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# Lacking information about energy use, people tend to

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24 Apr 2015, 04:32
used by x and used by y should be parallel .. D is the winner!

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24 Apr 2015, 08:24
Edit: This discussion has retired. Find the new thread HERE

Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.

A. equipment, such as lights, that are visible and must be turned on and off and underestimate that

B. equipment, such as lights, that are visible and must be turned on and off and underestimate it when

C. equipment, such as lights, that is visible and must be turned on and off and underestimate it when

D. visible equipment, such as lights, that must be turned on and off and underestimate that

E. visible equipment, such as lights, that must be turned on and off and underestimate it when
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29 Apr 2015, 00:38
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Careful, grizzzlyy! There is nothing wrong with "changing the meaning" of the sentence. A has no more claim to be "the sentence" than D does. We need to look at all 5 answer choices to determine the intended meaning and then decide which answer choice conveys that meaning clearly. Sometimes we don't know what the intended meaning is until we narrow out the choices that are ungrammatical or confusing!
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12 Jun 2015, 19:38
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.

(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that - that refers to singular equipment. Are is wrongly placed.
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when - Same error as A. No correct antecedent for it. Use of when makes parallelism error.
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when - Use of it and when is not correct.
(D) visible equipment, such as lights, that must be turned on and off and underestimate that - visible equipment is parallel to unobtrusive equipment. No SV and Parallelism error. - Correct Answer
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when - Use of it and when is not correct.
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12 Jun 2015, 23:47
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that - Parallelism error
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it whenParallelism error
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it whenParallelism error
(D) visible equipment, such as lights, that must be turned on and off and underestimate that - Correct
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when - Parallelism error and use of when is wrong
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30 Jun 2015, 12:08
Can Somebody explain why A, B has sub-verb error
IMO D,E are better than A,B on the basis of being concise and short

Please point out if I am missing something here

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17 Mar 2016, 10:48
goodyear2013 wrote:
Lacking information about energy use, people tend to overestimate the amount of energy used by
equipment. such as lights, that are visible and must be turned on and off and underestimate that used by
unobtrusive equipment, such as water heaters.
(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when
(D) visible equipment, such as lights, that must be turned on and off and underestimate that
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when

In D - lights, which is a plural subject, is handled accordingly.

(D) visible equipment, such as lights, that must be turned on and off and underestimate that

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19 Mar 2016, 04:49
The vital clue is the ‘unobtrusive equipment’ in the un-underlined part. Its corresponding match should be ‘visible equipment’ and not equipment that is or are visible’. Therefore, A,B and C are out. Between D and E, E mars the parallelism by the intrusion of the word ‘when’ after ‘that’
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13 Aug 2016, 11:41
farzana87 wrote:
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that is visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.

Does it also have parallelism error?- Just because the first clause contains an explanation "that is visible and must be turned on and off" not present in the second clause?

No, Parallelism is not due to this.

Please see each explanation below :

(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that --> SV Error
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when --> SV Error
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when --> llism is between the amount of energy used by two equipments. 'It' non nonsensically refers to lights or equipments.
(D) visible equipment, such as lights, that must be turned on and off and underestimate that --> 'That' clearly refers to Amount of energy. Hence, correct answer.
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when --> Same as C.
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01 Jan 2017, 05:41
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that - Parallelism between visible equipment and unobtrusive equipment . Subject verb agreement
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when - Parallelism between visible equipment and unobtrusive equipment
usage of "it" and "when" is incorrect. "It" refers to the amount of energy used by equipment
Subject verb agreement issue
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when - Parallelism between visible equipment and unobtrusive equipment
usage of "it" and "when" is incorrect.
(D) visible equipment, such as lights, that must be turned on and off and underestimate that - Correct
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when - usage of "it" and "when" is incorrect

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02 Jan 2017, 23:52
Quickly got the D/E split, but I hastily gave the wrong answer. After 10 seconds of thought, I realize why D is correct.

(D) visible equipment, such as lights, that must be turned on and off and underestimate the amount of energythat

the amount of energy is implied.

(E) visible equipment, such as lights, that must be turned on and off and underestimate it when

No such parallelism exists in E

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08 Mar 2017, 00:09
RMD007 wrote:
I have following doubt in option D.

In option D - first "that" refers to "visible equipment" and second "that" refers to "the amount of energy".
How can the same "that" refer to two different entities in a sentence?

Hi RMD007, you ask a very good question.

The thing is that here, the first "that" is a completely different usage from the second "that".

The first "that" is used as a relative pronoun, while the second "that" is used as a demonstrative pronoun.

By the way, apart from these two usages, that also has a third usage: as a conjunction. All the three usages of "that" are quite frequently tested on GMAT.

p.s. Our book EducationAisle Sentence Correction Nirvana discusses the avatars of "that", their application and examples in significant detail. Have attached the corresponding section of the book, for your reference.
Attachments

Avatars of that.pdf [245.27 KiB]

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11 Mar 2017, 06:01
RMD007 wrote:
I selected option E and now know that it is wrong because of wrong usage of "when".

I have following doubt in option D.

In option D - first "that" refers to "visible equipment" and second "that" refers to "the amount of energy".
How can the same "that" refer to two different entities in a sentence?

Your query has already been very well explained by the EducationAisle expert.

The rule that the same pronoun cannot refer to different antecedents is applicable only for personal pronouns ( I, you, he, she, it, we, they, me, him, her, us, and them ).

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14 Mar 2017, 00:08
D Correct. In this sentence, the two adjectives visible and unobtrusive are parallel, and placing visible before equipment eliminates the verb and solves the agreement problem. The construction overestimate the amount of energy used by .. . and . . . underestimate that used by provides parallel structure.

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09 Apr 2017, 10:11
alice7 wrote:
I got a question about D. SO I was down between A and D. I rejected D because it says visible equipment, such as lights. Lights is not visible equipment and doesn't make sense. I dont understand this part. And Hence picked A.

I am not sure whether you are pointing at the scientific fact that light itself is invisible - if so then you have a misunderstanding of the meaning conveyed in the sentence. Here light is an equipment (not the wave). When a light (the equipment) is on you can visually make out, but when a heater is on you can't.

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27 May 2017, 03:57
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when no clear antecedent of it
(D) visible equipment, such as lights, that must be turned on and off and underestimate that correct
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when no clear antecedent of it

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27 May 2017, 20:37
Merged topics. Please, search before posting questions!
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21 Jul 2017, 22:03
Usage of "that are visible" is redundant, thus eliminate A,B & C. "It When" changes the meaning, thus D is correct

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22 Jul 2017, 00:31
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Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.

A. equipment, such as lights, that are visible and must be turned on and off and underestimate that -- 'equipment, such as lights, 'that are visible' is not parallel to 'unobtrusive' equipment.

B. equipment, such as lights, that are visible and must be turned on and off and underestimate it when -- same as in A

C. equipment, such as lights, that is visible and must be turned on and off and underestimate it when--- same as in A and B; 2. lights that is visible -- is an SV mistake.

D. visible equipment, such as lights, that must be turned on and off and underestimate that ---- 1. 'visible' and 'unobtrusive' - are parallel. 2. the relative pronoun 'that' correctly refers to the amount of energy -- correct choice.

E. visible equipment, such as lights, that must be turned on and off and underestimate it when -- 1. the antecedence of 'It' is un clear. It could refer to ' either equipment' (as a single equipment), or to the energy. 2. The adverb 'when' gives a wrong twist as if the under estimation occurs only when used by the equipment and not when they are idle. However, the idea here is a generalization about the equipment and not a comparison
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13 Sep 2017, 00:29
In the correct answer choice, can 'that' refer to 'amount of energy'? Because the subject of the previous clause is people and not amount of energy. For instance, if I say:

The quality of white rice is better than that of red rice. In this sentence, 'that' can refer back to quality because quality is the subject of the clause.

In this OG question, this does not seem to be the case. The subject is people. So how can 'that' refer back to 'amount of energy'?

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Re: Lacking information about energy use, people tend to   [#permalink] 13 Sep 2017, 00:29

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