首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
What is hydroplaning? It may happen on the following occasions: a【D1】______moves too quickly along a wet road: a lay
What is hydroplaning? It may happen on the following occasions: a【D1】______moves too quickly along a wet road: a lay
admin
2016-12-08
34
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.
【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://kaotiyun.com/show/2KAK777K
本试题收录于:
B类竞赛(英语专业本科专科)题库大学生英语竞赛(NECCS)分类
0
B类竞赛(英语专业本科专科)
大学生英语竞赛(NECCS)
相关试题推荐
HongKong:(89)Ofsymbolismtherewasplenty,butwhetherPrimeMinisterWenJiabao’slandmarkvisittoJapanwillactuallylead
What’sTania’sphonenumber?
Ihavehadjustaboutenoughofbeingtreatedlikeasecond-classcitizen,simplybecauseIhappenedtobethatputuponmember
HowdoestheBritishQueenfeelabouttheInternet?
Aresearchersaysleadintheenvironmentcouldbeamajorcauseofviolencebyyoungpeople.DoctorHerbertNeedlemanisa【21】_
ThisWednesday,GordonBrownwillreplaceTonyBlairasthenewheadofBritain’sLaborParty.Thislong-servingchancellorisa
WhichairlinewasJackycomplainingabout?
Realitytelevisionisagenreoftelevisionprogrammingwhich,itisclaimed,presentsunscripteddramaticorhumoroussituation
【B1】______Nochildimitateseveryactionhesees.Sometimes,theexampletheparentwantshimtofollowisignoredwhilehetake
UnusualincidentsarebeingreportedacrosstheArctic.Inuitfamiliesgoingoffonsnowmobilestopreparetheirsummerhuntingc
随机试题
用户进程在申请设备时,可以使用()
营养调查的目的是()。
由泽泻、木通、当归、黄芩、龙胆草、柴胡、生地黄、甘草、栀子组成的方剂是()
尿毒症患者高血压最主要的原因是
统计的认识过程是从定性认识到定量认识,再到定量认识与定性认识相结合。()
丙公司2017年12月31日的资产负债表显示:资产总额年初数和年末数分别为4800万元和5000万元,负债总额年初数和年末数分别为2400万元和2500万元,丙公司2017年度收入为7350万元,净利润为294万元。要求:根据前三小
对于跨行政区的旅游投诉,以下说法正确的是( )。
下列表述准确的是()。
被认为是真正意义上的安全产品一般其安全级别应达到______。
ToGetontheSamePageSamiAdwanistheverymodelofasoft-spokenprofessor.Hemeasureshiswords,andlistenscarefull
最新回复
(
0
)