【判断题】
使用机车动力制动,在需要缓解时,应先解除动力制动,再缓解空气制动。
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相关试题
【判断题】
双机(或多机)牵引使用动力制动时,前部机车使用后,再通知后部机车依次使用;解除动力制动时,根据前部机车的通知,后部机车先解除,前部机车后解除动力制动。
【判断题】
在正常情况下,非操纵端控制电路的各开关均应置于断开位,锁闭琴键开关,取出自阀、单阀手柄。
【判断题】
设有双端司机室的机车,司机必须在运行方向前方司机室操纵。
【判断题】
施行紧急制动时,要及时解除机车牵引力。
【判断题】
列车在长大下坡道运行时,应遵循动力制动为主,空气制动为辅的原则。
【判断题】
列车在隧道区段运行时,运行条件差,瞭望困难,内燃机车柴油机燃烧状态不良,功率不能正常发挥,油耗增加。
【判断题】
为防止列车断钩,运行途中制动调速,严禁未排完风施行缓解,列车未完全缓解就加速。
【判断题】
为防止列车断钩,运行途中货物列车惰力运行后,再加速不得过快,避免车钩拉伸过猛。
【判断题】
为防止列车断钩,进站停车时货物列车要防止低速缓解、二次制动。
【判断题】
列车制动减压排风未完成时不应再次追加。
【判断题】
一次追加减压量超过初次减压量,会使列车制动力急剧增加,不利于平稳操纵。
【判断题】
电空制动机的最大优点是全列车能迅速实现制动和缓解作用,且列车前、后动作一致性好,适用于高速旅客列车和长大货物列车。
【判断题】
在我国铁路车辆上均装有手动制动机,用于空气制动机故障时以及调车作业、坡道停留时的制动。
【判断题】
制动盘装在车轴上的叫轴盘式盘形制动基础制动装置。
【判断题】
在坡道上停留时间较长时,为防止空气制动机因制动缸漏泄发生自然缓解,还应拧紧手制动机。
【判断题】
折角塞门用来开通或遮断制动主管与制动软管之间的空气通路。
【判断题】
总风管既是一根压力空气输送管,也是一根传递列车制动、保压和缓解指令的控制管。
【判断题】
截断塞门关闭的车辆(简称“关门车”)无空气制动作用。编入列车的关门车数以及关门车在列车中所处位置限制须符合《技规》规定。
【判断题】
所谓灵敏度就是制动机的感度,它是评价车辆制动机性能的主要指标之一。
【判断题】
空气波是属于一种振动波,具有波的性质。空气波的传播速度称为空气波速。
【判断题】
制动作用或缓解作用沿列车长度方向的传播速度分别称为“制动波速”或“缓解波速”。
【判断题】
制动波速(或缓解波速)是用来评价列车的制动(或缓解)灵敏度。
【判断题】
在无线灯显调车时,自收到紧急停车信号后,如速度不为零则常用制动。
【判断题】
在无线灯显调车时,信号与口令不符时应立即停车。
【判断题】
LKJ-2000运行监控记录装置,参数设定操作,在机车运行或停车时均可操作。
【判断题】
LKJ-2000型监控记录装置,对制动机实验操作,装置均一一记录。
【判断题】
LKJ-2000运行监控记录装置只有在降级状态下,[开车]键才能起作用。
【判断题】
LKJ-2000运行监控记录装置机车越过信号机时距离显示仍有余值,经过一段距离后才显示O,这种零显示出现在信号位置之后的过机误差称为滞后误差。
【判断题】
监控装置启动停车模式时,不允许使用“向前”键进行车位调整。
【判断题】
LKJ-2000运行监控装置退出调车状态时,在停车状态下按压[调车]键就退出调车状态。
【判断题】
LKJ-2000运行监控记录装置,当机车运行中发生“常用制动”指令后乘务员一次按压[缓解]键完成缓解操作。
【判断题】
LKJ-2000运行监控记录装置,在屏幕显示器上只能利用IC卡进行文件转储操作。
【填空题】
1.一般电阻的阻值与___成正比,与导体截面积成反比。
【填空题】
2.电阻串联电路中总电流与通过各用电器的___相等。
【填空题】
3.当把三极管接入电路中时,___电流的微小变化,将引起集电极电流及发射极电流较大的变化。
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【判断题】
营业收入指企业经营业务的确认的收入总额,包括主营业务收入和其他业务收入
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25“本年利润”账户将收入与费用进行配比的账户,因此属于损益类账户
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26企业提取盈余公积的主要目的是为了防范企业经营风险等需要
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27所谓平行登记是指对所发生的每一项经济业务,一方面要以会计凭证为依据登记有关总分类账,又要以登记好的总分类账户为依据,将其拆分后登记所属的明细分类账
【判断题】
28原始凭证金额有错误的,应当由出具单位重开,不得在原始凭证上更改。
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同会计科目的分类相对应,账户应分为总分类账户和明细分类账户
【填空题】
1.My job varies between the extremely tedious and the annoyingly busy. ________ I think I’m happier during the really busy times; no time to think about how bored I am.
【填空题】
2.It is the nature of the wise _________ pleasures, but the foolish to be a slave to them.
【填空题】
3.I figure out a good team of dogs, hitched to a light sled, can_________ 1,000 pounds of goods.
【填空题】
4.In the story ,the little girl has a _________ stepmother, who makes her life a misery.
【填空题】
5.Nothing ever becomes real till it is experience-even a proverb is no proverb to you till your life _________ it.
【填空题】
6.Nowadays almost all libraries are finding it increasingly difficult to remain within their _________.
【填空题】
7.You can increase a tyre’s grip in winter by slightly _________its pressure.
【填空题】
8.Lake Superior, Huron, Erie, and Ontario are shared by the United States and Canada, and from part of the _________between the two countries.
【填空题】
9.The police are investigating the three men allegedly _________organizing and carrying out the bank robbery.
【填空题】
10.I do not doubt in the least that inflation leads to _________decline.
【填空题】
11.A blizzard _______________great drifts of snow across the lake.
【填空题】
12.Tim says _________everybody will be affected by the tax increase, but I’m sure he’s exaggerating.
【填空题】
1.China’s economic success over the past three _________has raised the living standards of hundreds of millions of Chinese citizens.
【填空题】
2.Citibank picked the chief executive of Etang.com as its first Chinese customer Thursday to open an account at its new branch in the _______Pease Hotel along Shanghai’s fabled waterfront.
【填空题】
3.The United States last Wednesday _________tariffs关税 of up to 30 percent on a range of foreign steel imports to help protect its domestic国内的industry.
【填空题】
4.Although he was raised as a Christian, he’s not really very _________.
【填空题】
5.You can distinguish between frogs ands toads蟾蜍 in the following way: frogs have _________bodies, long limbs, and a smooth skin, and toads have stouter bodies, short limbs, and dry skin.
【填空题】
6.From the airplane window I could see a _________of city streets.
【填空题】
7.Aunt Pat smiled at her little niece and _________her to eat.
【填空题】
8.Dr. Rich Hamilton is planning his own World Wide Web _________on the Internet to provide assistance to anyone who asks for medical help.
【填空题】
9.It is difficult to estimate the number of people doing part-time jobs _________
【填空题】
10.The president _________his foreign minister, Mr. Burns, to act as representative to the international conference to be held in Tokyo next month.
【填空题】
11.Advances in telecommunications have meant that it is just as easy to work from a computer _________at home as it is from a town center office.
【填空题】
12.Until the new gym is built, you have no option but _________existing buildings which may or may not suit your immediate目前的requirements.
【填空题】
1.According to some scientists, global warming _________the survival of the whole human race.
【填空题】
2.The number of visitors from parts of Scotland not including the Edinburgh area was, in fact, relatively small19%, and exceeded the number of overseas visitors16%_________.
【填空题】
3.The early Spaniards established a chain of mission _________the local population along the San Antonio River.
【填空题】
4.It was common practice then that when the store owners wanted to go on vacation they simply _________
【填空题】
5.As they didn’t have relatives or friends there they often _________around nearby malls when they got bored.
【填空题】
6.To make a birthday card, you can simply cut out some funny or pretty pictures from magazines, _________them _________a piece of card and then write your message inside.
【填空题】
7.She picked up the receiver and, _________ asking the caller to hold on, went off to tell Jack that he was wanted on the phone.
【填空题】
8.To relax himself for a little while, he rose from the computer desk, walked across the room towards the window and stretched both arms upwards and _________.
【填空题】
9.The new product has a pair of small loudspeakers fitted inside, which you can easily _________ your computer’s sound card.
【填空题】
10.Music in fact is a _________language of a non-verbal nature which is rich in expression.