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# Modern navigation systems, which are found in most of

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Director
Joined: 12 Oct 2008
Posts: 539

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22 Feb 2009, 14:58
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Question Stats:

100% (00:44) correct 0% (00:00) wrong based on 71 sessions

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Modern navigation systems, which are found in most of today's commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.

The two portions in boldface play which of the following roles?

(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.

(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.

(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.

(D) The first is an evidence that supports the conclusion, the second is that conclusion.

(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument.

Kudos [?]: 592 [0], given: 2

VP
Joined: 05 Jul 2008
Posts: 1402

Kudos [?]: 437 [0], given: 1

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22 Feb 2009, 15:14
Modern navigation systems, which are found in most of today's commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.

The two portions in boldface play which of the following roles?

(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first. drawn from Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer.

(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.

(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.

(D) The first is an evidence that supports the conclusion, the second is that conclusion.

(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument.

At this point I am down to my as usual quandary of which one is better over the other and breaking this tie has been very consuming.

I find the second part of E very weird. the second is a conclusion that could be drawn from this argument

the argument is that electronics used by humans cause risk. Isn't it the same as the conclusion?

I believe it is C for this reason.

On a side note, How does one figure out what is a principle/policy/strategy/evidence/fact/consideration that seem to be the norm of the Boldface Questions? Does any one have a strategy ? This could help break the tie and save time

Kudos [?]: 437 [0], given: 1

VP
Joined: 05 Jul 2008
Posts: 1402

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23 Feb 2009, 07:23
On a side note, How does one figure out what is a principle/policy/strategy/evidence/fact/consideration that seem to be the norm of the Boldface Questions? Does any one have a strategy ? This could help break the tie and save time

Kudos [?]: 437 [0], given: 1

Manager
Joined: 17 Dec 2008
Posts: 171

Kudos [?]: 168 [0], given: 0

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23 Feb 2009, 08:17
Modern navigation systems, which are found in most of today's commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.

The two portions in boldface play which of the following roles?

(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.

(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.
(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.

(D) The first is an evidence that supports the conclusion, the second is that conclusion.
(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument.

A/E out Certainly not a Principle(principle is much stronger such as Buoyancy/Gravity etc can be applied widely).
D out (Not Evidence - evidence has to support the conclusion directly).

Between B and C. Very close. I am not sure we will see something like this in the real GMAT. Is this a valid GMAT qn?

Kudos [?]: 168 [0], given: 0

VP
Joined: 18 May 2008
Posts: 1258

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23 Feb 2009, 10:32
I narrowed down the choices to B and C. Though I feel that the usage of "must be drawn" in B somehow weakens it. Hence my choice is C.
@icandy, E is wrong bcos first statement is not a principle. bcos a principle is an established fact.For example, earth is round. this is an established fact and hence it is a principle.
Modern navigation systems, which are found in most of today's commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.

The two portions in boldface play which of the following roles?

(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.

(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.

(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.

(D) The first is an evidence that supports the conclusion, the second is that conclusion.

(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument.

Kudos [?]: 527 [0], given: 0

Director
Joined: 01 Aug 2008
Posts: 728

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23 Feb 2009, 12:43
B/C ... I pick B for these reasons...

the first is a fact than a aknowledgement ot/of a consideration. I know 'must be drawn' is little stronger but it looks better than C..

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SVP
Joined: 17 Jun 2008
Posts: 1534

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25 Feb 2009, 10:32
I will go with B.
A and E are out as the first is not a priciple.
C is out as the first is not acknowledgement of a consideration. Rather, it is a fact.
D is out as the first is not an evidence.

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Retired Moderator
Joined: 18 Jul 2008
Posts: 960

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25 Feb 2009, 11:38
This is a good question. I hope someone has an answer for this.

I went for C after POE.

icandy wrote:
On a side note, How does one figure out what is a principle/policy/strategy/evidence/fact/consideration that seem to be the norm of the Boldface Questions? Does any one have a strategy ? This could help break the tie and save time

Kudos [?]: 294 [0], given: 5

Director
Joined: 04 Jan 2008
Posts: 893

Kudos [?]: 747 [0], given: 17

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26 Feb 2009, 01:01
googled and got OA-C(Original poster must confirm this)
Initially i tht its B
_________________

http://gmatclub.com/forum/math-polygons-87336.html
http://gmatclub.com/forum/competition-for-the-best-gmat-error-log-template-86232.html

Kudos [?]: 747 [0], given: 17

Retired Moderator
Joined: 18 Jul 2008
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27 Feb 2009, 07:05

Kudos [?]: 294 [0], given: 5

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