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# Several Pentagon contractor firms are working on a new class

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Several Pentagon contractor firms are working on a new class  [#permalink]

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14 Oct 2013, 22:34
5
37
00:00

Difficulty:

95% (hard)

Question Stats:

49% (01:39) correct 51% (04:02) wrong based on 1292 sessions

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Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

(A) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers
(B) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles and the infinitesimal, engineered fibers
(C) outbreaks of dangerous viruses and still another growing threat of the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(D) outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(E) outbreaks of dangerous viruses and to protect against still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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03 Nov 2013, 10:35
7
3
Official Explanation

- In this difficult question, you must notice one very important but easy to overlook decision point: in (A), (B), and (C) you do not have the “for” before the word “still” and you must have it. In (D) you have the necessary “for” and in (E) you have “to protect”. The reason that you need the “for” in (A), (B), and (C) is that without it the sentence reads: “outbreaks of diseases and still another threat.” That means there are “outbreaks of still another threat,” which is illogical.

The sentence needs to say that you are preparing for two things: “for outbreaks of diseases and for still another growing threat:” (E) is wrong because while “to prepare” and “ to protect” are parallel, the end of the sentence is clearly wrong: “still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers.”

Separating “the infinitesimal and engineered fibers” from nanoparticles with the word “and” is wrong as they are not separate things and this structure makes it seem that “the infinitesimal” is an entity on its own. It should be used as the appositive modifier showing that the nanoparticles are “infinitesimal and engineered fibers” as you see in several of the choices. Correct answer is (D).
##### General Discussion
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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14 Oct 2013, 23:39
1
tk1tez7777 wrote:
Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers
outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles and the infinitesimal, engineered fibers
outbreaks of dangerous viruses and still another growing threat of the accidental releases of nanoparticles, the infinitesimal and engineered fibers
outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers
outbreaks of dangerous viruses and to protect against still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

Option D

Correct parallelism is seen.

"for outbreaks.. " should be follwed with "for still another growing threat", "the accidental releases of nanoparticles, the infinitesimal and engineered fibrers" are all found parallel.

Hope it is clear

Cheers
Qoofi
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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30 Oct 2013, 08:17
1
Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

A. outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers

B. outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles and the infinitesimal, engineered fibers

C. outbreaks of dangerous viruses and still another growing threat of the accidental releases of nanoparticles, the infinitesimal and engineered fibers

D. outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers

E. outbreaks of dangerous viruses and to protect against still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

OE to follow.
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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30 Oct 2013, 08:55
1
1
avohden wrote:
Several Pentagon contractor firms are working on a new class of ventilator masks,
not just for emergency and cleanup workers but to prepare for outbreaks of
dangerous viruses and still another growing threat: the accidental releases of
nanoparticles, which are the infinitesimal, engineered fibers
that are starting to
be used in electronics, food, medicine, and more.

A. outbreaks of dangerous viruses and still another growing threat: the accidental
releases of nanoparticles, which are the infinitesimal, engineered fibers

B. outbreaks of dangerous viruses and still another growing threat: the accidental
releases of nanoparticles and the infinitesimal, engineered fibers

C. outbreaks of dangerous viruses and still another growing threat of the accidental
releases of nanoparticles, the infinitesimal and engineered fibers

D. outbreaks of dangerous viruses and for still another growing threat: the accidental
releases of nanoparticles, the infinitesimal and engineered fibers

E. outbreaks of dangerous viruses and to protect against still another growing threat
of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

The answer if D because of parallelism:

==> not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and for still another growing threat

Need FOR here to make it //

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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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17 Jun 2017, 17:01
prepare
outbreaks of dangerous viruses
still another growing threat
the accidental releases of nanoparticles,
are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

Categorize them into different tiers

Prepare : outbreak
Threat
________ =accidental release of nanoparticles

__________= fibers
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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18 Jun 2017, 09:56
Error 1:
If for is not used before "still another growing threat", the sentence is read as below
For outbreaks of ( dangerous viruses and still another growing threat ) : the accidental releases of nanoparticles, which are the infinitesimal, engineered fibres.
Error 2:
Relative pronoun (Which) as well as noun + noun modifier is used.
Rather Noun + Noun modifier can be used. "the infinitesimal, engineered fibres".
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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24 Oct 2017, 06:02
Isn't 'for' after and in D unncecessary? Woudn't the meaning be clear even without 'for'?

....... to prepare for

1. outbreaks of dangerous viruses
and
2. still another growing threat: the accidental.....
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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24 Oct 2017, 10:07
mikemcgarry GMATNinja GMATNinjaTwo in

option D ((( outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers))) to be correct this part ((
the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.))
must act as an ABSOLUTE PHRASE , which is noun and noun modifiers
Isn't the presence of ""are "" makes this a clause and a run on sentence
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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24 Oct 2017, 23:11
Mahmud6 wrote:
Isn't 'for' after and in D unncecessary? Woudn't the meaning be clear even without 'for'?

....... to prepare for

1. outbreaks of dangerous viruses
and
2. still another growing threat: the accidental.....

I have the Same question. The meaning should be still clear to prepare for two things - outbreaks and still another threat.
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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13 Mar 2018, 12:32
First, I don't think it is very GMAT like to underline words which are same across all five choices. The first five words should not be underlined.

The correct construction is not just for A, but to prepare for X and for Y. This construction is only seen in option D, which is the correct answer.
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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13 Mar 2018, 12:39
sandysilva wrote:
Mahmud6 wrote:
Isn't 'for' after and in D unncecessary? Woudn't the meaning be clear even without 'for'?

....... to prepare for

1. outbreaks of dangerous viruses
and
2. still another growing threat: the accidental.....

I have the Same question. The meaning should be still clear to prepare for two things - outbreaks and still another threat.

I think it is necessary. Similar to both for X and for Y construction. You can't ignore the preposition in the second phrase. Especially in our case, to convey the intended meaning 'for' is necessary. Otherwise, one could read - 'outbreaks of still another threat' - which is illogical.
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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19 Mar 2018, 00:14
tk1tez7777 wrote:
Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

(A) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers
(B) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles and the infinitesimal, engineered fibers
(C) outbreaks of dangerous viruses and still another growing threat of the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(D) outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(E) outbreaks of dangerous viruses and to protect against still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

Hi VeritasPrepKarishma

I was able to eliminate B , C.
I am not so sure about A , D and E .
Although i do remember a rule regarding use of " and " where we have to keep keep same words before parallel entity .Here for is used correctly before two parallel entities .
E changes the sentence structure and the list is not proper in E
Please explain A and D and how to eliminate A on meaning ?

Thanks ,
Arvind
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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19 Mar 2018, 06:34
arvind910619 wrote:
tk1tez7777 wrote:
Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

(A) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers
(B) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles and the infinitesimal, engineered fibers
(C) outbreaks of dangerous viruses and still another growing threat of the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(D) outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(E) outbreaks of dangerous viruses and to protect against still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

Hi VeritasPrepKarishma

I was able to eliminate B , C.
I am not so sure about A , D and E .
Although i do remember a rule regarding use of " and " where we have to keep keep same words before parallel entity .Here for is used correctly before two parallel entities .
E changes the sentence structure and the list is not proper in E
Please explain A and D and how to eliminate A on meaning ?

Thanks ,
Arvind

Hi arvind910619,

We use parallelism to bring clarity, better readability and brevity. But while doing so, MEANING must be retained. So you are right that A is incorrect because of meaning. Consider the following two structures of A vs D:

to prepare for outbreaks of dangerous viruses and threats. here threats is parallel to viruses but viruses can outbreak not the threats. This is the wrong meaning here because of wrong elements have been put to parallel.

to prepare for outbreaks of dangerous viruses and for threats
here threats is an entity in itself.
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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12 Jun 2018, 07:45
Qoofi wrote:
tk1tez7777 wrote:
Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers
outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles and the infinitesimal, engineered fibers
outbreaks of dangerous viruses and still another growing threat of the accidental releases of nanoparticles, the infinitesimal and engineered fibers
outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers
outbreaks of dangerous viruses and to protect against still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

Option D

Correct parallelism is seen.

"for outbreaks.. " should be follwed with "for still another growing threat", "the accidental releases of nanoparticles, the infinitesimal and engineered fibrers" are all found parallel.

Hope it is clear

Cheers
Qoofi

Hi,

In choice D, whats the last modifier modifying?
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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13 Jun 2018, 11:35
avijit02 wrote:

Hi,

In choice D, whats the last modifier modifying?

the accidental release of NANOPARTICLES.

what are these nanoparticles? they are infinitesimal and engineered FIBRES. these fibres are now started to be used in various things.
so last modifier modifies nanoparticles.
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Re: Several Pentagon contractor firms are working on a new class  [#permalink]

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18 Jun 2018, 23:53
tk1tez7777 wrote:
Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.

(A) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers
(B) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles and the infinitesimal, engineered fibers
(C) outbreaks of dangerous viruses and still another growing threat of the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(D) outbreaks of dangerous viruses and for still another growing threat: the accidental releases of nanoparticles, the infinitesimal and engineered fibers
(E) outbreaks of dangerous viruses and to protect against still another growing threat of the accidental releases of nanoparticles and the infinitesimal and engineered fibers

Finally got.

Between C & D,

C could be interpreted in two ways:

1.
For outbreaks of dangerous viruses
For still another growing threat

2.
For outbreaks of dangerous viruses
For outbreaks of still another growing threat

To resolve the above confusion we need preposition before still another growing threat

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Several Pentagon contractor firms are working on a new class  [#permalink]

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13 Jul 2018, 14:25
What is going on here with parallel construction Veritas?

not just for emergency and cleanup workers but to prepare for outbreaks of dangerous viruses and still another growing threat
Several Pentagon contractor firms are working on a new class &nbs [#permalink] 13 Jul 2018, 14:25
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