【单选题】
若起落架开锁作动筒的轴封严渗漏，则放行的标准为（加压时）___
A. 小于1滴/分；
B. 小于30滴/分；
C. 小于60滴/分。
D.
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相关试题
【单选题】
下列哪些不是储压器的功能___
A. 维持系统管路压力，避免大的压力波动；
B. 液压油临时短缺时提供补充；
C. 失去液压动力后提供动力。
D.
【单选题】
液力油加油管路滤子堵塞时，则___
A. 液压油可通过旁通油滤加入；
B. 加油压力将升高；
C. 不可能加油。
D.
【单选题】
液压防火关断valve何时关闭___
A. 发动机停车后；
B. 探测到火警后自动关断；
C. 松出发动机灭火按钮后。
D.
【单选题】
液压管路的渗漏放行标准为___
A. 小于1滴/分；
B. 小于5滴/分；
C. 不允许渗漏。
D.
【单选题】
液压油箱加油时是否释压___
A. 不需要；
B. 需要；
C. 最好释压。
D.
【单选题】
液压油箱增压的目的___
A. 给系统提供初始压力；
B. 防止泵出现气塞并起气封严的作用；
C. 防止液压波动。
D.
【单选题】
液压油箱增压压力为：___
A. 50PSI；
B. 100PSI；
C. 500PSI。
D.
【单选题】
以下几项哪些是由绿系统供压:___
A. 1起落架和门的收放（包括前轮转弯）。2正常刹车。3左发反推。
B. 1；
C. 1、2；
D. 全选。
【单选题】
应急发电机的恒速马达由谁提供动力___
A. 绿液压系统；
B. 黄液压系统；
C. 蓝液压系统。
D.
【单选题】
余油收集瓶收集何处余油___
A. 液压油箱余油；
B. 特殊不见的封严余油；
C. A+B。
D.
【单选题】
在应急情况下，何时GSM/G自动关断蓝系统只提供液压到飞机控制系统___
A. 飞机接地后；
B. 起落架放出后；
C. 飞行高度低于500m后。
D.
【单选题】
在正常操纵货舱门时，飞行舵面能否被做动___
【单选题】
在做地面收放RAT测试时，间隔必须大于___
A. 10分钟；
B. 30分钟；
C. 1小时。
D.
【单选题】
哪个液压系统由发动机驱动泵（EDP）来增压？___
A. 蓝和绿
B. (仅在地面操作)电动泵用于黄系统
C. 绿和黄
D. 绿、黄、蓝
【单选题】
冲压涡轮（RAT）收进控制面板位于：___
A. 机身左侧的绿系统勤务面板
B. 机身左侧的蓝系统勤务面板
C. 机身右侧的黄系统勤务面板
D. 主轮舱里
【单选题】
液压油箱加油手摇泵和加油软管位于_____；手摇泵手柄位于_______
A. 绿系统勤务面板；黄系统勤务面板
B. 黄系统勤务面板；绿系统勤务面板
C. 蓝系统勤务面板；黄系统勤务面板
D. 绿系统勤务面板；绿系统勤务面板
【单选题】
动力传输组件(PTU)：___
A. 可在蓝和黄系统间互相转换
B. 在绿和黄系统间互相转换
C. 可在绿和黄系统间互相转换
D. 可在所有三个系统间转换
【单选题】
冲压空气涡轮在空中放出后为谁增压___
A. 绿系统
B. 通过动力传输组件为黄和绿系统
C. 蓝系统
D. 黄系统
【单选题】
在什么情况下，蓝系统电动泵工作？___
A. 当飞机在地面，电动泵电门在AUTO位，且超控电门在ON位
B. 当绿和黄系统处于低压力状态时
C. 一旦一台发动机运转且超控电门在ON位已经处于AUTO位不用超空电门在ON位了
D. 货舱门打开时
【单选题】
地面发动机开车前，蓝泵处于自动位且飞机有供电时，蓝泵：___
A. 自动通电
B. 蓝泵人工超控按钮按下时通电
C. 蓝泵控制按钮按下时通电
D. 货舱门打开时通电
【单选题】
在一发开车时，动力传输组件(PTU)：___
A. 自动工作
B. 被测试
C. 被抑制
D. 以上都不对
【单选题】
冲压空气涡轮在何时收起___
A. 飞行中
B. 地面
C. 地面和飞行中
D. 以上都不对
【单选题】
能否在绿系统到黄系统之间或黄系统到绿系统之间交换液压油___
A. 不能
B. 能，通过动力传输组件
C. 能，泄漏时换液压油
D. 能，加液压油时换液压油
【单选题】
液压火警关断电门何时关闭：___
A. 主电门置OFF位时
B. 灭火按钮松出时
C. 如果探测到火警，自动关闭
D. 灭火瓶释放后
【单选题】
在地面，蓝电动泵按钮置AUTO位时，电路何时通电：___
A. 一个电瓶置于AUTO
B. 地面电源接通
C. 一台发动机工作或蓝泵超控按钮按下
D. A+C
【单选题】
一个液压系统压力低时：___
A. 主警告灯亮
B. 主警告灯亮且“叮”的一声
C. 无警告
D. 主警告灯亮且有连续声响
【单选题】
失去绿系统时，防滞：___
A. 失去
B. 限制在2000PSI的刹车压力
C. 用黄系统操纵
D. 使用5次
【单选题】
动力传输组件设在AUTO位，何时自动工作？___
A. 失去蓝系统时
B. 只要探测到绿和黄系统之间有压差
C. 绿和黄系统压差大于500PSI时
D. 绿和黄系统压差大于1000PSI时
【单选题】
飞行中，蓝电动泵失效，蓝系统：___
A. 失效
B. 可由冲压空气涡轮(RAT)恢复
C. 可由动力传输组件(PTU)恢复
D. 以上B和C
【单选题】
飞行中，蓝液压系统可为谁供压？___
A. 冲压空气涡轮和电动泵
B. 发动机泵
C. 动力传输组件
D. 无法被供压
【单选题】
液压油箱正常的增压气源的来源是_____________
A. 1发引气
B. 引气系统总管
C. 地面气源
D. A+B
【单选题】
冲压空气涡轮可以在地面自动伸出吗？___
【单选题】
A320飞机电动泵有________
A. 黄系统和篮系统各一个
B. 仅黄系统有
C. 三个系统各一个
D.
【单选题】
A320的液压系统有_____个液压火警关断valve___
【单选题】
液压油箱预增压力是__________
A. 25PSI
B. 50PSI
C. 75PSI
D.
【单选题】
液压油箱增压气源的来源是_____________
A. 1发引气
B. 引气总管&地面气源
C. A&B
D.
【单选题】
在空中当液压压力减小时,会如何______________
A. 优先valve优先供压给大负载用户
B. 优先valve优先供压给重要系统
C. 优先valve减少供给用户的压力
D.
【单选题】
发动机液压火警关断valve什么时候关闭______________
A. 当发动机停车时自动关闭
B. 当发动机火警按钮松出时
C. 当发动机火警被探测到时自动关闭
D.
【单选题】
在什么情况下冲压空气涡轮(RAT)自动放出且工作__________
A. 飞机在空中且AC1和AC2都断电
B. 飞机在空中且蓝系统电动泵故障时
C. 飞机在空中,速度大于100节且AC1和AC2都断电
D.
推荐试题
【单选题】
Travel in space can be very exciting; ___, it can also be boring and lonely at times.
A. so
B. however
C. thus
D. therefore
【单选题】
Politicians should not ___ in business affairs that might affect their political judgment.
A. engage
B. embrace
C. depart
D. treasure
【单选题】
I wish to ___ a master’s degree in electric engineering after I graduate from college.
A. pledge
B. explore
C. pursue
D. approach
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There is no greater importance ___ cultivating independence in children.
A. in
B. than
C. of
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He has made it very clear ___ we should observe the new rules.
A. what
B. which
C. those
D. that
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It was when I read his letter ___ I realized he had given me huge help.
A. that
B. then
C. before
D. after
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Don’t worry too much, Jane. Your son ___ home already. Let’s go back and check it out.
A. returned
B. will return
C. has returned
D. may have returned
【单选题】
I believe friendship is an essential element of making a healthy, ___ life.
A. flexible
B. rewarding
C. wealthy
D. inquisitive
【单选题】
___ they have written about the behaviors of animals is hardly anything new.
A. That
B. This
C. What
D. Which
【单选题】
No other drugs are as good as this one; it must have been based on a(n) ___ formula (配方).
A. enormous
B. stimulating
C. unique
D. overwhelming
【单选题】
Mothers tend to be too ___ toward their children. They should let them see more of the worl D.
A. hopeful
B. protective
C. modest
D. encouraging
【单选题】
The investigation ___ evidence of a large-scale illegal trade in wild birds.
A. uncovered
B. outweighed
C. overwhelmed
D. evolved
【单选题】
Poor Laura! I feel so sorry for her. When she fell, she hurt her arm and, ___, broke her glasses.
A. in advance
B. in addition
C. over time
D. on the other hand
【单选题】
Showing some sense of humor can be a(n) ___ way to deal with some stressful situations.
A. genuine
B. available
C. effective
D. favorite
【单选题】
It will be worth the efforts even if you fail; the rewards you ___ will be great.
A. reap
B. boast
C. assure
D. cultivate
【单选题】
He suggested transporting the supplies by air. But it is absolutely ___, for it will cost too much.
A. unusual
B. uncertain
C. impractical
D. impressive
【单选题】
The newspaper didn’t mention the ___ of the damage caused by the fire.
A. range
B. level
C. extent
D. quantity
【单选题】
Do you ___ her novels as serious literature or as mere entertainment?
A. classify
B. notify
C. simplify
D. justify
【单选题】
He doesn’t ___ of buying a house this year because the bank has refused to lend him any money.
A. afford
B. make the most
C. run out
D. stand a chance
【单选题】
If you don’t ___ cooking today, we can go out to eat at the new restaurant.
A. would like
B. go on with
C. feel like
D. figure out、
【单选题】
Bullying (恃强欺弱) can ___ a climate of fear and anxiety in school, and prevent students from focusing on their schoolwork.
A. keep back
B. give rise to
C. feel like
D. make use of
【单选题】
Science can now ___ many things which were thought to be mysterious by ancient people.
A. care for
B. lay out
C. account for
D. set up
【单选题】
The school has ___ many after-class activity groups for the pupils to make their spare time more colorful.
A. set up
B. set off
C. set out
D. set down
【单选题】
When he was a small kid, he ___ from his peers because he could read fast and remember whatever he rea D.
A. showed off
B. worked out
C. stood out
D. straightened up
【单选题】
The fall in the number of deaths from heart disease is generally ___ improvements in diet.
A. put up with
B. attributed to
C. added to
D. replaced with
【单选题】
We can be partners for now, but ultimately you have to ___ to develop a new software for our project.
A. keep up
B. fire off
C. make sense
D. take the lead
【单选题】
Emotional Intelligence (情商) could be of practical use in many ___ such as how companies decide which job applicant to hire, how parents should raise their children, how schools should teach the students, and so on.
A. aspects
B. disciplines
C. structures
D. opportunities
【单选题】
The teacher should praise students for their correct answers and also suggest ___ possibilities.
A. unlimited
B. unique
C. alternative
D. essential
【单选题】
In some classrooms, desks are arranged in a U-shape, so the teacher can ___ easily with the students.
A. interrupt
B. interact
C. interpret
D. interview
【单选题】
Computer technology ___ individuals to educate themselves and adapt to a constantly changing job market.
A. lets
B. makes
C. enables
D. provides
【单选题】
Our hope for an enjoyable dinner was instantly ___ when the waiter dropped a salad plate on my hea D.
A. spoiled
B. restricted
C. exploded
D. vanished
【单选题】
___ the world has ever seen has occurred in the information and communications technologies.
A. Great a change
B. The great change
C. A greatest change
D. The greatest change
【单选题】
___ so many people around, it wasn’t convenient to have a long talk with him.
A. As
B. When
C. With
D. Since
【单选题】
Alice used to be terribly shy, but working abroad for a year has completely ___ her.
A. solved
B. transformed
C. characterized
D. regulated
【单选题】
Chinese Mandarin (普通话) is ___ for foreigners to learn because the changes in the tone will totally change the meaning of words.
A. difficult
B. accessible
C. competitive
D. easy
【单选题】
Take action on those things that will have the biggest ___ impact on your life with the least amount of effort.
A. portable
B. positive
C. sophisticated
D. moderate
【单选题】
The adoption of this measure will greatly reduce the ___ of greenhouse gas emissions (排放物), which may help slow global warming.
A. loan
B. decline
C. release
D. response
【单选题】
I think I have a healthy lifestyle. I eat a lot of fruit and vegetables, and I’m a ___ drinker.
A. moderate
B. heavy
C. gradual
D. delicate
【单选题】
In a way the human race needs to improve its mental and physical qualities if it is to deal with the more and more ___ world and meet new challenges.
A. typical
B. complex
C. rational
D. orderly
【单选题】
If a person simply does not care about this activity, it’s ___ impossible to get him to participate.
A. barely
B. seldom
C. hardly
D. practically
