题目内容（请给出正确答案）

[主观题]

Mist detectors used on large low-speed main propulsion diesel engines monitor and check fo

r the presence of _____.

A.fuel oil vapor at the sludge tank vent

B.unburned fuel vapors in the scavenge air receiver

C.lube oil vapors in the crank case

D.lube oil vapors in the engine room

查看答案

如搜索结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装上学吧APP，拍照搜题省时又省心！

更多“Mist detectors used on large l…”相关的问题

第1题

Oil mist detectors are usually used on board to detect oil mist density within _____.A.the

Oil mist detectors are usually used on board to detect oil mist density within _____.

A.the engine crankcase

B.the engine scavenge boxes

C.drain tanks

D.fuel tanks

点击查看答案

第2题

______continuously extract the crankcase atmosphere, via a pipe system, and move it past a

sensitive and accurate opacity(不透明性) measuring track.

A.The oil mist detectors

B.The smoke detectors

C.An oily water monitor

D.Oil discharge monitoring and controlling system

点击查看答案

第3题

The oil mist detectors continuously_____ the crankcase atmosphere, via a pipe system, and

move it past a sensitive and accurate opacity measuring track.

A.detract

B.extract

C.pump up

D.pump down

点击查看答案

第4题

The person who is really guilty can distort the results by A．anticipating the

The person who is really guilty can distort the results by

A．anticipating the crucial questions

B．lie detectors are wildly used in the United States

C．convicted of crimes they have not committed

D．whether to adopt the lie detectors or not

E．they discount human imagination and ingenuity

F．lie detectors are misleadingly attractive

点击查看答案

第5题

Although "lie detectors" are widely used by governments, police departments and businesses

, the results are not always accurate. Lie detectors are commonly【C1】______as emotion detectors, for their aim is to【C2】______bodily changes that contradict what a【C3】______says. The lie detector records changes【C4】______heart rate, breathing, blood pressure, and the electrical【C5】______of the skin. In the first part of the【C6】______you are electronically connected to the machine and【C7】______a few neutral questions("What is your name？" etc. ). Your physical reactions serve【C8】______the standard for evaluating what comes【C9】______Then you are presented with a few【C10】______questions among the neutral ones("When did you rob the bank？" ). The idea is that if you are【C11】______, your body will reveal the truth, even if you try to【C12】______it. Your heart rate and breathing will change【C13】______as you respond to the questions.

That is the theory, but psychologists have found that lie detectors are simply not【C14】______. Since most physical changes are the same across【C15】______emotions, lie detectors cannot tell【C16】______you are feeling angry, nervous or excited.【C17】______people may be tense and nervous【C18】______the whole procedure. They may react physiologically to a certain word("bank" )not because they robbed it, but because they recently used a bad check. In either【C19】______, the machine will record a "lie".

On the other hand, some practiced liars can lie【C20】______hesitation, so the reverse mistake is also common.

【C1】

A．known

B．designed

C．fixed

D．produced

点击查看答案

第6题

Although "lie detectors" are widely used by governments, police departments and businesses

, the results are not always accurate. Lie detectors are commonly【C1】______as emotion detectors, for their aim is to【C2】______bodily changes that contradict what a 28 says. The lie detector records changes【C4】______heart rate, breathing, blood pressure, and the electrical【C5】______of the skin. In the first part of the【C6】______, you are electronically connected to the ma chine and【C7】______a few neutral questions("what is your name？" etc). Your physical reactions serve【C8】______the standard for evaluating what comes【C9】______. Then you are presented with a few【C10】______questions among the neutral ones("When did you rob the hank？" ). The idea is that if you are【C11】______, your body will reveal the truth, even if you try to【C12】______it. Your heart rate and breathing will change【C13】______as you respond to the question.

That is the theory, but psychologists have found that lie detectors are simply not【C14】______. Since most physical changes are the same across【C15】______emotions, lie detectors cannot tell【C16】______you are feeling angry, nervous or excited.【C17】______people may be tense and nervous【C18】______the whole procedure. They may react physiologically to a certain word("bank")not because they robbed it, but because they recently used a bad check. In either【C19】______, the machine will record a "lie" .

On the other hand, some practiced liars can lie【C20】______hesitation, so the reverse mistake is also common.

【C1】

A．fixed

B．designed

C．known

D．produced

点击查看答案

第7题

Todays policemen in large cities throughout the world rely on modern inventions to help th

em in their work. In most places motor scooters and police patrol cars have done away with the need to patrol on foot or on horseback. Policemen use telephones, conveniently located throughout their districts, to make immediate contact with headquarters. Radio, television, and computers help to speed the work of the modern force. Even boats and helicopters are part of the equipment of metropolitan police departments. New technical inventions are widely used to fight crime and speed the solution criminal cases. Electronic computers reduce from hours to minutes the time spent in searching for fingerprints. Witnesss descriptions of a criminal are coded and fed into a computer. The machine then sorts through the picture file of known criminals and selects the name and photograph of the most likely suspect. Lie detectors are used to uncover the truth.

点击查看答案

第8题

根据材料请回答 23～30 题 Lie detectors （测谎仪)are widely used in the United States to f

根据材料请回答 23～30 题

Lie detectors (测谎仪)are widely used in the United States to find out whether a per-son is telling the truth or not.Polygraphists, the person who operate them, claim that they can establish guilt by detecting physiological changes that accompany emotional stress.The technique adopted is to ask leading questions such as: "Did you take the mo-ney？" or "Where did you hide the money？", mixed in with neutral questions, and measure the subject's electrical resistance in the palm or changes in his breathing and heart rate.Such apparatus has obtained widespread recognition.

Whether lie detectors will ever be adopted on a similar scale in Britain is still a matter of opinion.At first sight, it appears obvious that any simple, reliable method of convic-ting guilty people is valuable, but recent research sponsored by the U.S.Office of Public Health not only raises doubts about how lie detectors should be.used but also makes it questionable whether they should be employed at all.

The point is that, apart from many of the polygraphists being unqualified, the tests themselves are by no means free from error, primarily because they discount human imagi-nation and ingenuity.Think of all those perfectly innocent people, with nothing to be a-fraid of, who blush and stammer when a customs officer asks them if they have anything to declare.Fear, and a consequently heightened electrical response, may not be enough to establish guilt.It depends on whether the subject is afraid of being found out or afraid of being wrongfully convicted.

On the other hand, the person who is really guilty and whose past experience has pre-pared him for such tests can distort the results by anticipating the crucial questions or de-liberately giving exaggerated responses to neutral ones!

The success rate of up to 90% claimed for lie detectors is misleadingly attractive.If we refer such a figure to a company with 500 employees, twenty of whom are thieves, the lie detector could catch 18 of them but in doing so would place 32 innocent employees un-der suspicion.The problem for the management would therefore become one of deciding how much industrial unrest they are prepared to cause in order to eliminate theft.What concerns research workers even more, of course, is the fact that a certain number of in no-cent people are bound to be convicted of crimes that they have not committed.

第 23 题 Paragraph 1__________

点击查看答案