaust easily accessible reserves within 50 years, though opinions and estimates vary. We could fast reach an energy crisis in the next few decades, when demand exceeds supply. As conventional reserves become more difficult to access, others such as oil shales and tar sands may be used instead. Petrol could also be obtained from coal.
Since we started using fossil fuels, we have released 400 billion tonnes of carbon, and burning the entire reserves could eventually raise world temperatures by 13℃. Among other horrors, this would result in the destruction of all rainforests and the melting of all Arctic ice.
"... we will need to cure our addiction to oil." Why does the author say so？
A．Most of the energy on Earth comes from the Sun.
B．Oil supply is increasing all the time.
C．Demand for oil is increasing all the time.
D．Oil supply is decreasing.
第7题
Burning wood satisfied most energy needs until the steam-driven industrial revolution, when energy-dense coal became the fuel of choice. Coal is still used, mostly in power stations, to cover one quarter of our energy needs, but its use has been declining since we started pumping up oil. Coal is the least efficient, unhealthiest and most environmentally damaging fossil fuel, but could make a comeback, as supplies are still plentiful; its reserves are five times larger than oil's.
Today petroleum, a mineral oil obtained from below the surface of the Earth and used to produce petrol, diesel oil and various other chemical substances, provides around 40% of the world's energy needs, mostly fuelling automobiles. The US consumes a quarter of all oil, and generates a similar proportion of greenhouse gas emissions.
The majority of oil comes from the Middle East, which has half of known reserves. But other significant sources include Russia, North America, Norway, Venezuela and the North Sea. Alaska's Arctic National Wildlife Refuge could be a major new US source, to reduce reliance on foreign imports.
Most experts predict we will exhaust easily accessible reserves within 50 years, though opinions and estimates vary. We could fast reach an energy crisis in the next few decades, when demand exceeds supply. As conventional reserves become more difficult to access, others such as tar sands may be used instead. Petrol could also be obtained from coal.
Since we started using fossil fuels ,we have released 400 billion tones of carbon, and burning the entire reserves could eventually raise world temperatures by 13℃. Among other horrors, this would result in the destruction of all rainforests and tile inching of all Arctic ice.
"… we will need to cure our addiction to oil." Why does the author say so？
A．Most of the energy on Earth comes from the Sun.
B．Oil supply is increasing all the time.
C．Demand for oil is increasing all tile time.
D．Oil supply is decreasing.
第8题
Thirst for Oil
Worldwide every day，we devour the energy equivalent of about 200 million barrels of oil．Most of the energy on Earth comes from the Sun．in fact enough energy from the Sun hits the planet’s surface each minute to cover our needs for the entire year，we just need to find an efficient way to use it．So far the energy in oil has been cheaper and easier to get at．But as supplies dwindle，this will change，and We will need to cure our addition to oil．
Burning wood satisfied most energy needs until the Steam—driven industrial revolution，when energy—dense coal became the fuel of choice．Coal is still used，mostly in power stations，to cover one quarter of our energy needs，but its use has been declining since we started pumping up oil．Coal is the least efficient,unheahhiest and most environmentally damaging fossil fuel，but could make a comeback，as supplies are still plentiful：its reserves are five times largerthan oil's．
Today petroleum，a mineral oil obtained from below the surface of the Earth and used to produce petrol，diesel oil and various other chemical substances，provides around 40％of the world’s energy needs，mostly fuelling automobiles．The US consumes a quarter of all oil，and generates a similar proportion of greenhouse gas emissions．
The majority of oil comes from the Middle East，which has half of known reserves．But other significant sources include Russia，North America，Norway，Venezuela and the North Sea．Alaska’s Arctic National Wildlife Refuge could be a major new US sources，to reduce reliance on foreign imports．
Most experts predict we will exhaust easily accessible reserves within 50 years，though opinions and estimates vary．We could fast reach an energy crisis in the next few decades，when demand exceeds supply。As conventional reserves become more difficult to access．others such as oil shales and tar may be used instead．Petrol could also be obtained from coal．
Since we started using fossil fuels，we have released 400 billion tones of carbon，and burning the entire reserves could eventually raise world temperatures by 13℃．Among other horrors，this would result in the destruction of all rain—forests and the melting of all Arctic ice．
根据以上材料回答下面问题：
第 56 题 “…we will need to cure our addiction to oil．”Why does the author say so？
A．Most of the energy on Earth comes from the sun．
B．Oil supply is increasing all the time．
C．Demand for oil is increasing all the time．
D．Oil supply is decreasing．
第9题
Burning (), the oil provides the engine’s power.
A.in the piston
B.in the cylinder
C.in the bearing
为了保护您的账号安全，请在“上学吧”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
微信搜一搜
上学吧
微信搜一搜
上学吧
