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QOTD: Lacking information about energy use

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QOTD: Lacking information about energy use [#permalink]

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Verbal Question of The Day: Day 64: Sentence Correction


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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

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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Re: QOTD: Lacking information about energy use [#permalink]

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Hm, lots of "that" going on here, plus some bonus pronoun and meaning stuff. If you're not sure what to do with the word "that", check out this crusty old article or this YouTube video.

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

The first "that" isn't quite right: it seems to be modifying "equipment," since "such as lights" is a self-contained little modifying phrase (an appositive, if you like grammar jargon), and the last chunk of the sentence is clearly discussing equipment in general, not just the lights. But there's a problem: "equipment... that are visible." Subject-verb fail.

What about the second "that"? It's a singular pronoun in this case, and I'd argue that it unambiguously refers back to "the amount of energy", since there's a super-clear parallel structure: "people tend to overestimate the amount of energy used by equipment [that is visible]... and underestimate that used by unobtrusive equipment..." And that seems completely fine: "people tend to... underestimate the amount of energy used by unobtrusive equipment" makes perfect sense.

But the first "that" is still a mess. Eliminate (A).

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

Same subject-verb error as in (A).

I'm also really not crazy about the use of "when" here: literally, they're saying that people underestimate the amount of energy used at the moment when the energy is used by unobtrusive equipment. And that's not quite right: the underestimate is something that happens in general, and not at a specific moment in time. Either way, (B) is out.

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

"...equipment... that IS visible" is right, but we have the same "when" problem as in (B). Now that I think about it, I'm also not crazy about the "it" -- the pronoun is a long way from its antecedent, "the amount of energy." The pronoun "that" is much clearer in (A) or (D), because of the parallel structure.

If you wanted to be conservative and hang onto (C) at first, that's great -- I would do the same. But as we'll see in a moment, there's a much better option.


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

Ooh, this looks great. No subject-verb issue, plus it's pleasantly succinct: "visible equipment... that must be turned on and off" is way better than "equipment that is visible and must be turned on and off." And as discussed above, "that" is a nice, clear pronoun. Keep (D).

Quote:
E. visible equipment, such as lights, that must be turned on and off and underestimate it when

The first part of the underlined portion is nice, but the last chunk "and underestimate it when" is a little bit shaky, both in terms of the pronoun agreement and the meaning of the word "when", as discussed above. (D) is clearly a better choice.
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Re: QOTD: Lacking information about energy use [#permalink]

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souvik101990 wrote:

Verbal Question of The Day: Day 65: Sentence Correction


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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

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

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.


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

'Equipment' is singular, and 'are' is plural. OUT

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

Same as A. OUT

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

Definitely word. We can say 'visible equipment' rather than 'equipment that is visible'
'it' - refers to the 'amount of energy'
The amount of energy when used by <- makes little sense. OUT.

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

'that' refers back to 'amount of energy' and I see no other errors. KEEP.

Quote:
E. visible equipment, such as lights, that must be turned on and off and underestimate it when

Same as C with the 'it when'

I'm going to go with D as the answer.
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Re: QOTD: Lacking information about energy use [#permalink]

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New post 27 Jul 2017, 12:49
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 - 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 -1. it can refer to equipment. 2. Incorrect usage of when

D. visible equipment, such as lights, that must be turned on and off and underestimate that-CORRECT.Second that correctly refers to amount of energy

E. visible equipment, such as lights, that must be turned on and off and underestimate it when -1. it can refer to equipment. 2. Incorrect usage of when
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Re: QOTD: Lacking information about energy use [#permalink]

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New post 27 Jul 2017, 16:27
souvik101990 wrote:

Verbal Question of The Day: Day 65: Sentence Correction


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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
,
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

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.


I am not sure "equipment" is a plural noun or singular noun, so I could NOT see difference between "that are" and "that is".

In terms of parallelism, I think 2 things are supposed to be parallel as the following structure:

-the amount of energy

+used by visible equipment

+used by unobtrusive equipment.

So, I need to put "visible" before "equipment" to make "visible equipment" parallel to "unobtrusive equipment". Having said that, I could eliminate A, B, C.

So, I'm down to D and E.

In D, "that" refers to "the amount of energy". The use of "that" also maintains parallel structure: people overestimate X used by Y...and underestimate X used by Z. So D seems good.

In E, "it" could refer to either "the amount of energy" or " visible equipment". I do not know.

Moreover, "when" should be followed by a clause, not the phrase of "used by unobtrusive equipment"

IMO D is better than E.

Waiting to learn from OE.

Thanks for the question :)

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Re: QOTD: Lacking information about energy use [#permalink]

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New post 28 Jul 2017, 02:55
If C did not had pronoun ambiguity "it"
would it be still correct?

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Re: QOTD: Lacking information about energy use [#permalink]

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New post 28 Jul 2017, 04:34
A. equipment, such as lights, that are visible and must be turned on and off and underestimate that Same as B

B. equipment, such as lights, that are visible and must be turned on and off and underestimate it when Same as C and are is plural used for equipment which is singular

C. equipment, such as lights, that is visible and must be turned on and off and underestimate it when Not parallel with unobtrusive equipment

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 WHEN is not used correctly

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Re: QOTD: Lacking information about energy use [#permalink]

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New post 28 Jul 2017, 06:30
The question tests us on SVA and parallelism. Options A & B are out because of SVA error. In option C & E , it is not parallel with amount of energy. Instead that has to be used. Therefore option D is the correct answer.
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Re: QOTD: Lacking information about energy use [#permalink]

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New post 28 Jul 2017, 10:25
haardiksharma wrote:
If C did not had pronoun ambiguity "it"
would it be still correct?



Hello haardiksharma,

I will be glad to help you out with this one. :-)

Even if the issue of pronoun it is resolved, Choice C will still remain incorrect for the usage of when.

See, the word when is used quite literally on GMAT SC. With the usage of this word, Choice C suggests that people underestimate the amount of energy when used by unobtrusive equipment. Otherwise they do not. Hence, usage of when makes Choice B, C, and E incorrect.


Hope this helps. :-)
Thanks.
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Re: QOTD: Lacking information about energy use [#permalink]

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Hi Verbal Experts,
Could someone explain why E is wrong?

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Re: QOTD: Lacking information about energy use [#permalink]

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New post 28 Jul 2017, 10:29
snjainpune wrote:
Hi Verbal Experts,
Could someone explain why E is wrong?


Hi snjainpune ,

Your query has been explained here.

Please let me know in case you have further questions.
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Re: QOTD: Lacking information about energy use [#permalink]

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New post 13 Sep 2017, 21:32
souvik101990 wrote:

Verbal Question of The Day: Day 64: Sentence Correction


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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

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

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.


Split 1
The sentence sets up contrast between visible equipment and unobtrusive equipment .
So the the meaning of lights that are visible does not make any sense

Split 2
that are visible and must be turned on in this clause parallelism is not correct .
Here it should have been That are visible and that must be turned on to make it parallel.

Split 3
Use of when is incorrect as we are just concerned about their energy usage not about when actually it does takes place .

So the answer is D
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Re: QOTD: Lacking information about energy use   [#permalink] 13 Sep 2017, 21:32
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