【单选题】
重力放起落架时，起落架的供，回油管路通过哪两个部件接通___
A. 安全valve和通气valve；
B. 通气valve和切断valve（CUT-OUT）；
C. 安全valve和切断valve（CUT-OUT）。
D.
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相关试题
【单选题】
主起落架放下后，其收放作动筒处在___
【单选题】
自动刹车待命的条件___
A. 一个自动刹车减速率按钮压下，绿系统压力正常，防滞刹车接通，正常刹车系统无故障；
B. 一个刹车减速率按钮压下，黄系统压力正常，防滞刹车接通，正常刹车系统无故障；
C. 一个刹车减速率按钮压下，绿系统失压，防滞失效，自动刹车无故障。
D.
【单选题】
以下正确的是当PARKBRK控制手柄在ON位，其他的刹车方式被断开___
A. 停留刹车置“ON”位，将断开除防滞以外的所有刹车方式
B. 停留刹车置“ON”位，将断开自动刹车
C. 停留刹车置“ON”位，将断开其他所有刹车方式
D. A+B+C
【单选题】
仅剩蓝系统时：___
A. 失去刹车系统
B. 可进行七次全程刹车
C. 防滞仍可用
D. 可进行五次全程刹车
【单选题】
当刹车温度达到多少度时，刹车按钮上的“HOT”(热)灯亮？___
A. 250℃
B. 300℃
C. 315℃
D. 310℃
【单选题】
自动刹车由谁起动？___
A. 选择反推
B. 地面扰流板放出
C. 起落架压缩
D. A+B+C
【单选题】
地面收起落架舱门是由哪个液压系统提供压力？___
A. 绿系统
B. 蓝系统
C. 黄系统
D. 绿和黄
【单选题】
在地面操作前起落架转弯，不正确的作法是：___
A. 确认前起落架上转弯解除手柄在解除位
B. 接通黄电动泵，通过PTU增压绿液压系统
C. 拔出发动机1或2的低滑油压力电门或将发动机1或2的主电门（手柄）置ON位
D. 转动前轮转弯手轮或蹬方向舵脚蹬
【单选题】
关于停留刹车，不正确的是：___
A. 接通停留刹车程序：踩下刹车脚蹬，将停留刹车控制手柄转到ON位，松开刹车脚蹬
B. 接通停留刹车程序：只需将停留刹车控制手柄转到ON位
C. 停留刹车使用黄液压系统或黄系统刹车贮压器的压力
D. B+C
【单选题】
当自动刹车工作时，它可由谁解除预位？___
A. 收起地面扰流板
B. 按下方式按钮或失去一个预位条件
C. 单脚中度或低度最大方式刹车或双脚最大方式刹车
D. A,B或C任何一项都可
【单选题】
起落架指示面板接受来自临近电门与_________的信息：___
A. LGCIU1
B. LGCIU2
C. LGCIU1和LGCIU2
D. LGCIU1或LGCIU2
【单选题】
在哪种情况下起落架指示面板上未锁定灯亮？___
A. 起落架在所选位置未锁定
B. 起落架重力放出，舱门未关闭
C. 起落架正常放出，舱门未锁定
D. 起落架正常收起，舱门未锁定
【单选题】
可放起落架的最大速度为：___
A. 260KT
B. 250KT
C. 240KT
D. 230KT
【单选题】
(给出起落架的ECAM显示的组件是)___
A. 顺序的任一个起落架控制和接口组件。
B. 同时的两个起落架控制和接口组件。
C. 只是起落架控制和接口组件1。
D. B+C
【单选题】
驾驶舱中手轮提供的前轮转弯角度为___
【单选题】
下列说法不正确的是：___
A. 发现前起落架减震支柱漏油后可启用备用封圈
B. 发现主起落架减震支柱漏油后可启用备用封圈
C. 在启用备用封圈时，只能用手拧紧valve
D. B+C
【单选题】
起落架放出后，飞机最大速度为：___
A. 300KT/M.
B. 280KT/M.
C. 260KT/M.
D. 240KT
【单选题】
当速度大于260KT时，哪个ADIRS关闭绿系统供压安全valve？___
A. ADIRS1和2
B. ADIRS1和3
C. ADIRS2和3
D. ADIRS1
【单选题】
最大轮胎速度为：___
A. 250KT
B. 195KT
C. 185KT
D. 160KT
【单选题】
在什么刹车方式下，扰流板伸出几秒后，渐增的刹车压力被送到刹车？___
A. MAX（最大）方式
B. MED（中等）方式
C. LO（低）方式
D. A+B+C
【单选题】
前轮转弯何时可用？___
A. 起落架舱门打开时
B. 前起落架舱门关闭时
C. 所有起落架舱门关闭时
D. A+B+C
【单选题】
前轮转弯系统压力何时关断？___
A. 地面牵引
B. 飞机速度大于130KT
C. 双发关车
D. A+B+C
【单选题】
收起落架的最小速度是：___
A. 200KT
B. 220KT
C. 250K
D. 160KT
【单选题】
LGCIU在起落架正常收放中起________作用___
A. 接收GEAR/DOOR上各位置传感器信号
B. 给出下一步骤valve运动控制信号
C. A&B
D.
【单选题】
A320主起落架安全保护装置是安装在______上。___
A. 收放作动筒
B. 锁作动筒
C. 斜撑杆
D.
【单选题】
A320的起落架收放使用的是_________液压系统。___
【单选题】
正常收起落架时，起落架舱门可以关闭的条件是___________
A. 3个起落架全部收上
B. 3个起落架全部收上并上锁
C. 主起落架全部收上
D.
【单选题】
正常刹车方式由______液压系统供压___
A. 黄系统
B. 绿系统
C. 黄系统和绿系统
D.
【单选题】
实现正常刹车防滞功能主要部件是__________
A. BSCU和NOMALSERVOVALVE
B. DUALVALVE和ALTERNATESERVOVALE
C. DUALSHUTTLEVALVE
D.
【单选题】
LGCIUs的装机位置____________
A. 前电子舱内
B. 后电子舱内
C. 前货舱内
D.
【单选题】
主起落架减震支柱的气腔有_____级___
【单选题】
主起落架减震支柱的自由活塞的作用__________
A. 隔绝油腔和下气腔
B. 转递能量
C. A+B
D.
【单选题】
_______起落架舱门不是通过机械随动作动的___
A. 前起AFTDOOR
B. 支柱固定舱门和铰接舱门
C. 主舱门
D.
【单选题】
A320前起落架机轮的正常胎压为_________
A. 178~185
B. 217~225主
C. 178~187
D.
【单选题】
地面利用轮舱门放出手柄放舱门后需要采取_____保护措施___
A. 挂牌禁止打液压泵
B. 安装舱门保护套和手柄锁定销
C. A&B
D.
【单选题】
更换机轮时，拆下机轮锁紧大螺帽后，应________后，才能拆卸机轮。___
A. 安装螺纹保护套
B. 拆下轮速传感器
C. A+B
D.
【单选题】
BSCU有哪些功能（）___
A. 自动刹车
B. 前轮转弯
C. 防滞功能
D. 以上都对
【单选题】
LGCIU什么时候进行自动转换，来控制起落架的收/放（）___
A. 起飞时
B. 着陆时
C. 选择手柄在“UP”位时
D. 选择手柄在“DOWN”位时
【单选题】
LGCIU有哪些功能（）___
A. 监控故障
B. 自检测试
C. 地面维护测试
D. 以上都对
【单选题】
安全valve什么时候打开（）___
A. 空速大于260节
B. 起落架手柄在放下位
C. 空速小于260节
D. B+C
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The new law passed in Rome will ________.___
A. help improve fishing environment
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People in Rome believe that the civilization of a city can be judged by _________.___
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A. keep their dogs or cats in cars
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C. raise their cats near ancient ruins
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【单选题】
We can infer from the passage that _________.___
A. the owners can leave their dogs in hot cars
B. the cat only lives in modern life
C. the new law can prevent cruelty to animals
D. the new law gives recognition to the
people who feed homeless cat
【单选题】
If a person finds getting up early a problem, most probably ________.___
A. he is a lazy person
B. he refuses to follow his own energy cycle
C. he is not sure when his energy is low
D. he is at his peak in the afternoon or evening
【单选题】
Which of the following may lead to family quarrels according to the passage?___
A. Unawareness of energy cycles.
B. Familiar monologues.
C. A change in a family member's energy cycle.
D. Attempts to control the energy cycle of other family members.
【单选题】
If one wants to work efficiently at his low point in the morning, he should __________.___
A. change his energy cycle
B. overcome his laziness
C. get up earlier than usual
D. go to bed earlier
【单选题】
You are advised to rise with a yawn and stretch because it will __________.___
A. help to keep your energy for the day's work
B. help you to control your temper early in the day
C. enable you to concentrate on your routine work
D. keep your energy cycle under control all day
【单选题】
Which of the following statements is NOT true?___
A. Getting off to work with a minimum effort helps save one's energy.
B. Dr. Kletman explains why people reach their peaks at different hours of day.
C. Habit helps a person adapt to his own energy cycle.
D. Children have energy cycles, too.
【单选题】
An effective way to prevent the burnout of young athletes is __________.___
A. to increase their sense of success
B. to make sports less competitive
C. to reduce their mental stress
D. to make sports more challenging
【单选题】
According to the passage sport is positive for young people in that __________.___
A. it can help them learn more about society
B. it enables them to find flaws in themselves
C. it teaches them how to set realistic goals for themselves
D. it can provide them with valuable experiences
【单选题】
Many coaches and parents are in the habit of criticizing young athletes __________.___
A. without realizing criticism may destroy their self-confidence
B. in order to make them remember life's lessons
C. believing that criticism is beneficial for their early development
D. so as to put more pressure on them
【单选题】
According to the passage parents and coaches should __________.___
A. help children to win every game
B. pay more attention to letting children enjoy sports
C. train children to cope with stress
D. enable children to understand the positive aspect of sports
【单选题】
The author's purpose in writing the passage is _________.___
A. to persuade young children not to worry about criticism
B. to stress the importance of positive reinforcement to children
C. to discuss the skill of combining criticism with encouragement
D. to teach young athletes how to avoid burnout
【单选题】
As pointed out at the beginning of the passage, people used to think that air pollution _______.___
A. cause widespread damage in the countryside
B. affected the entire eastern half of the United States
C. had damaged effect on health
D. existed merely in urban and industries areas
【单选题】
As to the greenhouse effect, the author ________.___
A. share the same view with the scientist
B. is uncertain of its occurrence
C. rejects it as being ungrounded
D. thinks that it will destroy the world soon
【单选题】
The underlined word "offset" in the second paragraph could be replaced by _________.___
A. slip into
B. make up for
C. set up
D. catch up with
【单选题】
It can be concluded that ____________.___
A. raising the world's temperature only a few degrees would not do much harm to life on earth
B. lowering the world's temperature merely a few degrees would lead major farming areas to disaster
C. almost no temperature variations have occurred over the past decade
D. the world's temperature will remain constant in the years to come
【单选题】
This passage is primarily about __________.___
A. the greenhouse effect
B. the burning of fossil fuels
C. the potential effect of air pollution
D. the likelihood of a new ice age
【单选题】
What is the major function of paragraph 1?___
A. To arouse the reader's concern.
B. To introduce the theme of the whole passage.
C. To summarize the whole passage.
D. To state the primary uses of TV.
【单选题】
Television, as a source of entertainment, is ________.___
A. not very convenient
B. very expensive
C. quite dangerous
D. relatively cheap
【单选题】
Why are some people against TV?___
A. Because TV programs are not interesting.
B. Because TV viewers are totally passive.
C. Because TV prices are very high.
D. Because TV has both advantages and disadvantages.
【单选题】
One of the most obvious advantages of TV is that _________.___
A. it keeps us informed
B. it is very cheap
C. it enables us to have a rest
D. it controls our lives
【单选题】
According to the passage, whether TV is good or not depends on ___________.___
A. its quality
B. people's attitude towards it
C. how we use it
D. when we use it
【单选题】
What regulation was issued by New York State concerning beverage containers?___
A. A fee should be charged on used containers for recycling.
B. Throwaways should be collected by the state for recycling.
C. Consumers had to pay for beverage containers and could get their money back on returning them.
D. Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.
【单选题】
The returned plastic bottles in New York used to _____________.___
A. be turned into raw materials
B. be separated from other rubbish
C. have a second-life value
D. end up somewhere underground
【单选题】
The key problem in dealing with returned plastic beverage containers is ______________.___
A. how to reduce their recycling costs
B. to sell them at a profitable price
C. how to turn them into useful things
D. to lower the prices for used materials
【单选题】
Recycling has become the first choice for the disposal of rubbish because ______________.___
A. recycling causes little pollution
B. other methods are more expensive
C. recycling has great appeal for the jobless
D. local governments find it easy to manage
【单选题】
It can be concluded from the passage that ____________.___
A. recycling is to be recommended both economically and environmentally
B. local governments in the U.S. can expect big profits from recycling
C. rubbish is a potential remedy for the shortage of raw materials
D. landfills will still be widely used for waste disposal
【单选题】
The author chose to study engineering at a small liberal-arts university because he ________.___
A. intended to be a sensible student with noble ideals
B. wanted to be an example of practicality and rationality
C. intended to be a combination of engineer and humanist
D. wanted to coordinate engineering with liberal-arts courses in college
【单选题】
According to the author, by interacting with people who study liberal arts, engineering students can __________.___
A. broaden their horizons
B. receive guidance in their careers
C. become noble idealists
D. balance engineering and the liberal arts
