Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2912:30 AM EDT
-01:30 AM EDT
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
Apr 3001:30 AM EDT
-02:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
May 0306:30 AM PDT
-08:30 AM PDT
Verbal trouble on GMAT? Fix it NOW! Join Sunita Singhvi for a focused webinar on actionable strategies to boost your Verbal score and take your performance to the next level.
17 Nov 2023, 05:16
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
86% (01:44) correct
14%
(02:10)
wrong
based on 204
sessions
History
Date
Time
Result
Not Attempted Yet
Automobile-emission standards are enforced through annual inspection. At those inspections, cars are tested while idling; that is, standing still with their engines running. Testing devices measure the levels of various pollutants as exhaust gases leave the tail pipe.
Which one of the following, if true, most strongly indicates that current enforcement of automobile-emission standards might be ineffective in controlling overall pollutant levels?
A) As an emission-control technology approaches its limits, any additional gains in effectiveness become progressively more expensive.
(B) The testing devices used must be recalibrated frequently to measure pollutant levels with acceptable accuracy.
(C) The adjustments needed to make a car idle cleanly make it likely that the car will emit high levels of pollutants when moving at highway speeds.
(D) Most car owners ask their mechanics to make sure that their cars are in compliance with emission standards.
(E) When emission standards are set, no allowances are made for older cars.
Which one of the following, if true, most strongly indicates that current enforcement of automobile-emission standards might be ineffective in controlling overall pollutant levels?
A) As an emission-control technology approaches its limits, any additional gains in effectiveness become progressively more expensive.
(B) The testing devices used must be recalibrated frequently to measure pollutant levels with acceptable accuracy.
(C) The adjustments needed to make a car idle cleanly make it likely that the car will emit high levels of pollutants when moving at highway speeds.
(D) Most car owners ask their mechanics to make sure that their cars are in compliance with emission standards.
(E) When emission standards are set, no allowances are made for older cars.
17 Nov 2023, 08:52
Kudos
Bookmarks
Explanation
Automobile-emission standards are enforced through annual inspection. At those inspections, cars are tested while idling; that is, standing still with their engines running. Testing devices measure the levels of various pollutants as exhaust gases leave the tail pipe.
Which one of the following, if true, most strongly indicates that current enforcement of automobile-emission standards might be ineffective in controlling overall pollutant levels?
This question is a plan question.
In this case, the plan is to use testing devices to measure the levels of various pollutants as exhaust gases leave the tail pipe of a car that is idling.
The purpose of the plan is found in the question stem: "controlling overall pollutant levels."
The correct answer will indicate that the plan "might not be effective" in achieving that purpose. So, this question is basically a Weaken question with the implied conclusion that the plan will be effective in controlling overall pollutant levels.
(A) As an emission-control technology approaches its limits, any additional gains in effectiveness become progressively more expensive.
There are two issues with this choice.
One is that we have no reason to believe that the emission-control technology currently in use is approaching its limits. So, we'd have to make an unsupported leap to the idea that the emission-control technology currently in use is approaching its limits for this choice to be relevant.
More importantly, this choice comes at the situation from the wrong direction. After all, even if gains in effectiveness of emissions-control technology become more expensive, testing automobiles in the way described by the plan could result in enforcement of emissions standards, which could result in controlling of overall pollutant levels. In other words, controlling pollutant levels might be expensive, but it could still work.
Eliminate.
(B) The testing devices used must be recalibrated frequently to measure pollutant levels with acceptable accuracy.
This choice has a vibe of weakening the argument because it mentions something that may seem to make it difficult for the plan to work, need for frequent recalibration of devices.
However, the truth is that what this choice mentions is just a normal part of the testing process. The fact that the process involves recalibrating devices doesn't at all indicate that it isn't effective.
Eliminate.
(C) The adjustments needed to make a car idle cleanly make it likely that the car will emit high levels of pollutants when moving at highway speeds.
To see that this choice indicates that the plan won't be effective in controlling pollutant levels, we need to notice a key detail of passage, which is that it says that, in the plan, "cars are tested while idling."
Since cars are tested while idling, this choice indicates that the plan may not work since, even though the tested cars emit low levels of pollutants, they will likely emit high levels of pollutants while operating on highways. So, the testing process described may not result in effective control of pollutant levels.
Keep.
(D) Most car owners ask their mechanics to make sure that their cars are in compliance with emission standards.
If anything, this choice strengthens rather than weakens the case for the believing that the plan will work since it appears that enforcement of emissions standards leads to car owners ensuring that their cars are in compliance with the standards.
Eliminate.
(E) When emission standards are set, no allowances are made for older cars.
If anything, this choice strengthens rather than weakens the case for the believing that the plan will work since it indicates that even older cars must be in compliance with the standards.
Eliminate.
Correct Answer
Automobile-emission standards are enforced through annual inspection. At those inspections, cars are tested while idling; that is, standing still with their engines running. Testing devices measure the levels of various pollutants as exhaust gases leave the tail pipe.
Which one of the following, if true, most strongly indicates that current enforcement of automobile-emission standards might be ineffective in controlling overall pollutant levels?
This question is a plan question.
In this case, the plan is to use testing devices to measure the levels of various pollutants as exhaust gases leave the tail pipe of a car that is idling.
The purpose of the plan is found in the question stem: "controlling overall pollutant levels."
The correct answer will indicate that the plan "might not be effective" in achieving that purpose. So, this question is basically a Weaken question with the implied conclusion that the plan will be effective in controlling overall pollutant levels.
(A) As an emission-control technology approaches its limits, any additional gains in effectiveness become progressively more expensive.
There are two issues with this choice.
One is that we have no reason to believe that the emission-control technology currently in use is approaching its limits. So, we'd have to make an unsupported leap to the idea that the emission-control technology currently in use is approaching its limits for this choice to be relevant.
More importantly, this choice comes at the situation from the wrong direction. After all, even if gains in effectiveness of emissions-control technology become more expensive, testing automobiles in the way described by the plan could result in enforcement of emissions standards, which could result in controlling of overall pollutant levels. In other words, controlling pollutant levels might be expensive, but it could still work.
Eliminate.
(B) The testing devices used must be recalibrated frequently to measure pollutant levels with acceptable accuracy.
This choice has a vibe of weakening the argument because it mentions something that may seem to make it difficult for the plan to work, need for frequent recalibration of devices.
However, the truth is that what this choice mentions is just a normal part of the testing process. The fact that the process involves recalibrating devices doesn't at all indicate that it isn't effective.
Eliminate.
(C) The adjustments needed to make a car idle cleanly make it likely that the car will emit high levels of pollutants when moving at highway speeds.
To see that this choice indicates that the plan won't be effective in controlling pollutant levels, we need to notice a key detail of passage, which is that it says that, in the plan, "cars are tested while idling."
Since cars are tested while idling, this choice indicates that the plan may not work since, even though the tested cars emit low levels of pollutants, they will likely emit high levels of pollutants while operating on highways. So, the testing process described may not result in effective control of pollutant levels.
Keep.
(D) Most car owners ask their mechanics to make sure that their cars are in compliance with emission standards.
If anything, this choice strengthens rather than weakens the case for the believing that the plan will work since it appears that enforcement of emissions standards leads to car owners ensuring that their cars are in compliance with the standards.
Eliminate.
(E) When emission standards are set, no allowances are made for older cars.
If anything, this choice strengthens rather than weakens the case for the believing that the plan will work since it indicates that even older cars must be in compliance with the standards.
Eliminate.
Correct Answer
06 May 2025, 17:37
Kudos
Bookmarks
Automated notice from GMAT Club VerbalBot:
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
