【填空题】
44.粘度是内燃机车柴油机油主要性能参数之一,我国机油的分类就以此为依据。粘度指标通常以___来衡量。P91T401
查看试卷,进入试卷练习
微信扫一扫,开始刷题
相关试题
【填空题】
45.油脂粘度的变化取决于油脂的___。P91T401
【填空题】
46.机车牵引电动机的全悬挂分为架悬式和___ 。P94T414
【填空题】
47.牵引电机全部支承在一系弹簧之上,就称为牵引电动机的___。P95T416
【填空题】
48.由司机控制、通过制动装置产生的,与列车运行方向相反并可根据需要调节的外力称为___ 。P104T438
【填空题】
49.以压缩空气为动力,通过控制传动装置使闸片压紧装在车轴___上制动盘产生摩擦而形成制动力的方式称为 ___。P104T439
【填空题】
50.机车车辆制动时,闸瓦抱住车轮使其停止转动,车轮继续在钢轨上滑动,这种现象叫___。 P105T445
【填空题】
51.人工撒砂方法分为线式撒砂和___撒砂两种。P106T446
【填空题】
52.自阀___施行制动时起,至列车停车或缓解时止,列车所走行的距离叫 ___ 。P109T460
【填空题】
53.在列车制动计算中,列车制动距离Sz 等于空走距离Sk 与___Se 之和。P109T460
【填空题】
54.《机车操作规则》规定:制动管定压为500kPa时,最大有效减压量为___。P109T462
【填空题】
55.车轮擦伤后继续运行时,将对轨面产生锤击作用,___越高,锤击作用越大,不但增加了机车、车辆振动,缩短机车部件使用寿命,而且会损伤钢轨和线路。P110T467
【填空题】
56.机车运行中出现蛇行运动、沉浮运动、摇头振动、侧滚运动,轮轨间清洁与接触状态变化以及机车各动轮直径的大小差异,使轮轨间发生某种程度的滑动,都会使___系数发生变化。P112T470
【填空题】
57.在列车制动初期,列车中各车辆的制动缸压力要经过一段时间自列车前部向列车后部顺序产生并逐渐达到___。P112T471
【填空题】
58.列车起动时,几乎没有___,以轴颈与轴承的摩擦为主。P113T476
【填空题】
59.列车的附加阻力包括坡道阻力、___和隧道阻力。P113T477
【填空题】
60.列车运行在曲线地段时,由于内、外轨___的不同将使车轮相对于钢轨的纵向、横向滑动加剧。P113T478
【填空题】
61.未加装切换阀的机车:制动缸压力=2.5×___。P113T480
【填空题】
62.由于列车起动时的阻力较大,特别是重载、长大货物列车在起动时,若列车中大部分车辆的车钩是处于___状态的,可能使列车起动困难。P114T484
【填空题】
63.货物列车压缩车钩时的退行距离要根据实际情况适当掌握,禁止因压缩车钩不当造成列车尾部越过___。P114T484
【填空题】
64.运行中施行常用制动时,应考虑列车速度、线路情况、牵引辆数和吨数、车辆种类以及闸瓦压力等条件,准确掌握制动时机和___。P115T486
【填空题】
65.列车施行常用制动时,货物列车运行速度在___以下时,不应缓解列车制动。P115T486
【填空题】
66.少量减压停车后,应追加减压至___及以上。P115T486
【填空题】
67.运行中需要调速时,应首先使用动力制动,当动力制动不能控制列车___时,要及时配合使用空气制动。P116T487
【填空题】
68.列车在长大下坡道运行需缓解列车制动时,应先缓解空气制动,再逐步解除___制动。P119T495
【填空题】
69.列车进站前施行调速制动,待列车到预定地点且速度降至所需要速度时进行缓解;进站充满风后再次施行停车制动,使列车停于站内预定地点,这种操纵方法叫作___。P119T498
【填空题】
70.防止列车断钩要注意在列车起动时,列车完全缓解后再起动,伸开车钩再___。P121T506
【填空题】
71.用压力空气作为动力并用空气压力的变化来操纵的制动机,叫做___。P126T521
【填空题】
72.用人力转动手轮或用杠杆拨动的方法,使闸瓦压紧车轮踏面而达到制动的目的的制动机称为___。P126T521
【填空题】
73.用闸瓦压紧车轮踏面,使其发生摩擦阻力而产生制动作用的制动方式称为___ 。P127T522
【填空题】
74.具有三压力机构阀的自动制动机,分配阀的动作由制动管 ___ 和制动缸三种压力来控制。P127T525
【填空题】
75.制动机的灵敏度分为制动灵敏度和 ___ 灵敏度。P140T549
【填空题】
76.制动灵敏度又分为紧急制动灵敏度和___灵敏度。P140T549
【填空题】
77.列车的缓解作用沿列车长度方向由前向后逐次发生,习惯上叫作 ___ 。P141T551
【填空题】
78.司机使用列车紧急制动后,需经___ 后才可以充气缓解。P150T581
【填空题】
79.LKJ-2000监控装置测距仪显示界面的主窗口区位于中间,设有 ___的显示框。显示测距仪的各种状态信息。《LKJ2000型列车运行监控记录装置》P217
【填空题】
80.LKJ-2000监控装置测距仪显示器按压【返回】键可以忽略 ___ 操作,返回原界面。进入子状态窗口界面时,按压【返回】键可以返回上一级窗口界面。《LKJ2000型列车运行监控记录装置》P217
【填空题】
81.LKJ-2000监控装置测距仪显示界面的状态或提示栏区呈条状,位于屏幕下侧,指示___ 下的帮助或提示信息。《LKJ2000型列车运行监控记录装置》P217
【填空题】
82.LKJ-2000监控装置测距仪显示器的测距按键包括___ 、【站中心】、【侧线】、【进岔】、【出岔】、【正/反】共6个按键。《LKJ2000型列车运行监控记录装置》P217
【填空题】
83.LKJ-2000监控装置测距仪显示界面的标题栏呈条状位于屏幕上侧,显示日期时间及___ 名称。《LKJ2000型列车运行监控记录装置》P217
【填空题】
84.LKJ-2000监控装置测距仪设定好测距操作,机车动车经过首架信号机时,按压 ___ 键,产生一条记录,并转入测距运行状态。《LKJ2000型列车运行监控记录装置》P218
推荐试题
【单选题】
No sooner had we reached the top of the hill ______ we all sat down to rest.
A. when
B. then
C. than
D. until
【单选题】
___ energy under the earth must be released in one form or another, for example, an earthquake.
A. Accumulated
B. Gathered
C. Assembled
D. Collected
【单选题】
Please ___ me for my rudeness. I really do not know the custom here.
A. engaged
B. comfort
C. execute
D. forgive
【单选题】
Sometimes it is very difficult to ___ some of the English words. Even the native speaker cannot help.
A. decrease
B. create
C. define
D. delight
【单选题】
In the wife’s eyes, his ___ to their marriage life is far from perfect.
A. requirement
B. commitment
C. participation
D. reflection
【单选题】
This newspaper often ___ the government’s opinion, not the public opinion.
A. affects
B. reacts
C. reflects
D. recognizes
【单选题】
It is predicted that heavy rains are ___ to flood the area in a few days.
A. frightening
B. threatening
C. scattering
D. warning
【单选题】
I chose to work abroad to improve my career ___.
A. future
B. path
C. prospect
D. expect
【单选题】
Long before I ever went there, Africa was alive in my ___.
A. image
B. imaginary
C. imaginative
D. imagination
【单选题】
The spectacle of the aurora may appear to dazzle and ___ the observer’s eye.
A. enchant
B. charm
C. fascinate
D. draw
【单选题】
The top prize has enhanced the musician’s ___.
A. fame
B. status
C. courage
D. faith
【单选题】
Compared with Westerners, the ___ use less butter. They prefer the very healthful peanut oil.
A. foreigners
B. Southerners
C. Northerners
D. Orientals
【单选题】
Within a few days she had become seriously ill, ___ great pain and discomfort.
A. surviving
B. suffering
C. affecting
D. accepting
【单选题】
People of their generation who lived through World War II have ___ memories of confusion and incompetence.
A. vivid
B. strong
C. acute
D. profound
【单选题】
Not a breath of fresh air ___ the long white curtains.
A. blew
B. stirred
C. whirled
D. stung
【单选题】
Figures showed customer complaints had ___ to record levels and profits were falling.
A. added
B. climbed
C. accumulated
D. soared
【单选题】
Thanks for the advice, but this is something I have to ___ out myself.
A. fulfill
B. identify
C. figure
D. claim
【单选题】
A ___ monument has been erected in Tian An Men Square in honor of the people’s heroes.
A. magnificent
B. gorgeous
C. huge
D. marvelous
【单选题】
Vietnam made an official ___ that the meeting be postponed.
A. require
B. requirement
C. request
D. agreement
【单选题】
Luke was allowed to sit directly behind the pilot and ___ with him.
A. converse
B. inverse
C. perverse
D. diverse
【单选题】
Maybe this work is not ___, but it will live for a while.
A. mortal
B. deadly
C. immortal
D. worldly
【单选题】
This is why emerging economies set themselves to ___ vast foreign currency reserves in this decade.
A. gather
B. accumulate
C. accelerate
D. assemble
【单选题】
This will enable the audience to sit in ___ while watching the shows.
A. comfort
B. rest
C. relax
D. cozy
【单选题】
Throughout the house, the views are a constant source of surprise and ___.
A. grief
B. pleasant
C. happy
D. delight
【单选题】
Imagination is sometimes more ___ than reality.
A. vivid
B. real
C. bright
D. rich
【单选题】
It is but a step from the ___ to the ridiculous.
A. interest
B. top
C. bottom
D. sublime
【单选题】
My educational ___ is simple: learning should be fun.
A. philosophy
B. psychology
C. physiology
D. physics
【单选题】
I chose to work abroad to improve my career ___.
A. future
B. path
C. prospect
D. expect
【单选题】
Meg stared at her ___ in the bedroom mirror.
A. shadow
B. reflection
C. figure
D. shape
【单选题】
Such technology, however, remains firmly in the ___ of science fantasy.
A. realm
B. region
C. direction
D. district
【单选题】
Long before I ever went there, Africa was alive in my ___.
A. image
B. imaginary
C. imaginative
D. imagination
【单选题】
As a member of the International Olympic Committee her fares and hotel ___ were paid by the IOC.
A. fees
B. allowances
C. expenses
D. money
【单选题】
If they were captured they wished to die, believing that they would go to ___.
A. parasite
B. paradise
C. paraphrase
D. paralyze
【单选题】
Have you ever read Jane Austin's ___ novel Pride and Prejudice?
A. classical
B. class
C. classified
D. classic
【单选题】
She says that being with a ___ mate, one will naturally forget all the worries.
A. heart
B. spirit
C. soul
D. brain
【单选题】
For teenagers, pregnancies, alcoholism, drugs and ___ are all part of the same sad resume.
A. dropouts
B. drop-in
C. drop-off
D. drop-by
【单选题】
The teacher required that no books ___ all over the place in the study.
A. are scattered
B. be scattered
C. were scattered
D. have scattered
【单选题】
Herbs have been used for centuries to endow a whole range of foods ___ subtle flavors.
A. for
B. in
C. with
D. by
【单选题】
He ___receive two specific compliments than twenty vague generalities.
A. should rather
B. would rather
C. would better
D. had rather
【单选题】
Orlando, a city in Florida, ___ for its main attraction, Magic Kingdom.
A. which is well known
B. is well known
C. well known
D. being well known