47. [航空安全]
某航空公司说自己mostsafety 的原因是它把12%钱花在维修、维护上，while其他公司7%。（数字不对，但大小关系对）
考古题如下
44.飞机维护成本
V1遇到了至少3个以上跟航空公司有关的题目，我真是纳了闷，竟然可以有这么多。有一道是说维护成本最高的，问削弱，我选旧飞机需要更多的成本——byestellesha（V33）
V2还有一道也是航空公司的。某公司觉得自己的航线最安全，因为它花了7.2%的钱在维护飞机上，是所有航空公司中花费最多的，第二名只花了6%。问削弱。答案很确定，是因为这个公司用的飞机很老式，其他公司用的新式的飞机，老式飞机需要花更多的钱维护。——by koncat（700,V36）
V3说大家都应该信赖T航空公司的安全，因为T航空公司的飞机maintaince cost是最高的且高达7.8%，而仅次于T的第二高的航空公司cost是6.2%，问削弱。
答案：我选的是T航空公司的飞机average age longer than other companies, 而new plane 不需要频繁maintain。——by 粉红一台灯
【考古】——感谢nowwsy 待确认~~~
飞机喷漆，老技术是一层底漆加一层面漆。新技术是两层面漆。卖飞机的认为新技术在long term下可以提供更好的economic sense。问以下哪个assumption if true，能够beststrength这个claim。选的是一层面漆相比一层底漆的weight difference，足以影响飞机的货物载重。现在想象，说的是difference，也可能是面漆比底漆重，这样就weaken了>_<但是其他选项怎么看都不像，没印象了，残念。
（from EYMA 750）
【再考古】 ——感谢nowwsy
V1
一道是某航空公司宣称他们的航班是最安全的,理由是他们每年花在维修飞机上的钱占总开支的7.5%, 而其他航空公司最高只有6%,问削弱.
我选其他航空公司购入飞机比他新,新飞机的维修费要远少于旧飞机.
V2
某航空公司说他们的安全系数很高，维护费用远远高于其他航空公司，还给了数据，这个数据高于其他航空公司的平均值。问下面哪个削弱了这个航空公司的论断。我选的是因为其他航空公司的设备很新，维护费用很低。还有选项说 民航总局的东东说这个航空公司的设备什么的比其他的差些。
比较像的两篇，供大家参考：
V1 When an airplane is taken out of service for maintenance, it is oftenrepainted as well, and during the repainting no other maintenance work can bedone on the plane.In order to reduce maintenance time, airline officials areconsidering using a new nontoxic plastic film instead of paint.The film takes justas long to apply as paint does, but many other maintenance tasks can be carriedout at the same time.
Which of the following, if true, is further evidence that using the filmwill help the airline officials achieve their goal?
(A) Unlike paint, the film gives a milky tone to certain colors.
(B) At the end of its useful life, the film can be removed much morequickly than paint can.
(C) The film can be applied only by technicians who have received specialtraining.
(D) The metal exteriors of airplanes have to be protected from hightemperatures and caustic chemicals such as exhaust gases.
(E) Even at speeds considerably higher than the normal speed of apassenger jet, the film remains securely attached.
答案：B
V2 Paint on a new airliner is usually applied in two stages: first, acoat of primer, and then a top coat. A new process requires no primer,but instead uses two layers of the same newly developed coating, with eachlayer of the new coating having the same thickness and weight as a traditionaltop coat. Using the new process instead of the old process increases theprice of a new aircraft considerably.
Which of the following, if true, most strongly indicates that it is in anairline's long-term economic interest to purchase new airliners painted usingthe new process rather than the old process?
(A) Although most new airliners are still painted using the old process,aircraft manufacturers now offer a purchaser of any new airliner the option ofhaving it painted using the new process instead.
(B) A layer of primer on an airliner weighs more than a layer of the newcoating would by an amount large enough to make a difference to that airliner'sload-bearing capacity.
(C) A single layer of the new coating provides the aluminum skin of theairliner with less protection against corrosion than does a layer of primer ofthe usual thickness.
(D) Unlike the old process, the new process was originally invented for use onspacecraft, which are subject to extremes of temperature to which airliners arenever exposed.
(E) Because the new coating has a viscosity similar to that of a traditionaltop coat, aircraft manufacturers can apply it using the same equipment as isused for a traditional top coat.
答案是B
（from angusco 蚊子漫步） | 
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发表于 2011-8-12 15:42:40
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