A production facility that requires its air to be free of particulate

Question

A production facility that requires its air to be free of particulate matter requires staff and visitors to enter the production floor by way of a single hallway that is interrupted at each of three points by a changing room. In each room, an entrant must change into a new lab jacket, a hat, and new clean shoe coverings after the room is blasted with air. The facility intends to speed up the process of entering the production facility by replacing the three rooms with two changing rooms of a new design whose method of blasting air is effective enough to maintain the required air quality.

Which of the following would be most important to know in determining whether the production facility's plan, if implemented, is likely to achieve its goal?

A. Whether the initial cost of the replacement and the additional cost of maintaining the new rooms over time is less than the additional earnings generated from time saved in the new process

B. Whether the time it will take to make the installation is worth the time that the installation will save

C. Whether the air blasting technique takes equal time in the current design of room and in the new design

D. Whether yet another air blasting technique would eliminate the need to wear lab jackets, hats, and clean shoe coverings

E. Whether staff and visitors also exit the production floor through the same changing rooms

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ribbons · Answer

Conclucion concerns with speed and effectiveness of the new method

ADE are out of scope and irrelevant

B talks about time but installation is a little farfetched concept to join the conclusion too- hold it though

C new design takes some time as old - aha this seems a better fit.
Test it -> new design takes more time that helps us evaluate whether its a good idea or not (imo not a good idea)
          -> new design takes less time that helps us evaluate whether its a good idea or not (imo a good idea)
Seeing that this question actually helps us answer if we reach our conclusion it seems the better option

Hence C

tgsankar10 · Answer

Company's Plan:  Switching from three room to two room cleaning method to  speed up the process or reduce time .

We need to find point which would support in speeding up the process or reduce time or both

A:  NO . Cost of the cleaning methods is not discussed. The aim is to speed up the process not about the cost of the process.
B:  NO . Irrelevant. Installation time will not help in evaluating the time taken for cleaning process

C: Correct.   The cleaning process before entering facility by reducing one changing room can only be sped up only if the new method takes equal or less time in a room as in current design

D:  NO . Not important. The new system could still need staff and visitors to wear lab jackets, hats, and clean shoe coverings. Also the difference between the two systems stated is the capacity of maintaining air quality
E:  NO . How they exit production facility is irrelevant to this discussion

captain0612 · Answer

IMO Choice C

The argument talks about a production facility that requires its air to be free of particulate matter, and the facilities current infrastructure design.

Current design - Single hallway, for both in and out, with 3 changing rooms attached to the hallway. Every room is blasted with air post which the entrants change into a new clean uniform.

Plan - Replace 3 changing rooms to 2, whose balsting of air is effective enough to maintain required air quality.

Goal - By reducing the number of changing rooms, the process can be sped up.

Question -  Evaluate.  (Select choice based on which we can either say that the Production facility is going to achieve it's goal or not)

A. Whether the initial cost of the replacement and the additional cost of maintaining the new rooms over time is less than the additional earnings generated from time saved in the new process  Cost doesn't matter as we care only about whether the time can be saved or not by implementing the plan  Incorrect

B. Whether the time it will take to make the installation is worth the time that the installation will save  Time to install is irrelavant. The comparison we need is total time taken to enter the production facility before and after implementing the plan  Incorrect

C. Whether the air blasting technique takes equal time in the current design of room and in the new design   Correct  This choice compares the total time taken to enter the production facility before and after implementing the plan. Based on the evaluation of this choice we will know whether the plan is successful or not

D. Whether yet another air blasting technique would eliminate the need to wear lab jackets, hats, and clean shoe coverings  Out of scope. The argument is not about a new technique to upgrade the facility, but rather to speed the overall process by shftign from 3 rooms to 2  Incorrect

E. Whether staff and visitors also exit the production floor through the same changing rooms  Doesn't matter. Whether they use the same hallway or not doesn't tell us anything about the time saved by replacing the 3 rooms with 2  Incorrect

Bunuel · Answer

OFFICIAL EXPLANATION:

Reading the question: this prompt gives us a plan. As we've discussed, a plan is like an argument in which the conclusion is, "This thing is going to work." We're switching from three little cleaning rooms to two, with a more vigorous blasting of air. And as we've discussed before, since we have answer choices that start with "whether," we will be able to evaluate by analysis of extreme cases. But we can start with a basic relevance filter. The "goal" of the plan is to "speed up the process of entering the production facility." Let's filter based on which answer choices are relevant to that goal.

Applying the filter: choice (A) does not pass the filter; the cost is irrelevant to whether or not the plan will work as proposed to speed up entry. Choice (B) concerns saving time, but it's still fails to pass the filter, because the objective of the plan is to speed up entering the production facility, not save all time for everyone on the planet in every conceivable way. Choice (C) has some potential. We consider one case: the time in the extra-blasty room is the same as the current room. It doesn't alone guarantee that the plan will work, but it doesn't ruin the plan. But if the air blasting in the new room takes a really long time, that will outweigh the time saved in changing jacket, hat, and shoe coverings only twice rather than three times. So (C) is in and is a good candidate for the right answer. Choice (D) is out, because while it might impact whether this plan is the best plan, it doesn't impact whether this plan will work, which is what we are after. Choice (E) sounds possibly relevant, but isn't as grounded in the argument as (E). For all we know, exiting interferes in no way with entry, so (E) is not necessarily relevant to achieving the goal.

Logical proof: we have already established logical proof of (C) through analysis by cases. Logical proof does not have to come last, and you may often naturally find yourself alternating between applying a filter and using the negation test. You just want to be careful not to forget about your filter, as people often do when they dig into the answer choices. Another caveat: matching against a prediction or basic relevance is much faster than applying the negation test.

The correct answer is (C).

dhruvshawarma · Answer

I see a problem with C 
If we evaluate whether the time taken is SAME 
Yes - ok so we can proceed with new plan 
No - 1. Takes more time - discard plan 
2. Takes less time - ok to proceed with pan

My concern is if the answers to the evaluation have the scope of encouraging or discouraging both together, why should we consider it ?

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sohailasif786 · Answer

As for C, suppose it takes 1 sec more than the previous design then also in total it will save time as previously no. Of rooms were 3.or suppose it takes less time then also we can proceed with 2 rooms , however time is not equal in both the cases . How can C be the answer

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A production facility that requires its air to be free of particulate

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A production facility that requires its air to be free of particulate

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