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
2018-01-26
18
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.
【D4】
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
collected
解析
转载请注明原文地址:https://kaotiyun.com/show/dz8K777K
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
Hereisariddle.Iamsuspendedintheair,Itouchnothing,andIamsurroundedbylights.NowIdressmyselfafresh,andnow
-Idon’tthinkIwillever,inmylife,winalotteryoffivemilliondollars.-Well,______.Anythingcanhappen.
Everyoneknewthat______theprojectwouldbecompletedandwe’dallhavetoreturntoourownseparatedepartments.
总之,他们就像一个机器人。压力大,时间少,功课多。(nothingbut)
Theauthor____realismandfantasyinherworksowellthattheaudienceisneversurewhetherthecharacters’experiencesare___
Nothingisdifficultintheworldifyouputyourheartintoit,______?
Whatcanbeinferredfromthenews?
Whatcanbeinferredfromthenews?
随机试题
A.内皮细胞B.单核细胞C.泡沫细胞D.平滑肌细胞动脉粥样硬化脂纹的主要细胞成分是
双臂下垂时通过肩胛下角与后正中线平行的垂直线为通过腋窝后皱襞沿后侧胸壁向下的垂直线为
某投资商欲进行写字楼置业投资,其目标收益率为12%,当前整个市场的平均收益率为15%,国家债券的收益率为3.5%。此时,该地区写字楼市场相对于整个投资市场的风险相关系数是()。
自我监督主要由排污单位及其主管部门承担,其基本出发点主要是()。
正常监理酬金中不属于直接成本的费用是( )。
在建设工程项目施工成本管理中,()是实现成本目标责任制的保证和实现决策目标的重要手段。
不是以生产预算为基础直接编制的预算是()。
第一个用实验的方法,准确测出大气压强数值的科学家是()。
近几十年肿瘤科学的研究取得了很大的进步:癌症已经成为一种可控制甚至可治愈的疾病,患者的生存率达到从未有过的高度。癌症治疗的靶向治疗,是指根据患者基因和对药物反应的不同,治疗药物在细胞分子水平上特异性选择结合点,干扰肿瘤细胞的生长,而不会波及周围的正常细胞。
在正的技术冲击中的价格错觉将会使得()。(2012年上海财经大学801经济学)
最新回复
(
0
)