Machines powered by hydraulics are not driven by the steam

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Machines powered by hydraulics are not driven by the steam [#permalink]

31 Dec 2011, 15:38

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Question Stats:

52% (01:15) correct

47% (00:51) wrong

based on 2 sessions

Machines powered by hydraulics are not driven by the steam produced by boiling water, but rather,
high-pressure fluids are transmitted throughout the machine to various motors and hydraulic cylinders.

a) water, but rather
b) water, but instead
c) water; instead
d) water; rather
e) water; but

According to some gmat rules, "rather than" can take on either a clause or noun,
while "instead of" goes with only a noun.
In the question above, the portion after the underlined part is clearly a clause; in that case,
the correct response should be

[Reveal] Spoiler:

right?

[Reveal] Spoiler: OA

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Re: Machines powered by hydraulics [#permalink]

31 Dec 2011, 22:34

i was thinking of E. Because of not.....but ||ism

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Re: Machines powered by hydraulics [#permalink]

01 Jan 2012, 10:12

Neither the prepositional phrase ‘rather than’ nor ‘instead of’ is part of the choices in the issue. Only rather and instead are the issues. Hence, I feel there is no need to confuse with unmentioned choices here. . The thing to note is that that an independent but somewhat related clause should follow a semicolon.

Choices A and B fall out because of the redundant use of ‘but rather’ and ‘but instead’. Among the adverbs -instead and rather - and the conjunction ‘but, IMO, ‘instead’ fits into the groove better because of the precise meaning of “in that place” which is better than mere contrast markers such as ‘rather and but’

C is a winner by a whisker
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Re: Machines powered by hydraulics are not driven by the steam [#permalink]

22 Dec 2012, 11:49

I am unable to comprehend as to why A is incorrect.

Views, please?
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Re: Machines powered by hydraulics are not driven by the steam [#permalink]

22 Dec 2012, 13:45

This post received
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eaakbari wrote:

I am unable to comprehend as to why A is incorrect.

Views, please?

Machines powered by hydraulics are not driven by the steam produced by boiling water, but rather,
high-pressure fluids are transmitted throughout the machine to various motors and hydraulic cylinders.

a) water, but rather
b) water, but instead
c) water; instead
d) water; rather
e) water; but

Both options A and B are wrong due to redundancy issues ie but and rather BOTH show contrast , so only one of them is needed.
similarly instead and but have the same problem

AND instead is preferred to Rather here bcoz instead stands for replacement of one thing for another (high-pressure fuilds for steam) whereas rather stands for a choice b/w 2 alternatives or things. So it is C

Hope it is clear.
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Re: Machines powered by hydraulics are not driven by the steam [#permalink] 22 Dec 2012, 13:45

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