Critical Reasoning

Paint on a new airliner is usually applied in two stages : first, a coat 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 each layer of the new coating having the same thickness and weight as a trdational top coat. Using the new process instead of the old process increase the price of a new aircraft considerably.

Which of the following, if true, most strongly indicates that it is in an airline's long-term economic intrest to purchase new airliners painted using the 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 of having it painted using the new process instead.

B) A layer of primer on an airliner weighs more than a layer of the new coating would by an amount large enough to make a difference to that airliner's load-bearing capacity.

C) A single layer of new coating provides the aluminium skin of the airliner with less protection against corrosion than does a layer of primer of the usual thickness.

D) Unlike the old process, the new process was originally invented for use on spacecraft, which are subject to extremes of temperatire to which airliners are never exposed.

E) Because the new coating has a viscosity similar to that of a tradational top coat, aircraft manufaturers can apply it using the same equipment as is used for a tradational top coat.

I still can justify the answer B could someone help with their explantion...

glorydefined wrote:Paint on a new airliner is usually applied in two stages : first, a coat 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 each layer of the new coating having the same thickness and weight as a trdational top coat. Using the new process instead of the old process increase the price of a new aircraft considerably.

Which of the following, if true, most strongly indicates that it is in an airline's long-term economic intrest to purchase new airliners painted using the 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 of having it painted using the new process instead.

B) A layer of primer on an airliner weighs more than a layer of the new coating would by an amount large enough to make a difference to that airliner's load-bearing capacity.

C) A single layer of new coating provides the aluminium skin of the airliner with less protection against corrosion than does a layer of primer of the usual thickness.

D) Unlike the old process, the new process was originally invented for use on spacecraft, which are subject to extremes of temperatire to which airliners are never exposed.

E) Because the new coating has a viscosity similar to that of a tradational top coat, aircraft manufaturers can apply it using the same equipment as is used for a tradational top coat.

I still can justify the answer B could someone help with their explantion...

The key to understanding the OA is to put in plain english what " make a difference to that airliner's load-bearing capacity" mean. The information in the passages says the Airline under the old process is Heavier than that under the new process. . If each of the weights of the layers under the new process is 50lb then the Top coating under the old process is also 50lb. The total weight of the two layers of new process is 1001b. We are told the weight of the primer is greater than 50lb by a large amount. Make this weight 70LB. So weight under old process is 120lb verses 100lb on new process.
Thus the new process would be able to carry more luggage which can mean more revenue ,a possible measure of economic interest, from extra luggage. Suppuse the max weight on an airline is 2001b (plane weight + luggage + passeger). Clearly the New airline could make more money from the extra 20lb it is able to carry. th Hope this helps.

Hi dtweah,

But as per my understanding, isn't the question concerned about monetary factors of the airline "economic interest" ?? So I was actually looking for some cost factors related to airline which would answer the question....please let me know if I am missing something...

glorydefined wrote:Hi dtweah,

But as per my understanding, isn't the question concerned about monetary factors of the airline "economic interest" ?? So I was actually looking for some cost factors related to airline which would answer the question....please let me know if I am missing something...

But I did include monetary factor. The extra 201b can mean more money,. The economic interest must be related to the weight of the plane.