【判断题】
H×D1电力机车低压部分TCU中控制电子组件的工作电压为110√，这一电压等级对生命和健康是危险的
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相关试题
【判断题】
CCBⅡ制动机“第二步闸”移至抑制位后，均衡风缸、列车管、制动缸各压力无变化
【判断题】
CCBⅡ制动机“第三步闸”初制位后：侧缓单阀，制动缸压力下降为0，手柄复位后制动缸压力不恢复
【判断题】
CCBⅡ制动机“五步闸”试验完毕，机车司机室显示模块（LCDM）恢复本机/不补风状态设置
【判断题】
DK-2制动机制动控制器钥匙开关，拨到左边为开，右边为关
【判断题】
DK-2制动机自动制动控制器在运转位，单独制动控制器在运转位，制动控制器钥匙才能关或开
【判断题】
DK-2制动机制动控制器钥匙开关在开位，自动制动控制器、单独制动控制器起作用
【判断题】
DK-2制动机后备制动具有制动位、中立位、缓解位三个操作位置，只能保证全列车的制动、保压、缓解的基本功能
【判断题】
DK-2制动机后备制动，应将自动制动控制器和单独制动控制器手把放运转位
【判断题】
当机车主变压器温度过高，自动降弓，实施故障保护
【判断题】
除紧急制动情况下，EB√是一个全电子制动阀
【判断题】
空压机扳键开关置“强泵”位，空气压缩机1、2均投入工作
【判断题】
和谐型电力机车转向架采用滚动抱轴承半悬挂结构，一系采用高圆螺旋弹簧
【判断题】
BPCP模块控制均衡风缸的压力，相当于DK-1制动机分配阀的作用
【判断题】
和谐型电力机车主电路主要由网侧电路、主变压器、主变流器及牵引电动机等组成
【判断题】
和谐型电力机车压缩机加热回路是辅助电路的一部分
【判断题】
和谐型电力机车网压低于17.5k√时，低压保护环节动作，网压高于31.5k√时，过压保护环节动作
【判断题】
在“定速控制”状态，当机车实际速度低于“目标速度－2km/h”时，TCMS控制机车进入牵引工况
【判断题】
主断路器在主电路发生过流、接地、零压等故障时，须手动断开主断路器
【判断题】
若非操作端大闸在紧急位时会造成操作端大闸无法缓解，制动显示屏上显示“制动机故障－014
【判断题】
和谐型电力机车一组辅助变流器故障后可以由另一组辅助变流器对全部辅助机组供电
【判断题】
和谐型电力机车采用微机网络控制系统，实现了逻辑控制、自诊断功能，而且实现了机车的网络重联功能
【判断题】
自阀运转位20CP响应列车管压力变化，将作用管压力排放
【判断题】
和谐型电力机车有6个带停放单元的制动缸
【判断题】
高压接地开关的主要功能是：当进行机车检查、维护或修理时，把主断路器两侧电路接地
【判断题】
和谐型电力机车，辅助变流器过流故障在5分钟内连续发生两次，该辅助变流器将被锁死，需要解锁时必须切断辅助变流器的控制电源，才可解锁
【判断题】
和谐型电力机车无动力回送时，总风缸向列车管限制充风压力为360kPa左右
【判断题】
和谐型电力机车自阀紧急位时，其上的机械阀动作，列车管压力排向大气
【判断题】
正常情况下，油泵和水泵电机电源来自辅助变流器1
【判断题】
在本机模式下，16号管增加的压力同列车管减少的压力的比率为3.5：1
【判断题】
20CP响应手柄的不同位置，使制动缸产生作用压力为0―350kPa
【判断题】
选择F3键“电空制动”并检查制动屏设置是否正确
【判断题】
拉车长阀（或紧急制动阀）时，机车会产生紧急制动作用，但均衡风缸压力不变
【判断题】
机车乘务员在退勤之前，应将升弓风缸内压缩空气充至900kPa，然后开放塞门U77以备机车再次使用
【判断题】
为了确保适应机车状况的冷却风量和降低运转声音，两台复合冷却器风机和六台牵引通风机电机按照C√CF控制模式进行设定
【判断题】
和谐型电力机车正常运行时，辅助变流器1工作在C√CF方式，辅助变流器2工作在√√√F方式，分别为机车辅助电动机供电
【判断题】
高压隔离开关用来隔离故障受电弓，以免影响机车运行
【判断题】
机车停车后，将弹停制动缸中的压力空气排空，弹停装置动作，机车缓解
【判断题】
和谐型电力机车牵引、制动控制采用恒牵引力（制动力）、准恒速特性控制方式
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【单选题】
He is not a child ___.
A. no more
B. no longer
C. any much
D. any more
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The retired man is used to ___ his two dogs early in the morning.
A. exercise
B. exercising
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It was not ___ midnight that they discovered the children were not in their bedroom.
A. before
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Young ___ he is, he knows how to get along with others.
A. like
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Could you show me where the___ shoes are?
A. Women
B. womens
C. woman
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He succeeded ___ out a lot of things entirely new in the world.
A. in working
B. to work
C. working
D. at working
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It took me a long time to ___ the disappointment of failing the exam.
A. get over
B. get up
C. get into
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She ___ 100 pages of the book today.
A. has already read
B. already reads
C. already read
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He has been ___ for nearly three weeks after the death of his dear pet.
A. sad
B. satisfied
C. evil
D. joyful
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One cannot learn a foreign language well ___he studies hard.
A. unless
B. if
C. as
D. when
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A large number of people___ present at the meeting, which was out of our expectation.
A. was
B. were
C. have
D. has
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When the girls saw the funny man, they couldn't ___ laughing.
A. keep from
B. keep on
C. keep away
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We are glad that we finally managed to get into contact ___ them.
A. at
B. on
C. from
D. with
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This kind of plant___a lot of water at all times.
A. assumes
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C. produces
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Look! Here ___ the famous player.
A. comes
B. come
C. had come
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Uncle Sam sent him a___ bicycle as a birthday present.
A. red sports new
B. sports new red
C. new sports red
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I couldn't find my English-Chinese dictionary___.
A. anywhere
B. everywhere
C. nowhere
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The plane was about to___, and yet I left my ticket behind.
A. take off
B. take on
C. take up
D. take in
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John succeeded ___ what he wanted.
A. to get
B. to getting
C. in getting
D. and getting
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The accident was ___ to careless driving.
A. for
B. likely
C. due
D. because
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With a good command of reading skills, most students can manage to read ___as they could the year before.
A. as twice fast
B. as fast as twice
C. as twice as fast
D. twice as fast
【单选题】
Some famous singers live on the ___from their record sales.
A. salary
B. price
C. bill
D. income
【单选题】
_____of them thinks that is a good idea.
A. Anyone
B. No one
C. None
D. Someone
【单选题】
Don't be too ___about things you're not supposed to know.
A. strange
B. amusing
C. curious
D. conscious
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It was in 1969 ___the American astronauts succeeded in landing on the moon.
A. when
B. the moment
C. which
D. that
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___people in the world are sending information by e-mail every day.
A. Several million
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He___less time reading stories about film stars than before.
A. takes
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Selecting a mobile phone for personal use is no easy task because technology___so rapidly.
A. is changing
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The taxi driver always reminds passengers to ___their belongings when they leave the car.
A. keep
B. catch
C. hold
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Little Tom is used to getting up ___eight every morning.
【单选题】
If the doctor had been available, the child _______.
A. would not die
B. could not have died
C. might not die
D. should not have died
【单选题】
If Mary___shopping this afternoon, please ask her to write a shopping list first.
A. will go
B. goes
C. went
D. has gone
【单选题】
These desks and chairs ___to the children in the mountain villages next week.
A. are sent
B. will send
C. have sent
D. will be sent
【单选题】
Every society has its own peculiar customs and ___of acting.
A. attitudes
B. behavior
C. ways
D. means
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China is ___the Great Wall.
A. on
B. famous
C. famous for
D. famous as
【单选题】
The dog was tearing the cloth___its teeth.
A. with
B. by
C. through
D. in
【单选题】
A man should not be judged always ___what he says.
A. by
B. in
C. with
D. to
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We will have a ___holiday after the exam.
A. two month
B. two-month
C. two month's
D. two-months
【单选题】
Mr Wang is going to teach you maths ___one year.
A. with
B. on
C. for
D. to
【单选题】
The population of the earth ___increasing fast.
A. is
B. are
C. were
D. have been
