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# Cellular telephone towers are critical for their ability to allow wire

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Senior SC Moderator
Joined: 14 Nov 2016
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Location: Malaysia
Cellular telephone towers are critical for their ability to allow wire  [#permalink]

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21 Apr 2017, 22:37
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00:00

Difficulty:

5% (low)

Question Stats:

87% (01:17) correct 13% (01:04) wrong based on 115 sessions

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Cellular telephone towers are critical for their ability to allow wireless transmission of signals between cell phone users. Because many of the towers currently in use were built over a decade ago and rely on outdated circuitry, workers with specialized training are needed to repair them. Without repairs, a number of these older cell phone towers would soon fail. Thus, workers with the training required to repair older towers must continue to be utilized.

Which of the following, if true, most seriously weakens the argument above?

(A) Most people rely on cellular phones for email correspondence in addition to voice communication.
(B) Programs that specialize in training technicians to repair older circuitry are extremely expensive.
(C) Repairs attempted by unqualified technicians often result in further damage that requires subsequent and more extensive repairs.
(D) Manufacturers of cellular tower circuitry all claim that the circuitry will function reliably for at least five years.
(E) The high wages and scarcity of qualified repair technicians make repairing old cell phone towers more costly and time consuming than simply constructing new towers.

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Cellular telephone towers are critical for their ability to allow wire  [#permalink]

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13 Nov 2018, 08:55

Difficulty Level: 500

Official Explanation

Premise: Cellular telephone towers are critical for their ability to allow wireless transmission of signals between cell phone users.
Premise: Because many of the towers currently in use were built over a decade ago and rely on outdated circuitry, Subconclusion/Premise: workers with specialized training are needed to repair them.
Premise: Without repairs, a number of these older cell phone towers would soon fail.
Conclusion: Thus, workers with the training required to repair older towers must continue to be utilized.

The main conclusion of the argument appears at the end of the stimulus: “workers with the training required to repair older towers must continue to be utilized.” Note that there is a subconclusion present, but that subconclusion is used to support the main conclusion. To weaken the argument we must show that workers with the training do not have to be continued to be utilized.

Answer choice (A): This answer offers additional information that is not relevant to the workers under discussion. Email communications do not change the need for the cell phone towers, and so this answer has no effect on the argument.

Answer choice (B): While this answer provides information about the expense of training these workers, there is no comparative information provided that would allow us to determine that the workers are not necessary. Thus, while this answer could potentially be used as a starting point for an attack, there is no further avenue of attack, and the answer is incorrect.

Answer choice (C): This is an Opposite answer that supports the conclusion in the argument.

Answer choice (D): Regardless of manufacturer claims, when these towers fail they will need repairs, and thus there would be a need for workers with training (which is likely coming soon as “many” of the towers were built over a decade ago and the claim in this answer is only for at least five years of reliable operation). Thus, this is another Opposite answer that is incorrect.

Answer choice (E): This is the correct answer choice. If the statement in this answer is true, then the costs of the workers with training outweigh the costs of simply replacing the towers. Thus, instead of using qualified workers to repair old towers, the company can simply build a new tower as a replacement. Under this scenario, trained workers would not be necessary, and the conclusion is undermined.

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##### General Discussion
SC Moderator
Joined: 13 Apr 2015
Posts: 1689
Location: India
Concentration: Strategy, General Management
GMAT 1: 200 Q1 V1
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Cellular telephone towers are critical for their ability to allow wire  [#permalink]

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25 Apr 2017, 06:36
Question Type: Weaken

Main Point: Old tech. trained workers are required to repair towers
Assumption: New tech trained workers do not have the knowledge to repair towers.

(A) Most people rely on cellular phones for email correspondence in addition to voice communication. - Incorrect. Out of context.

(B) Programs that specialize in training technicians to repair older circuitry are extremely expensive. - Incorrect. They are expensive but they still address the problem.

(C) Repairs attempted by unqualified technicians often result in further damage that requires subsequent and more extensive repairs. - Incorrect. Opposite. This may strengthen the requirement for qualified old technicians.

(D) Manufacturers of cellular tower circuitry all claim that the circuitry will function reliably for at least five years. - Incorrect. Time period is irrelevant to the discussion.

(E) The high wages and scarcity of qualified repair technicians make repairing old cell phone towers more costly and time consuming than simply constructing new towers. - Correct. This weakens the argument by stating that old tech. workers are not needed as constructing new towers is much cheaper than servicing the old towers.

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WE: Engineering (Other)
Re: Cellular telephone towers are critical for their ability to allow wire  [#permalink]

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14 Oct 2017, 22:48
GMATNinja VeritasPrepKarishma

if programs are more expensive ,then it is no point in training workers.
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Re: Cellular telephone towers are critical for their ability to allow wire &nbs [#permalink] 14 Oct 2017, 22:48
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# Cellular telephone towers are critical for their ability to allow wire

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