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Sajjad1994
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Sajjad1994
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The Kopsky Company specializes in both
i) traditional window and door glazing systems,
including the installation of curtain walls,
and
ii) more modern pressure plate attachments, Z-joint fixtures, and the manufacturing of gaskets for large machinery.

It is not clear how the underlined phrase relates to the rest of the sentence.

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Any explanation on why is option E incorrect?
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will like to have detailed explanation.
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Here's my take on the question..

The question tests parallelism. The installation, Z-joints fixtures, and the manufacturing are all nouns and hence are parallel. Now Z-joints fixtures is a noun and hence all other components of the structure should also be nouns. However, all options except A violate this parallelism by either changing installation to installing, a verb or the manufacturing to manufacturing.

Can someone please review and tell if my approach is correct?
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Kalpit1212
Here's my take on the question..

The question tests parallelism. The installation, Z-joints fixtures, and the manufacturing are all nouns and hence are parallel. Now Z-joints fixtures is a noun and hence all other components of the structure should also be nouns. However, all options except A violate this parallelism by either changing installation to installing, a verb or the manufacturing to manufacturing.

Can someone please review and tell if my approach is correct?

This is the same approach that I used. The sentence is a bit confusing because they throw in the "more modern pressure plat attachments", but you just have to ignore that part and you see

Including:
1. the installation of curtain walls
2. Z-joint fixtures
3. The manufacturing of gaskets

All three are nouns, I think the key is to see that "Z joint fixtures" in all answer choices remains a noun so the other 2 elements must also be nouns.
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Sajjad1994
CottonL
Any explanation on why is option E incorrect?

Krishishere
will like to have detailed explanation.

Official Explanation

This sentence is correct as written.

The underlined portion of the sentence contains part of a list of items the Kopsky Company specializes in, so check that the items are parallel. The installation of curtain walls is parallel to the manufacturing of gaskets and are both parallel to the nouns traditional window and door glazing systems in the non-underlined portion of the sentence, so there is no parallel construction error. There appears to be no error in the original sentence, so keep choice A. Because there is no error in the original sentence, there are no obvious repeaters to look for, so evaluate the remaining answer choices individually, looking for reasons to eliminate each.

Choice B uses the verb installing, which is not parallel to the manufacturing of gaskets, so eliminate choice B for a parallel construction error.

Choice C uses the verb manufacturing, which is not parallel to the installation of curtain walls, so eliminate choice C for a parallel construction error.

Choice D uses the verbs installing and manufacturing, which are not parallel to the nouns traditional window and door glazing systems, so eliminate choice D for a parallel construction error.

Choice E also uses the verbs installing and manufacturing, which are not parallel to the nouns traditional window and door glazing systems, so eliminate choice E for a parallel construction error.

Alternatively, if it is difficult to spot which grammar rule the sentence is testing, another strategy is to try to identify an error from the answers by looking for either a 2/3 split or differences among the answer choices. Since three answer choices begin with the verb installing and the others begin with the noun the installation, this difference is an indication to look for parallel construction errors.

Choice A: Correct.

Choice B: No. The verb installing is not parallel to the manufacturing. Parallel construction.

Choice C: No. The verb manufacturing is not parallel to the installation. Parallel construction.

Choice D: No. The verbs installing and manufacturing are not parallel to the nouns traditional window and door glazing systems. Parallel construction.

Choice E: No. The verbs installing and manufacturing are not parallel to the nouns traditional window and door glazing systems. Parallel construction.

The correct answer is choice A.


How is A correct, installation is not parallel to manufacturing
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