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# The demand for airplane mechanics is expected to grow about

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Senior Manager
Joined: 28 Aug 2010
Posts: 261

Kudos [?]: 777 [1], given: 11

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05 Dec 2010, 09:44
1
KUDOS
00:00

Difficulty:

15% (low)

Question Stats:

70% (00:51) correct 30% (00:44) wrong based on 99 sessions

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8. The demand for airplane mechanics is expected to
largely because new federal rules calling for major
modifications to older planes
and because the air-
lines are adding hundreds of new jets.

(A) new federal rules calling for major modifica-
tions to older planes
(B) new federal rules, which call for major modifi-
cations to older planes
(C) new federal rules call for major modifications
to older planes
(D) major modifications to older planes called for
by new federal rules
(E) major modifications to older planes are called
for according to new federal rules

Even though I got it right but i took some time to figure it out. Please can some explain this sc
[Reveal] Spoiler: OA

_________________

Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html
-------------------------------------------------------------------------------------------------
Ajit

Kudos [?]: 777 [1], given: 11

Current Student
Status: Three Down.
Joined: 09 Jun 2010
Posts: 1915

Kudos [?]: 2206 [0], given: 210

Concentration: General Management, Nonprofit
Re: NEED SOME Help on this SC question [#permalink]

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05 Dec 2010, 10:21
ajit257 wrote:
8. The demand for airplane mechanics is expected to
largely because new federal rules calling for major
modifications to older planes
and because the air-
lines are adding hundreds of new jets.

(A) new federal rules calling for major modifica-
tions to older planes
(B) new federal rules, which call for major modifi-
cations to older planes
(C) new federal rules call for major modifications
to older planes
(D) major modifications to older planes called for
by new federal rules
(E) major modifications to older planes are called
for according to new federal rules

Even though I got it right but i took some time to figure it out. Please can some explain this sc

This is a parallelism issue. If you notice the structure, the clause "new federal rules calling for major
modifications to older planes" is not really parallel with the second clause. Any clause in the answer choices that pose the same problem of relative usage can be ruled out and hence we can eliminate A and B. D and E can be eliminated because of voice. Hence the answer is C.

Once again: Post the first few words of the question in the title AND tag the source.

Kudos [?]: 2206 [0], given: 210

Manager
Joined: 17 Sep 2010
Posts: 210

Kudos [?]: 18 [0], given: 33

Concentration: General Management, Finance
GPA: 3.59
WE: Corporate Finance (Entertainment and Sports)
Re: The demand for airplane mechanics [#permalink]

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05 Dec 2010, 10:42
C.

Sounded the best, but the phrase "new federal rules calling" doesn't make much sense.

ajit257 wrote:
8. The demand for airplane mechanics is expected to
largely because new federal rules calling for major
modifications to older planes
and because the air-
lines are adding hundreds of new jets.

(A) new federal rules calling for major modifica-
tions to older planes
(B) new federal rules, which call for major modifi-
cations to older planes
(C) new federal rules call for major modifications
to older planes
(D) major modifications to older planes called for
by new federal rules
(E) major modifications to older planes are called
for according to new federal rules

Even though I got it right but i took some time to figure it out. Please can some explain this sc

Kudos [?]: 18 [0], given: 33

Manager
Joined: 07 Oct 2010
Posts: 174

Kudos [?]: 179 [0], given: 10

Re: The demand for airplane mechanics [#permalink]

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05 Dec 2010, 12:42
Quote:
(A) new federal rules calling for major modifica-
tions to older planes.................................."calling for" unidiomatic

(B) new federal rules, which call for major modifi-
cations to older planes...............................wrong use of "which"

(C) new federal rules call for major modifications
to older planes.........................................."call for" correct idiom

(D) major modifications to older planes called for
by new federal rules...................................passive voice hence not preferable

(E) major modifications to older planes are called
for according to new federal rules.................awkward

Hence "C"

Kudos [?]: 179 [0], given: 10

Manhattan Prep Instructor
Joined: 22 Sep 2010
Posts: 184

Kudos [?]: 265 [2], given: 7

Schools: MBA, Thunderbird School of Global Management / BA, Wesleyan University
Re: The demand for airplane mechanics [#permalink]

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05 Dec 2010, 20:17
2
KUDOS
ajit257,

First off, Kudos to you for asking about a question that you got right! Too often we stop studying a question simply because we got it right, even if we didn't really master it.

Now: This question has a bunch of errors and common misconceptions, so I want to help break it down:

1. First issue: "because...calling for" (participles vs. verbs)

"New federal rules call for modifications to planes." --> This is correct. "New federal rules" is the subject, and "call" is the verb.

"New federal rules calling for modifications to planes were enacted by the FAA." --> This is also correct. Here, the subject is 'new federal rules" and "were enacted" is the predicate. The middleman "calling for modifications to planes" modifies the rules, and thus "calling" is a participle, not a verb.

What we have in this example is:

"New federal rules calling for modification...and..." --> This construction in A is incorrect. There would have to be a verb after "planes" for this to be OK, and there isn't.

2. Second issue: "new federal rules, which call for..." (modifiers)

The construction: "noun - comma - which" could be OK (for example: "The house on the left, which is blue, is huge.") since the noun modifier beginning with "which" correctly describes the noun preceding the comma. Again, as above, you would need a verb after "planes." Here, unfortunately, you don't have a verb for this subject.

3. "called for by" / "called for according to" (active vs passive voice)

In D and E, we have the passive voice: "modifications CALLED for BY" and "ARE CALLED FOR ACCORDING TO."

It's important to note that no SC answer choice will be wrong simply on the basis of passive vs. active verbs. Although we tend to prefer the active voice (many of your future Business school professors will point this out regularly), there is no rule that says "passive voice is wrong."

So D and E are wrong, but not necessarily because they are in passive voice. I'm happy to give this one away, but I'd rather see you smart folks out in cyber world solve this.

What's the most clear grammatical reason D and E are wrong?

Brett
_________________

Brett Beach-Kimball | Manhattan GMAT Instructor

Manhattan GMAT Discount | Manhattan GMAT Reviews

Kudos [?]: 265 [2], given: 7

GMAT Club Legend
Joined: 01 Oct 2013
Posts: 10107

Kudos [?]: 264 [0], given: 0

Re: The demand for airplane mechanics is expected to grow about [#permalink]

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30 Jul 2014, 16:38
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Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Kudos [?]: 264 [0], given: 0

Manager
Joined: 03 May 2015
Posts: 107

Kudos [?]: 15 [0], given: 48

Re: The demand for airplane mechanics is expected to grow about [#permalink]

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15 Sep 2015, 18:30
BKimball wrote:
ajit257,

First off, Kudos to you for asking about a question that you got right! Too often we stop studying a question simply because we got it right, even if we didn't really master it.

Now: This question has a bunch of errors and common misconceptions, so I want to help break it down:

1. First issue: "because...calling for" (participles vs. verbs)

"New federal rules call for modifications to planes." --> This is correct. "New federal rules" is the subject, and "call" is the verb.

"New federal rules calling for modifications to planes were enacted by the FAA." --> This is also correct. Here, the subject is 'new federal rules" and "were enacted" is the predicate. The middleman "calling for modifications to planes" modifies the rules, and thus "calling" is a participle, not a verb.

What we have in this example is:

"New federal rules calling for modification...and..." --> This construction in A is incorrect. There would have to be a verb after "planes" for this to be OK, and there isn't.

2. Second issue: "new federal rules, which call for..." (modifiers)

The construction: "noun - comma - which" could be OK (for example: "The house on the left, which is blue, is huge.") since the noun modifier beginning with "which" correctly describes the noun preceding the comma. Again, as above, you would need a verb after "planes." Here, unfortunately, you don't have a verb for this subject.

3. "called for by" / "called for according to" (active vs passive voice)

In D and E, we have the passive voice: "modifications CALLED for BY" and "ARE CALLED FOR ACCORDING TO."

It's important to note that no SC answer choice will be wrong simply on the basis of passive vs. active verbs. Although we tend to prefer the active voice (many of your future Business school professors will point this out regularly), there is no rule that says "passive voice is wrong."

So D and E are wrong, but not necessarily because they are in passive voice. I'm happy to give this one away, but I'd rather see you smart folks out in cyber world solve this.

What's the most clear grammatical reason D and E are wrong?

Brett

D - I guess has same problem as in A. it expects a verb after construction and 'called' is not a verb here.

E - This one was tough to reason out. I cant see any exact problem here. if not C, E would have been my option. Other than being passive when compared with C. Or the position of 'according to new fed rules' is incorrect? i guess..

Kudos [?]: 15 [0], given: 48

Re: The demand for airplane mechanics is expected to grow about   [#permalink] 15 Sep 2015, 18:30
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