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Meteorite explosions in the Earth s atmosphere as large as

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New post Updated on: 08 May 2018, 06:18
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Official Guide for GMAT Verbal Review, 2nd Edition

Practice Question
Question No.: 57
Page: 139

Meteorite explosions in the Earth's atmosphere as large as the one that destroyed forests in Siberia, with approximately the force of a twelve-megaton nuclear blast, occur about once a century.

The response of highly automated systems controlled by complex computer programs to unexpected circumstances is unpredictable.

Which of the following conclusions can most properly be drawn, if the statements above are true, about a highly automated nuclear-missile defense system controlled by a complex computer program?

(A) Within a century after its construction, the system would react inappropriately and might accidentally start a nuclear war.

(B) The system would be destroyed if an explosion of a large meteorite occurred in the Earth's atmosphere.

(C) It would be impossible for the system to distinguish the explosion of a large meteorite from the explosion of a nuclear weapon.

(D) Whether the system would respond inappropriately to the explosion of a large meteorite would depend on the location of the blast.

(E) It is not certain what the system's response to the explosion of a large meteorite would be, if its designers did not plan for such a contingency.

Originally posted by pi10t on 04 Apr 2007, 19:42.
Last edited by hazelnut on 08 May 2018, 06:18, edited 4 times in total.
Necessary Corrections for Official Guide Verbal Review 2nd Edition Project
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New post 04 Apr 2007, 20:51
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D and E come close.
Picking E.

A. Within a century after its construction, the system would react inappropriately and might accidentally start a
nuclear war. Plain rubbish, no reference to a nuclear war
B. The system would be destroyed if an explosion of a large meteorite occurred in the Earth’s atmosphere. Again we cannot be sure that the system would necessarily be destroyed
C. It would be impossible for the system to distinguish the explosion of a large meteorite from the explosion of a nuclear weapon. the response is not impossible but unpredictable
D. Whether the system would respond inappropriately to the explosion of a large meteorite would depend on
the location of the blast. Might be true but can't be said with surity
E. It is not certain what the system’s response to the explosion of a large meteorite would be, if its designers did not plan for such a contingency. . This seems the most relevant as it talks about the response being unpredictable if not planned in advance.
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New post 04 Apr 2007, 20:41
Looking at the last sentence in the stem, I will choose E.
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New post 04 Apr 2007, 21:48
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E is the answer - because the response is unpredictable unless planned.
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New post 04 Apr 2007, 21:51
pi10t wrote:
Meteorite explosions in the Earth’s atmosphere as large as the one that destroyed forests in Siberia, with approximately the force of a twelve-megaton nuclear blast, occur about once a century. The response of highly automated systems controlled by complex computer programs to unexpected circumstances is unpredictable.

Which of the following conclusions can most properly be drawn, if the statements above are true, about a highly automated nuclear-missile defense system controlled by a complex computer program?

A. Within a century after its construction, the system would react inappropriately and might accidentally start a
nuclear war.
B. The system would be destroyed if an explosion of a large meteorite occurred in the Earth’s atmosphere.
C. It would be impossible for the system to distinguish the explosion of a large meteorite from the explosion of a
nuclear weapon.
D. Whether the system would respond inappropriately to the explosion of a large meteorite would depend on
the location of the blast.
E. It is not certain what the system’s response to the explosion of a large meteorite would be, if its designers
did not plan for such a contingency.


E. If it is not planned then it is unexpected
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New post 13 Jul 2008, 17:03
Meteorite explosions in the Earths atmosphere as large as the one that destroyed forests
in Siberia, with approximately the force of a twelve-megaton nuclear blast, occur about once a
century. The response of highly automated systems controlled by complex computer programs to
unexpected circumstances is unpredictable.
Which of the following conclusions can most properly be drawn, if the statements above are
true, about a highly automated nuclear-missile defense system controlled by a complex
computer program?

A. Within a century after its construction, the system would react inappropriately and mightaccidentally start a nuclear war.

B. The system would be destroyed if an explosion of a large meteorite occurred in the Earthsatmosphere.

C. It would be impossible for the system to distinguish the explosion of a large meteorite fromthe explosion of a nuclear weapon.

D. Whether the system would respond inappropriately to the explosion of a large meteoritewould depend on the location of the blast.

E. It is not certain what the systems response to the explosion of a large meteorite would be,if its designers did not plan for such a contingency.

Please explain your answers
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New post 13 Jul 2008, 17:11
A goes too far.
B we cannot conclude this from the para.
C -- Tempting but sounds too strong with word impossible
D from the given facts we cannot say if it is location dependent or not.
E -- IMO

OA Please
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New post Updated on: 13 Jul 2008, 18:31
My pick is C

Meteorite explosions have a force of a twelve-megaton nuclear blast.

Response of highly automated systems controlled by complex computer programs to
unexpected circumstances is unpredictable.

What will a computer do if a twelve-megaton nuclear blast occurs with out a M explosion? It probably would exactly behave as if a M explosion has happened. In essence it won't differentiate between M explosion and Nuclear blast

What is the OA?

Edit: E appears to be a better choice. I should have read it better.

Originally posted by icandy on 13 Jul 2008, 18:01.
Last edited by icandy on 13 Jul 2008, 18:31, edited 1 time in total.
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New post 13 Jul 2008, 18:18
icandy wrote:
My pick is C

Meteorite explosions have a force of a twelve-megaton nuclear blast.

Response of highly automated systems controlled by complex computer programs to
unexpected circumstances is unpredictable.

What will a computer do if a twelve-megaton nuclear blast occurs with out a M explosion? It probably would exactly behave as if a M explosion has happened. In essence it won't differentiate between M explosion and Nuclear blast

What is the OA?


C and E are close. I will go with E. Since C is using this strong word "impossible".
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New post 14 Jul 2008, 12:01
OA is E

My explanation:
-Meteorite explosions with approximately the force of a twelve-megaton nuclear blast, occur about once a century.

-The response of highly automated systems controlled by complex computer programs to unexpected circumstances is unpredictable.

Which of the following conclusions can most properly be drawn, if the statements above are
true, about a highly automated nuclear-missile defense system controlled by a complex
computer program?

A. Within a century after its construction, the system would react inappropriately and mightaccidentally start a nuclear war.
>>We know teh system's reaction is unpredicatable. With the given info we cannot conclude teh system will start a nuclear war. May be it will just beep or give out an alarm. Basically what Iam trying to say is the we cannot predict the action of the system .
->OUT

B. The system would be destroyed if an explosion of a large meteorite occurred in the Earthsatmosphere.
->OUT of scope

C. It would be impossible for the system to distinguish the explosion of a large meteorite fromthe explosion of a nuclear weapon.
->The stimulus says the response to an explosion is unpredicatable.Nothing is said about the capability of the system. You never know the system may be designed to distinguish different kinds of explosion but not react.

D. Whether the system would respond inappropriately to the explosion of a large meteoritewould depend on the location of the blast.
->OUT of scope. Nothing is talked about location

E. It is not certain what the systems response to the explosion of a large meteorite would be,if its designers did not plan for such a contingency.
->WINS
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New post 01 Oct 2009, 16:40
IMO E.
It is a Mainpoint question , identify each premises and what conclusion follows it.
A. the system may react in anyway, there is no gurantee that within a centuy it would start a nuclear war.

B. Completely out of scope of the stimulus

C. We never know how the system responds, so we cannot decided it is impossible for the system to distinguish.This conclusion is so specific. moreover note the use of strong word "impossible", in most cases answer choices containing, strong extreme words are not preferred.

D. Out of scope

E. Correct , clearly restates the conclusion in the stimulus. The response of highly automated systems controlled by complex computer programs to unexpected
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New post 01 Oct 2009, 19:58
Clear E

Ok, here is the logic
System behaves unpredictable , that does not mean that system will start a nuclear war or will get destroyed
only option that makes sense is E
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New post 01 Dec 2009, 10:02
IMO E. All others seem either extreme or out of scope.. took me 2+ mins
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New post 01 Dec 2009, 10:38
IMO, Answer is E.

I think the key words in the stimulus are " unexpected circumstances", and that is clearly stated in E " if its designers did not plan for such a contingency "
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New post 01 Dec 2009, 21:59
(A)Incorrect:Out of scope
(B)Incorrect:It is clearly mentioned that the response is unpredictable.
(C)Incorrect:Use of extreme words
(D)Incorrect: Nothing is mentioned about the location of blast
(E)Correct:Conclusion is made keeping in mind the information provided in the passage.
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New post 26 Oct 2011, 12:46
I picked E...It restates the conclusion
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New post Updated on: 07 Oct 2013, 09:38
I have picked E for this question:

This is a Must Be True question and it is asking you to make a conclusion about the automated system based on the passage.

A. This statement may or may not be true. There is nothing within the passage that leads us to believe that "...the system would react inappropriately..." Therefore, this statement is incorrect.

B. How can we know for sure that an explosion of a large meteorite would destroy the system? It may or may not be destroyed - there is nothing in the passage to back up this statement.

C. Nowhere in the passage does it describe the automated system's ability to distinguish between an explosion from a meteorite and an explosion from a nuclear weapon.

D. How do we know that anything depends on the location of the blast? Again, there is nothing to prove this statement.

E. This is the only reasonable answer choice. This statement is very similar the 2nd paragraph in the passage, so it passes the fact test.

Originally posted by whamberto on 24 Mar 2012, 14:10.
Last edited by Narenn on 07 Oct 2013, 09:38, edited 1 time in total.
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New post 11 Feb 2016, 02:09
whamberto wrote:
I have picked E for this question:

This is a Must Be True question and it is asking you to make a conclusion about the automated system based on the passage.

A. This statement may or may not be true. There is nothing within the passage that leads us to believe that "...the system would react inappropriately..." Therefore, this statement is incorrect.

B. How can we know for sure that an explosion of a large meteorite would destroy the system? It may or may not be destroyed - there is nothing in the passage to back up this statement.

C. Nowhere in the passage does it describe the automated system's ability to distinguish between an explosion from a meteorite and an explosion from a nuclear weapon.

D. How do we know that anything depends on the location of the blast? Again, there is nothing to prove this statement.

E. This is the only reasonable answer choice. This statement is very similar the 2nd paragraph in the passage, so it passes the fact test.



Hi everyone,

I've a doubt in option E.

E. It is not certain what the system's response to the explosion of a large meteorite would be, if its designers did not plan for such a contingency.

though I agree the first part can be deduced from the argument, I'm not satisfied with the 2nd part (in red)

There is no mention of contingency plan in the argument (or any conditional if statement).

IMO - 2nd part doesn't pass the fact test.(must be true answer choices must always pass the fact test).


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New post 17 Oct 2016, 14:17
I would reject C only on the basis of the work "impossible"
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Re: Meteorite explosions in the Earth s atmosphere as large as  [#permalink]

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New post 09 Apr 2017, 20:45
E- IMO
(1 min 47 sec)
hi,
Am taking around 2 min for this type of questions is there any other way to solve these questions more quickly than it does now. I see people claiming that they could do such problems within 1 min 30 sec or around 1 min.

help appreciated.
Re: Meteorite explosions in the Earth s atmosphere as large as &nbs [#permalink] 09 Apr 2017, 20:45

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