Instead of blaming an airline accident on pilot error, : GMAT Critical Reasoning (CR)
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# Instead of blaming an airline accident on pilot error,

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07 Aug 2009, 11:13
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Instead of blaming an airline accident on pilot error, investigators should find out why the error was made by analyzing airplane design, airline management, and pilot-training programs. For only then can changes be made to ensure that the same type of error does not recur and cause another accident.

Which of the following is a presupposition of the argument above?
(A) Pilot error is not a contributing factor in most airline accidents.
(B) Airline companies themselves should be the agents who investigate airline accidents.
(C) Stricter government regulation of airline companies will make air travel significantly safer.
(D) Investigators of airline accidents should contribute to the prevention of future accidents.
(E) Most pilots who make errors in flying will repeat their errors unless they are retrained.
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07 Aug 2009, 11:34
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abhi758 wrote:
Instead of blaming an airline accident on pilot error, investigators should find out why the error was made by analyzing airplane design, airline management, and pilot-training programs. For only then can changes be made to ensure that the same type of error does not recur and cause another accident.

Which of the following is a presupposition of the argument above?
(A) Pilot error is not a contributing factor in most airline accidents.
(B) Airline companies themselves should be the agents who investigate airline accidents.
(C) Stricter government regulation of airline companies will make air travel significantly safer.
(D) Investigators of airline accidents should contribute to the prevention of future accidents.
(E) Most pilots who make errors in flying will repeat their errors unless they are retrained.

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07 Aug 2009, 11:37
Well thats what the OA is.. but can u pls explain the logic behind..
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07 Aug 2009, 11:44
D imo

it is mentioned in the passage investigators should find out blah blah blah, so it's clear that the author is assuming that investigators should play a big role in error prevention...
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07 Aug 2009, 19:01
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alwynjoseph wrote:
abhi758 wrote:
Instead of blaming an airline accident on pilot error, investigators should find out why the error was made by analyzing airplane design, airline management, and pilot-training programs. For only then can changes be made to ensure that the same type of error does not recur and cause another accident.

Which of the following is a presupposition of the argument above?
(A) Pilot error is not a contributing factor in most airline accidents.
(B) Airline companies themselves should be the agents who investigate airline accidents.
(C) Stricter government regulation of airline companies will make air travel significantly safer.
(D) Investigators of airline accidents should contribute to the prevention of future accidents.
(E) Most pilots who make errors in flying will repeat their errors unless they are retrained.

my thought is - the question asked is what is the author presupposition or implicit assumption - it is investigators are closing investigation blaming the pilots for air accidents rather looking into the root cause of why pilots are time and again repeating the error. The author expects them to probe into what cause the pilot to go erroneous rather blaming it all on the pilots

hope this helps
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07 Aug 2009, 19:32
As per the statement, necessary precautions are aken to prevent the accident. Statement D fits right for this assumption. So answer is D.
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07 Aug 2009, 20:08
Thanks Alwyn and others for the explanation for choosing option D.. The logic is clear now..
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09 Aug 2009, 03:48
D
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09 Aug 2009, 23:44
D it is.
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09 Jan 2011, 11:52
Was confused between (A) and (D). But (A) here does not contribute towards elimination of alternate path to the same end as the boundary word ‘most’ is used here

So the underlying assumption is (D).
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10 Jan 2011, 15:20
+1 D
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13 Dec 2011, 18:01
I was confused between A and D.....Thanks for the explanation guys.
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13 Dec 2011, 18:25
D it is. The logic gap that investigators will find out the cause of the error and make appropriate corrections, thus ensuring that such errors are not repeated, is filled up by this answer.
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13 Dec 2011, 20:18
D
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13 Dec 2011, 22:49
+1 D
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14 Dec 2011, 07:37
Why not A, I thought D is extreme. Can someone please clarify?
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14 Dec 2011, 10:08
anandikonda wrote:
Why not A, I thought D is extreme. Can someone please clarify?

A does not help us reach the conclusion that by analyzing the errors, the investigators can rectify those errors and thus avoid future problems. The argument needs to connect the logic gap between the premises - which state that analysis of error is important - and conclusion - which states that future errors will be avoided.

If the investigators aid the prevention of future accidents, as D says, then the logic gap is filled. Thus, the conclusion that future accidents will be avoided because of analysis is upheld.

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14 Dec 2011, 15:43
D it is
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26 Dec 2011, 11:08
D
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07 Aug 2013, 03:31
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for all those confused between A and D...,
lets apply the LEN Technique..., i,e Least Extreme Negation....

Conclusion : " changes be made to ensure that the same type of error does not recur and cause another accident,if investigators find out why the error was made"

A).,(A) Pilot error is not a contributing factor in most airline accidents

if A is Least Negated.., ie pilot error is a contributing factor in atleast some accidents...,
reasoning does not fall apart..,

D) (D) Investigators of airline accidents should contribute to the prevention of future accidents.

however if D is negated even slightest ..ie investigators fail to contribute to prevent future accidents, then conclusion can never be achieved..
thus D
Re: Instead of blaming an airline accident on pilot error,   [#permalink] 07 Aug 2013, 03:31

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