Proper atomization of fuel in diesel engine combustion chambers will ().
A . affect the injection pressure
B . improve combustion
C . reduce compression pressure
D . decrease power output
相似题目
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Which two Any Transport over MPLS (AToM) traffic encapsulations require the use of a control word?()
A . HDLC
B . ATM AAL5
C . PPP
D . Ethernet VLAN
E . Frame Relay
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The term “proper metering”, as applied to a diesel fuel injection system, can be best defined as ().
A . delivering the same quantity of fuel to each cylinder for each power stroke according to engine load
B . maintaining the metering adjustment for a reasonable period under all load conditions
C . timing fuel injection to obtain maximum power and good fuel economy
D . distributing the fuel to all parts of the combustion chamber for proper combustio
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The needle valve in the injector () at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.
A . will lift
B . will be lifted
C . will close
D . will be closed
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which of the following shows the proper rhythmical pattern of the sentence?
A . ´Come to ´see us at our ´new a`partment
B . `Come to`see us at `our new `apartment
C . `Come to`see us `at our `new` apartment
D . `Come to `see us`at our`new a`parement
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Which of the following ATOM traffic encapsulations require the use of a Control Word?()
A . Cell relay
B . aal5
C . Ethernet VLAN
D . Frame Relay
E . HDLC
F . PPP
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Which of the following shows the proper pronunciation of “boiled” due to assimilation?
A . /bɔild/
B . /bɔilt/
C . /bɔilid/
D . /bɔilit/
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Fuel injection systems meter fuel, atomize fuel, and ().
A . create turbulence in the combustion chamber
B . aid in completing cylinder scavenging
C . inject fuel at the proper time
D . minimize fuel penetration into the cylinder
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A change in the degree of fuel atomization in a diesel engine would most greatly affect ().
A . air turbulence
B . fuel penetration
C . fuel spray angle
D . fuel injection rate
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Fuel oil discharged to the diesel engine cylinder is atomized at the ()
A . turbocharger
B . injection nozzle tip
C . carburetor
D . fuel oil pum
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Packed Cell Relay encapsulation with AToM inclues which of the following?()
A . Tunnel label
B . VC-label
C . 5-byte ATM header
D . Payload
E . 4 byte ATM header
F . Support for 30 packed cell
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Proper filtering and straining of fuel oil is important because the ().
A . fuel oil pump will over-speed if dirt is not removed
B . fuel oil transfer pumps cannot tolerate small amounts of dirt in the oil
C . fuel injectors may be damaged by foreign particles in the fuel oil
D . dirty fuel will clog the intake air filter
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() rods are not in proper condition so that too much fuel is supplied to the corresponding cylinder.
A . Piston
B . Sounding
C . Regulating
D . Connecting
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Who claimed that “Proper words in proper places make the true definition of style”?
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“Proper words in proper places, makes the true definition of a style.” This sentence is said by ____, one of the greatest masters of English prose.
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A chemical compound that contains two atoms of oxygen and one atom of another chemical element is called ______
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( )is a simple compound of two atoms of hydrogen and one atom of oxygen.
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Why is Indian currently banned from buying fuel and technology for atomic reactors?
A.Because it went against the Nuclear Non-Proliferation Treaty to conduct nuclearTESTs.
B.Because its civil and military nuclear programs are not separated.
C.Because UN officials think that India should give priority to the economical development.
D.Because India is extremely active in the nuclear proliferation.
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Scientists first ______ the idea of atomic bomb in the 1930s.
A.deceived
B.conceived
C.relieved
D.perceived
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When does a neutron from one atom collides with the nucleus of another atom, a chain reaction can occur.
此题为多项选择题。
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Which of the four quantum numbers determine the energy of an electron in a hydrogen atom ()
A.n
B.l
C.m l
D.m s
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All matter is ________ of atoms.
A.made up
B.made
C.made from
D.made into
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Oracle RDBMS is a distributed DBMS. Which of the following techniques adapted ensure atomicity of distributed transaction? ()
A.Two Phases Commit (2PC)
B.Remote Procedure Call (RPC)
C.triggers
D.snapshots
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Scientists discovered that atoms of some substances are radioactive. This means that they are unstable and can be split. The chain of splitting atoms releases great destructive energy and it was this discovery which led scientists to develop the idea of an atomic bomb. The American government secretly worked to produce such a bomb and the first version was much more powerful than anyone had thought.
By this time, the World War II had ended in Europe. But the Japanese refused to surrender, the Americans decided that by dropping an atomic bomb on Japan, they could end the war quickly and save more of their soldier’s lives.
Soon after midnight on 6 August 1945, a bomb was dropped on the city of Hiroshima, a civilian target. No warning was given and there was total devastation. Almost all the buildings were destroyed and more than 100000 people died or were horribly wounded.
The Japanese military still did not want to surrender so three days later, the Americans dropped a second atomic bomb on the city of Nagasaki, killing 45000 people. The Japanese government was discussing ending the war when they heard the news of Nagasaki. Finally, they surrendered and the World War II came to an end.
At first, the scientists who had built the bomb were pleased that it had helped to end the war. However, many would come to realize that they had helped to create the most terrible weapon known to man.
The first atomic bomb ______.
A.was less powerful
B.was dropped in Nagasaki
C.was a failure
D.was tested in desert
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Which of the following is the proper title of the passage()
A.Heart Disease
B.Depression and Fatality Rate
C.Depression
D.Depression Hurts the Heart