首页
登录
职称英语
What is hydroplaning? It may happen on the following occasions: a【D1】___
What is hydroplaning? It may happen on the following occasions: a【D1】___
游客
2023-10-15
11
管理
问题
What is hydroplaning?
It may happen on the following occasions:
a【D1】______moves too quickly along a wet road:
a layer of water accumulates【D2】______ :
they lift up and lose traction:
the driver【D3】______.
What actions has NASA taken?
They【D4】______a lot of data.
They produced a【D5】______.
They published the equation【D6】______ , along with information about the【D7】______
of water depth,【D8】______ , tire tread, and vehicle weight on hydroplaning risk.
Safety tips
Use well-treaded, fully【D9】______tires.
Do not slam on the【D10】______if you skid on wet pavement. [br] 【D5】
In this section, you will hear a short passage. For questions 21—30, complete the notes using three words or fewer for each blank The passage will be read twice. Remember to write the answers on the answer sheet.
Hydroplaning happens when a vehicle moves too quickly along a wet road. A layer of water accumulates under the tires: they lift up and lose traction: the driver loses control.
Now, what does NASA have to do with hydroplaning? Here’s a historical look at the science story. Hydroplaning is a relatively new phenomenon for humans, given that the combination of high speed and smooth pavement that’s necessary has only fairly recently become possible.
In fact, it wasn’t until 1957 that a tire treadmill study first experimentally demonstrated hydroplaning "in action". That study was motivated by airplanes. Hydroplaning had been causing a lot of problems for pilots landing on wet runways.
Here’s where NASA comes in. NASA scientists wanted to figure out what hydroplaning was all about. So, they collected a lot of data, and produced a mathematical formula to illustrate how quickly a vehicle could travel on a wet surface before entering hydroplane mode.
They published the equation in 1963, along with information about the effects of water depth, paving technique, tire tread, and vehicle weight on hydroplaning risk.
This publication offered several important safety tips. For example, use well-treaded, fully inflated tires and don’t slam on the brakes if you skid on wet pavement.
These suggestions may sound commonplace, and we now also know that vehicles with antilock brakes require slightly different hydroplane handling than those without. However, we can thank those NASA scientists from fifty years ago for getting the word out, and helping to keep all drivers— on runways and roads—safer on rainy days.
选项
答案
mathematical formula
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3100593.html
相关试题推荐
Lookatthefollowingpicture.Pleasewriteanarticleentitled1’OurDisappearin
Youhavereadthefollowingadvertisementinamagazine.[img]2012q2/ct_eyyjscz2
Writeaboutthefollowingtopic.Inmanycountries,increasingnumbersofyoung
Youseethefollowingadvertisementinaninternationalmagazine.Writeale
Whathappenswhenonestudenthurtsanother’sindividualrights?Standardsa
Whathappenswhenonestudenthurtsanother’sindividualrights?Standardsa
Whathappenswhenonestudenthurtsanother’sindividualrights?Standardsa
Whathappenswhenonestudenthurtsanother’sindividualrights?Standardsa
WhichofthefollowingstatementsaboutDr.Smallisprobablytrue?[originaltex
Readthefollowingadvertisementandthenwritealetterofapplication.Don’ts
随机试题
Formorethan2,000years,aliberaleducationhasbeentheidealoftheWes
2013年7月13日11时左右,W企业燃气车间主任申某在车间巡视检查,发现15×
在项目施工过程中,高处坠落事故发生的频率很高,因此有效控制高处作业风险是保证作业
车载式激光构造深度仪可用于()。A.新建路面的工程质量验收 B.改建路面的工程
劳动统计中,( )不可作为失业人员统计判断的因素。A.年龄 B.工作能力
不属于药物信息咨询服务内容的是()。A.药物不良反应 B.药物配伍禁忌 C
接地引下线导通测试电流不小于()A。2$;$10$;$5$;$0.5
两个相互独立的随机变量X与Y的标准差分别为Var(X)=2和Vaa(Y)
()是指对基于量化方法计算出的市场风险计量结果来设定限额。A.头寸限额
(2018年真题)永续年金既无现值也无终值。() A.正确 B.错误
最新回复
(
0
)