【判断题】
[高级工] KLD-40PU型空调机组，机组包括全封闭压缩机2台，离心风机1台，蒸发器1台，冷凝器2台，电加热器1台，压力控制器4个，低温保护继电器1个，气液分离器2台，各自组成两个制冷系统
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相关试题
【判断题】
[高级工] KLD-40PU型空调机组40是表示机组制冷量约为40kW
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[高级工] 备用空调车的发电车须每隔一个月启动机组一次
【判断题】
[高级工] 单元式空调机组中修周期为三年
【判断题】
[高级工] 当环境温度低于1６℃时，严禁开启空调设备制冷
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[高级工] 当环境温度低于1６℃时，严禁开启空调设备制冷
【判断题】
[高级工] 当空调机组压缩机启动后，制冷剂流过起截流作用的毛细管时，会引起毛细管的颤动，如果毛细管没有颤动则说明没有制冷剂流过这根毛细管
【判断题】
[高级工] 动车组在段内或整备所进行整备作业后，司机必须亲自检查确认高压室内、地沟内和车下无作业人员，并与副司机呼唤应答、鸣笛后方可升弓
【判断题】
[高级工] 发电车供电的空调客车，须在列车始发前1h开启空调设备对车厢进行预冷、预热；终到后５０min卸载停机。接车供电的空调客车，在列车始发前５０min连挂机车后须立即开启空调对车厢进行预冷、预热
【判断题】
[高级工] 凡运行途中空调客车出现电器烧损时，均须停机进行故障确认
【判断题】
[高级工] 高低压力控制器的两个气室，分别与压缩机的排气管路和吸气管路相通
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[高级工] 集中供电空调列车，库内停留期间须使用外接地面电源进行检修
【判断题】
[高级工] 交流和直流耐压试验都是利用高压电源进行试验，故都属于破坏性试验
【判断题】
[高级工] 客车空调机组在冬季简单工况应按通风机、冷凝器排风扇，制冷压缩机与废气排风扇的先后顺序动作
【判断题】
[高级工] 客车空调机组在夏季简单工况应按通风机、电热器和废气排风扇的顺序动作
【判断题】
[高级工] 客车空调控制电路采用空气开关之后，可以不用热继电器和熔断器
【判断题】
[高级工] 客车空调装置包括通风、制冷、加热、加湿、自动控制等设备
【判断题】
[高级工] 空调机制冷系统进行真空检漏时，可以用系统本身的压缩机来抽真空
【判断题】
[高级工] 空调机组通风机室的顶盖打开时通风电机的工作电流要小于顶盖关闭时的工作电流
【判断题】
[高级工] 空调机组与车顶之间只有一道防水密封垫
【判断题】
[高级工] 空调客车的空调温控器应设定为：冬季14～16℃，夏季22～24℃
【判断题】
[高级工] 空调客车对客室相对湿度的要求是夏季不大于70％，冬季不小于30％
【判断题】
[高级工] 空调客车空调控制柜中转换继电器是用来均衡压缩机工作时间的
【判断题】
[高级工] 空调控制柜线路图不正确，在运用客车质量鉴定中属于A类故障
【判断题】
[高级工] 空调配电室内除车辆人员外，其他人不得堆放杂物
【判断题】
[高级工] 空调器的蒸发温度越低，吹出的风越冷，房间降温就越快，制冷量就越大
【判断题】
[高级工] 空调总电源开关合上后，控制柜所有工作和故障灯亮是由于电源零线断开
【判断题】
[高级工] 毛细管可将高温高压液体变成低温低压液体
【判断题】
[高级工] 毛细管可将高温高压液体变成低温低压液体
【判断题】
[高级工] 目前客车空调机组温度控制器广泛采用电子式温度控制器
【判断题】
[高级工] 全列空调列车额定负载总和不得超过发电车额定输出功率
【判断题】
[高级工] 全列空调列车额定负载总和不得超过发电车额定输出功率
【判断题】
[高级工] 全列空调列车供电制式不需一致
【判断题】
[高级工] 全列空调列车上加挂外属客车时，只允许编挂在尾部，原则上不供电
【判断题】
[高级工] 我国空调客车目前采用的空调装置有集中式和单元式两种形式
【判断题】
[高级工] 在电气化铁路上，接触网的各导线及其相连部件，通常均带有高压电，因此禁止直接或间接地（通过任何物件，如棒条，导线，水流等）与上述设备接触
【判断题】
[高级工] 制冷空调设备的产品铭牌上标注的制冷量为其实际制冷量
【判断题】
[高级工]BSP青藏车制氧机压缩机供电为AC380V
【判断题】
[高级工]CRNQ-0500-TFD型压缩机对所提供的三相电源无相序要求
【判断题】
[高级工]ZR72KC-TFD型压缩机对所提供的三相电源无相序要求
【判断题】
[高级工]当蒸发温度不变时，冷凝温度升高，则制冷量减小
推荐试题
【单选题】
As a college student, you should enjoy learning and get yourself ___ in those things that interest you.
A. concerned
B. devoted
C. involved
D. pursued
【单选题】
The name of Hitler (希特勒) has always been associated with war and ___ killing in the minds of those people who lived through World War Two.
A. imaginary
B. multiple
C. indispensable
D. massive
【单选题】
He works hard every day to make more money, but he ___ his health, time with his family, and the hobbies he once love D.
A. neglects
B. reminds
C. ceases
D. Declines
【单选题】
I asked a passenger sitting beside me if our train was the Westlake Express train, and he said he ___ of it.
A. not even heard
B. had not even heard
C. even not heard
D. ever had not heard
【单选题】
Whatever you say in the paper has to ___ your own thinking; hence simply repeating the professor’s opinions or whatever is in the readings will not get you very far.
A. ignore
B. arouse
C. reflect
D. release
【单选题】
We are sorry to know that they did not succeed ___ the project for lack of necessary funds.
A. to fulfill
B. to have fulfilled
C. in fulfilling
D. with fulfilling
【单选题】
It is surprising that fewer students were prepared to undertake the ___ to hand in written work on a regular basis, or to study over long periods.
A. engagement
B. commitment
C. authority
D. aspiration
【单选题】
Emily felt hurt and ___ by a close friend who had borrowed a considerable sum of money to pay for a house and then took it as a gift, never thinking of giving back the money.
A. conflicted
B. curbed
C. swollen
D. betrayed
【单选题】
In 1988 the old system was ___ in the country and a new system was introduced to take effect in 1990.
A. transmitted
B. abolished
C. assumed
D. compensated
【单选题】
We should not ___ ourselves to the classroom. We should go out of the classroom, see the world and talk to others as much as we can.
A. entertain
B. confine
C. assign
D. involve
【单选题】
I have always been grateful ___ Fred __the generous and helpful information when I was at the crossroads.
A. to … for
B. to … with
C. for … with
D. for … to
【单选题】
I think we both need to ___ the past, be happy about what we had for a time, learn from our experiences, and move on from there.
A. let go of
B. give authority to
C. make sense of
D. keep up with
【单选题】
My brother and I managed to ___ with each other and we soon made peace after a week’s quarrel.
A. heal
B. reconcile
C. respond
D. advocate
【单选题】
The two robbers in a stolen car tried to ___ a police roadblock (路障), but faile D.
A. break in
B. break off
C. break up
D. break through
【单选题】
Because of his long illness, Lee’s English level had dropped, but he was determined to ___ the other students by working harder.
A. put up with
B. catch up with
C. get along with
D. fill up with
【单选题】
We appreciate your efforts in making changes in your schedule and think that this new arrangement is now ___ to us.
A. agreeable
B. sustainable
C. portable
D. indispensable
【单选题】
The woman who died in a car crash last Saturday in the suburbs has been ___ as Kate Johnson, a 25-year-old office clerk.
A. justified
B. identified
C. notified
D. classified
【单选题】
My nephew failed in the College Entrance Examination, and we were all very sorry that he did not ___ to the university.
A. take it
B. get it
C. make it
D. succeed it
【单选题】
Almost half of that group will experience stress ___ enough to call for professional help.
A. tense
B. moderate
C. bearable
D. intense
【单选题】
If you grow too fast your entire economy could completely shut down and bring growth to a(n) ___.
A. halt
B. cease
C. peak
D. epidemic
【单选题】
I tried my best to drive inside in order to avoid the edges that might make me ___ the steep slope.
A. slip down
B. settle down
C. bring down
D. turn down
【单选题】
When the driver heard that there was a bomb on the bus, he immediately ___ to the side of the highway and radioed the police.
A. put out
B. took off
C. pulled over
D. slipped off
【单选题】
She was very ___ to become a manager in our customers’ office, but finally accepted our offer.
A. eager
B. intelligent
C. ridiculous
D. reluctant
【单选题】
In the race, it looked as if he would be the first, but then another young man who was close behind him put on speed and ___ by a few seconds.
A. beat him for it
B. beat him to it
C. beat him up
D. beat it to him
【单选题】
It is really helpful to have someone like you that we can ___ and count on during difficult times.
A. lean on
B. get to
C. hang on
D. get by
【单选题】
Women have a greater ability to ___ names with faces than men do, and they are also better at recalling lists.
A. associate
B. compare
C. engage
D. involve
【单选题】
He was always ready to help others and managed to ___ his friends ____being hurt.
A. expose … to
B. confine …to
C. restrict … from
D. shield … from
【单选题】
Older people are less likely to be ___ their negative emotions (情绪) and more likely to focus on the positive.
A. reserved for
B. caught up in
C. beat up to
D. counted on
【单选题】
I don’t have any bandage, so I have to ___ pressure to the wound to keep the bleeding down.
A. apply
B. involve
C. fulfill
D. establish
【单选题】
It is important that whichever candidate (候选人) is picked the loser should accept the defeat ___.
A. in advance
B. with great pride
C. with good grace
D. in large part
【单选题】
___ that new homes cost more than older homes, but that is not true across the country anymore.
A. It used to be
B. It is used to be
C. It used to being
D. It is used to being
【单选题】
The boss ___ his employees to work longer hours as the company is dreadfully short of staff at present.
A. called on
B. signed up
C. cared for
D. set up
【单选题】
The president’s visit and ___ discussions led to a plan that aimed to improve the trade relations between the two countries.
A. emerging
B. subsequent
C. consequent
D. Submerging
【单选题】
The author ___ his general idea mainly through statistics and results obtained from a survey (调查) about auto customer services in the United States.
A. assumes
B. engages
C. illustrates
D. represents
【单选题】
People in this town starved, several buildings were bombed and crime ___ because you had to steal to eat.
A. eroded
B. reflected
C. released
D. soared
【单选题】
Olympic recognition for bodybuilding (健美) remains ___ since some argue that bodybuilding is not a sport because the actual contest does not involve the same sort of efforts as “real” sports.
A. controversial
B. conventional
C. characteristic
D. influential
【单选题】
Tom tried to justify his absence from the meeting by ___ that he had been ill that day.
A. admitting
B. advocating
C. claiming
D. citing
【单选题】
___ the huge financial benefits, biological companies have been rushing to set up laboratories and new research projects.
A. Aware
B. Aware of
C. Not aware
D. Not aware of
【单选题】
Unfortunately, ___ lack of funds, the studies he began just two months ago, had to be ended early.
A. out of
B. in addition to
C. owing to
D. to begin with
【单选题】
With a good command of English, he soon got ___ to working with British people.
A. accustomed
B. consistent
C. relevant
D. responsible
