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# Meteorite explosions in the Earth s atmosphere as large as

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Meteorite explosions in the Earth s atmosphere as large as [#permalink]

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04 Apr 2007, 19:42
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Official Guide for GMAT Verbal Review, 2nd Edition

Practice Question
Question No.: 57
Page: 139
Difficulty:

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.
[Reveal] Spoiler: OA

Last edited by Narenn on 07 Oct 2013, 09:42, edited 1 time in total.
Necessary Corrections for Official Guide Verbal Review 2nd Edition Project

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04 Apr 2007, 20:41
Looking at the last sentence in the stem, I will choose E.

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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 Earthâ€™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 systemâ€™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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04 Apr 2007, 21:48
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E is the answer - because the response is unpredictable unless planned.

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Re: CR - Meteorite explosions [#permalink]

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04 Apr 2007, 21:51
pi10t wrote:
Meteorite explosions in the Earthâ€™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 Earthâ€™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 systemâ€™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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Meteorite explosions in the Earths atmosphere as large as [#permalink]

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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.

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Re: CR - Meteorite explosions [#permalink]

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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

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Re: CR - Meteorite explosions [#permalink]

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13 Jul 2008, 18:01
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.

Last edited by icandy on 13 Jul 2008, 18:31, edited 1 time in total.

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Re: CR - Meteorite explosions [#permalink]

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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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Re: CR - Meteorite explosions [#permalink]

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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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Re: CR - Meteorite explosions [#permalink]

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14 Jul 2008, 12:05
goalsnr wrote:
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

Yup...E is my pick as well....

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Meteorite explosions in the Earth s atmosphere as large as [#permalink]

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01 Oct 2009, 00:26
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.

[Reveal] Spoiler:
oa=e

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Re: CR - Meteorite explosions [#permalink]

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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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Re: CR - Meteorite explosions [#permalink]

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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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Re: CR - Meteorite explosions [#permalink]

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01 Oct 2009, 20:02
E

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Re: CR - Meteorite explosions [#permalink]

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03 Oct 2009, 01:17
crejoc wrote:
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

Same reasoning. E

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Meteorite explosions in the Earth s atmosphere as large as [#permalink]

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01 Dec 2009, 09:45
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.

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01 Dec 2009, 10:02
IMO E. All others seem either extreme or out of scope.. took me 2+ mins
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01 Dec 2009, 10:38

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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01 Dec 2009, 13:53
(E)
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Re: Meteorite explosions   [#permalink] 01 Dec 2009, 13:53

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