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# Passengers must exit airplanes swiftly after accidents, since - weaken

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Math Expert
Joined: 02 Sep 2009
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Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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10 Jul 2014, 15:07
3
5
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Difficulty:

25% (medium)

Question Stats:

76% (01:11) correct 24% (01:15) wrong based on 182 sessions

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GMAT weekly questions

Passengers must exit airplanes swiftly after accidents, since gases released following accidents are toxic to humans and often explode soon after being released. In order to prevent passenger deaths from gas inhalation, safety officials recommend that passengers be provided with smoke hoods that prevent inhalation of the gases.

Which of the following, if true, constitutes the strongest reason NOT to require implementation of the safety officials' recommendation?

A. Test evacuations showed that putting on the smoke hoods added considerably to the overall time it took passengers to leave the cabin.
B. Some airlines are unwilling to buy the smoke hoods because they consider them to be prohibitively expensive.
C. Although the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting.
D. Some experienced flyers fail to pay attention to the safety instructions given on every commercial flight before takeoff.
E. In many airplane accidents, passengers who were able to reach emergency exits were overcome by toxic gases before they could exit the airplane.

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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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10 Jul 2014, 15:09
Bunuel wrote:

GMAT weekly questions

Passengers must exit airplanes swiftly after accidents, since gases released following accidents are toxic to humans and often explode soon after being released. In order to prevent passenger deaths from gas inhalation, safety officials recommend that passengers be provided with smoke hoods that prevent inhalation of the gases.

Which of the following, if true, constitutes the strongest reason not to require implementation of the safety officials' recommendation?

A. Test evacuations showed that putting on the smoke hoods added considerably to the overall time it took passengers to leave the cabin.
B. Some airlines are unwilling to buy the smoke hoods because they consider them to be prohibitively expensive.
C. Although the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting.
D. Some experienced flyers fail to pay attention to the safety instructions given on every commercial flight before takeoff.
E. In many airplane accidents, passengers who were able to reach emergency exits were overcome by toxic gases before they could exit the airplane.

A strong reason for rejecting the recommendation would be that the hoods endanger passengers. Passengers delayed in exiting the plane are more exposed to the risk of a gas explosion.

Choice A says that the hoods would delay passengers and is thus the best answer.

If some airlines are unwilling to buy the hoods, it might be necessary to require them to, so B is incorrect.

That the hoods protect from only one major risk is no reason in itself for rejection, so C is not correct.

That some passengers ignore safety instructions is also no reason for rejection, so D is incorrect.

Choice E is not a good answer; it supports the recommendation by indication that the hoods might enable more passengers to exit a plane.

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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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09 May 2016, 12:12
Bunuel wrote:
Passengers must exit airplanes swiftly after accidents, since gases released following accidents are toxic to humans and often explode soon after being released. In order to prevent passenger deaths from gas inhalation, safety officials recommend that passengers be provided with smoke hoods that prevent inhalation of the gases.

Harmful effects of Airplane accidents -

1. Release of toxic gases - passenger deaths from gas inhalation
2. Explosion of gases soon after being released

Recommendation - Passengers be provided with smoke hoods that prevent inhalation of the gases.

Addresses problem of deaths from toxic gas inhalation but the explosion of the gases can not be eliminated.

Which of the following, if true, constitutes the strongest reason not to require implementation of the safety officials' recommendation?

IMHO there are two possible close option.

Quote:
A. Test evacuations showed that putting on the smoke hoods added considerably to the overall time it took passengers to leave the cabin.
C. Although the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting.

A. Aids the process of ignition of gases - Magnifies / aids the process of explosion

C. Does nothing to magnify the effect of explosion.

Thus (A) weakens the argument more than (C) , hence correct answer will be (A)
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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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21 Dec 2017, 19:00
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Passengers must exit airplanes swiftly after accidents, since gases released following accidents are toxic to humans and often explode soon after being released. In order to prevent passenger deaths from gas inhalation, safety officials recommend that passengers be provided with smoke hoods that prevent inhalation of the gases.

Which of the following, if true, constitutes the strongest reason NOT to require implementation of the safety officials' recommendation?

(A) Test evacuations showed that putting on the smoke hoods added considerably to the overall time it passengers to leave the cabin.
(B) Some airlines are unwilling to buy the smoke hoods because they consider them to be prohibitively expensive.
(C) Although the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting.
(D) Some experienced flyers fail to pay attention to the safety instructions given on every commercial flight before takeoff.
(E) In many airplane accidents, passengers who were able to reach emergency exits were overcome by toxic gases before they could exit the airplane.

Source: GMAC Paper Test, Test Code #25, Section 6, question 9

Same passage with different stem question: LINK
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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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22 Dec 2017, 02:05
I choose A, not C. if C happen, it is still good to implement the hook.
but it A happen, it maybe is not good to implement installing the hook.
hard one
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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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22 Dec 2017, 03:20
I Choose A.
A) Lets Keep it. Although this doesn't seem the best.
B)Some airlines are unwilling to buy the smoke hoods because they consider them to be prohibitively expensive- Poor Argument. reject immediately.
C)Although the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting-The argument mentions smoke inhalation problem. This concerns with explosion. Reject
D)Some experienced flyers fail to pay attention to the safety instructions given on every commercial flight before takeoff.-Reject it. Doesn't concern us.
E)In many airplane accidents, passengers who were able to reach emergency exits were overcome by toxic gases before they could exit the airplane.-Supports the conclusion in the argument. Rejected.

Waiting for the OA
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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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22 Dec 2017, 04:52
I choose as A as the conclusion is passenger must exit swifly

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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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23 Dec 2017, 04:09
A.

passengers must exist plain as swiftly as possible.

If Hood adds considerable time and its better off the hood than with it.

I think its sub 600.
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Re: Passengers must exit airplanes swiftly after accidents, since - weaken  [#permalink]

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23 Dec 2017, 04:28
2
Passengers must exit airplanes swiftly after accidents, since gases released following accidents are toxic to humans and often explode soon after being released. In order to prevent passenger deaths from gas inhalation, safety officials recommend that passengers be provided with smoke hoods that prevent inhalation of the gases.

Which of the following, if true, constitutes the strongest reason NOT to require implementation of the safety officials' recommendation?

(A) Test evacuations showed that putting on the smoke hoods added considerably to the overall time it passengers to leave the cabin. -Correct. The argument is that the customers should evacuate as early as possible since there are chances of explosion.
(B) Some airlines are unwilling to buy the smoke hoods because they consider them to be prohibitively expensive. -expensive? wrong
(C) Although the smoke hoods protect passengers from the toxic gases, they can do nothing to prevent the gases from igniting. -If the passengers can get out of the plane fast enough before the explosion, the hood would have done its job.
(D) Some experienced flyers fail to pay attention to the safety instructions given on every commercial flight before takeoff. -Before flight took off? wrong
(E) In many airplane accidents, passengers who were able to reach emergency exits were overcome by toxic gases before they could exit the airplane. -This strengthens the argument
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Re: Passengers must exit airplanes swiftly after accidents, since - weaken &nbs [#permalink] 23 Dec 2017, 04:28
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