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
A design for a remotely-controlled fire engine could make long road or rail tunnels safer. It is the brainchild of an Italian fi
A design for a remotely-controlled fire engine could make long road or rail tunnels safer. It is the brainchild of an Italian fi
admin
2013-01-15
18
问题
A design for a remotely-controlled fire engine could make long road or rail tunnels safer. It is the brainchild of an Italian fire safety engineer, who claims that his invention--dubbed Robogat -- could have cut the death toll in the disastrous Mont Blanc tunnel fire in March 1999 which killed 41 people. Most of the people who perished dies within 15 minutes of smoke first being detected. Quick action is needed when fire breaks out in a tunnel. Robogat can travel at about 50 kilometers per hour. The Mont Blanc fire was 5 kilometers from the French end of the tunnel, so a machine could have got there in about six minutes.
The Robogat has been designed and patented by Domenico Piatti of the Naples fire department; it runs on a monorail suspended from the roof of the tunnel, when the Robogat reaches a fire, it plugs into a modified water main running along the tunnel and directs its hoses at the base of the fire. It is capable of pumping 3,000 liters of high-pressure water per minute--about the same rate as that from an airport fire tender. Normal fire engines deliver 500 liters per minute The machine’ s heat-resistant skin is designed to withstand temperatures of up to 1,000~C. Designed to fight fires in tunnels up to 12 kilometers long, the Robogat will be operated from a control centre outside the tunnel. Ideally, tunnels should have a Robogat stationed at each end, allowing fires to be tackled from both sides.
Piatti says that it would be relatively cheap to install the Robogat in new tunnels. With each machine costing around $ 250,000. "That’s not expensive." says Stuart. Jagger, a British fire fighting specialist, who adds, "Fire-fighters normally have to approach the blaze from upwind. People have dies if the ventilation is overwhelmed or someone changes the ventilation. If the robot worked remotely it would be all advantage. But this introduces extra problems: the Robogat would have to feed information about the state of the fire back to its controller, and the sensors, like the rest of the machine, would have to be fire-resistant. Piatti is now looking for financial backing to build a prototype."
According to the passage, because temperatures in a tunnel can be very high, ______.
选项
A、the Robogat has to have a heat-resistant skin
B、the Robogat is operated in a control centre outside the tunnel
C、the Robogat can only work at the scene of a fire for a limited period
D、a Robogat is stationed at each end
答案
A
解析
从第二段The machine’s hear--resistant skin is designed to withstand temperatures of up to 1,000°C可以判断由于温度很高,它需要有heat-resistant skin。
转载请注明原文地址:https://jikaoti.com/ti/cb8YFFFM
0
考博英语
相关试题推荐
Officerevolution(notonly)haschanged(how)workisdonebut(redefined)thefunctionofeveryonewho(works)inanoffice.
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
【66】Astateuniversitypresidentwasarrestedtodayandchargedwithimpersonateapoliceofficerbecame,theauthoritiessay,h
Engineeringstudentsaresupposedtobeexamplesofpracticalityandrationality,butwhenitcomestomycollegeeducationIam
Thebusinessofadvertisingistoinventmethodsofaddressingmassiveaudiencesinalanguagedesignedtobeeasilyaccessible
随机试题
人力资源战略是企业战略体系中处于关键地位的职能战略,是企业总体战略的重点之一。()
在颈部淋巴结7个分区法中,下列淋巴结中不包括在7个分区内的是
A.多尿B.尿频C.尿失禁D.尿淋漓E.尿闭发热性疾病的退热期
男性,16岁。右下后牙咬硬物时略感不适1年余。口腔检查:牙列整齐,牙周检查(一),叩诊(+),颊侧牙龈有窦道,松动Ⅰ°,牙体未见明显龋坏,牙合面可见圆形黑环。最可能的诊断是()
A.茯苓枳壳B.枳实茯神C.茯苓茯神D.天麻橘红E.贝母黄芩
风向玫瑰图应同时附当地气象台站()以上气候统计资料的统计结果。
人类的大脑细胞具有______的抵抗癌症的能力,不但可以调节人体免疫系统能力。还能______肿瘤细胞的生长。人类实现自主抗癌不再是幻想。填入划横线部分最恰当的一项是()。
医务社会工作的功能包括哪些?()
“体者,载知识之车寓道德之舍也”说明体育在人的全面发展教育中起导向和动力作用。
在Windows系统中,默认权限最低的用户组是__________。(2012年上半年试题)
最新回复
(
0
)