GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 26 Sep 2018, 05:51

Close

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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Snowmaking machines work by spraying a mist that freezes immediately

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Intern
Intern
avatar
Joined: 11 Jul 2012
Posts: 49
Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 07 Aug 2012, 15:14
11
30
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

77% (01:35) correct 23% (01:54) wrong based on 3933 sessions

HideShow timer Statistics

The Official Guide for GMAT Review, 13th Edition, 2012

Practice Question
Question No.: CR 11
Page: 500

Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system.

Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be removed from wastewater.

(B) Many municipalities have old wastewater purification systems that need to be replaced.

(C) Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.

(D) During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance.

(E) Places where the winters are cold rarely have a problem of water shortage.

ID - CR03938
Most Helpful Expert Reply
e-GMAT Representative
User avatar
G
Joined: 02 Nov 2011
Posts: 2689
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 04 Jan 2013, 03:37
7
4
betterscore wrote:
Snowmaking machines work by spraying a mist that
freezes immediately on contact with cold air. Because
the sudden freezing kills bacteria, QuickFreeze is
planning to market a wastewater purification system
that works on the same principle. The process works
only when temperatures are cold, however, so
municipalities using it will still need to maintain a
conventional system.

Which of the following, if true, provides the strongest
grounds for a prediction that municipalities will buy
QuickFreeze's purification system despite the need to
maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be
removed from wastewater.

(B) Many municipalities have old wastewater
purification systems that need to be replaced.

(C) Conventional wastewater purification systems
have not been fully successful in killing bacteria
at cold temperatures.

(D) During times of warm weather, when it is not in
use, QuickFreeze's purification system requires
relatively little maintenance.

(E) Places where the winters are cold rarely have a
problem of water shortage.


Hi,

Let's first understand what QuickFreeze (QF) water-purification system is going to do:
QF is going to kill bacteria at cold temperatures only.
Since this will work only at cold temperatures, municipalities will need to keep conventional water purification systems also.

Now, it is given that municipalities will have conventional water-purification systems, whether they buy QF or not. What would make the municipalities buy QF?

They will buy it only if QF offers something, which conventional systems don't offer.

Now, as we go through the options, we see only option C provides an advantage that QF has over conventional systems. Thus, this is the correct choice.

However, let's also consider option A and B, since some of us have chosen these as the answer choices:

(A) Bacteria are not the only impurities that must be removed from wastewater. - But do conventional systems remove bacteria from wastewater? If they do, why would municipalities buy QF systems?

(B) Many municipalities have old wastewater purification systems that need to be replaced. - Clearly, QF systems can't replace old conventional systems, as is clearly stated. This option statement also doesn't provide any reason for municipalities to buy QF, along with conventional systems.

Hope this helps :)

Feel free to ask in case of any queries.

Meanwhile, dont forget to attend the SC session on Saturday. Please find the link below:
Image

Regards,
Chiranjeev
_________________












| '4 out of Top 5' Instructors on gmatclub | 70 point improvement guarantee | www.e-gmat.com

General Discussion
Senior Manager
Senior Manager
User avatar
Status: Final Countdown
Joined: 17 Mar 2010
Posts: 472
Location: India
GPA: 3.82
WE: Account Management (Retail Banking)
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 07 Aug 2012, 15:32
IMO (B); need OE or expert's suggestion.
_________________

" Make more efforts "
Press Kudos if you liked my post

Intern
Intern
avatar
Joined: 17 Sep 2011
Posts: 12
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 07 Aug 2012, 22:51
1
thevenus wrote:
IMO (B); need OE or expert's suggestion.


I am not an expert but may be my 2 cents may help you get the point of the argument.

What are we looking for ? We are looking for a reason to buy QUICK freezer at first place when they have conventional system.

B :- It tells us that we have old QUICK FREEZER that needs to be repllaced but it does not tell us that why the municipality will but it when they have conventional system

C;- It correctly tells the reason why we need a Quick freezer in winter season.

HTH
Manager
Manager
User avatar
B
Joined: 31 Aug 2011
Posts: 199
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 10 Aug 2012, 10:01
2
B old system need replacement . municipality can purchase any not imp this new one

C the conventional one does not work in winter. . we need a new one a different one for winter so this one can do the job
_________________

If you found my contribution helpful, please click the +1 Kudos button on the left, I kinda need some =)

Intern
Intern
avatar
Joined: 29 Dec 2011
Posts: 41
Snowmaking machines work by spraying a mist that freezes  [#permalink]

Show Tags

New post Updated on: 04 Jul 2014, 15:47
1
1
Hi there,
I looked at this question, scanned the answer choices, and saw immediately the answer. I later realized there were some other possible answer choices, which I probably should have considered, but looking back, I'd probably be in two minds about whether that answer choice was correct. How'd you go about eliminating the other answer choices?
Thanks again.

------------------------------------------
Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system.

Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be removed from wastewater.

(B) Many municipalities have old wastewater purification systems that need to be replaced.

(C) Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.

(D) During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance.

(E) Places where the winters are cold rarely have a problem of water shortage

Originally posted by elegan on 30 Oct 2012, 00:19.
Last edited by carcass on 04 Jul 2014, 15:47, edited 1 time in total.
Formatted the question
VP
VP
User avatar
Joined: 02 Jul 2012
Posts: 1188
Location: India
Concentration: Strategy
GMAT 1: 740 Q49 V42
GPA: 3.8
WE: Engineering (Energy and Utilities)
Premium Member
Re: Snowmaking machines work by spraying a mist that freezes  [#permalink]

Show Tags

New post 30 Oct 2012, 00:32
3
Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, a using it, so Municipalities will still need to maintain a conventional system.

Which of the following, if true, provides the strongest grounds for a prediction that the Purification Municipalities will buy QuickFreeze's system despite the need to maintain a conventional Purification system as well?

(A)Bacteria are not the only impurities that must be removed from wastewater. Out of scope or actually can even be used to weaken the argument. Wrong answer

(B)Many Municipalities have old wastewater Purification Systems that need to be replaced. Out of scope. Has no relevance at all.

(C)Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures. The argument says that these machines can kill bacteria at cold temperatures. If there is not a fully successful purification system to kill bacteria at cold temperatures then it would make sense to buy new technology which we beleive would be successful. Answer

(D)During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance. Out of scope. Has no relevance at all. Wrong Answer

(E)Places, the where the winters are cold rarely have a problem of water on shortage. Out of scope or maybe can even be used to weaken the argument. Wrong answer

Kudos Please... If my post helped.
_________________

Did you find this post helpful?... Please let me know through the Kudos button.

Thanks To The Almighty - My GMAT Debrief

GMAT Reading Comprehension: 7 Most Common Passage Types

Manager
Manager
User avatar
B
Status: Fighting hard
Joined: 04 Jul 2011
Posts: 63
GMAT Date: 10-01-2012
Re: Snowmaking machines work by spraying a mist that freezes  [#permalink]

Show Tags

New post 30 Oct 2012, 01:34
1
(A)Bacteria are not the only impurities that must be removed from wastewater.
Makes no impact. On the other hand could be just weakening the weightage of the Municipalities trying to buy the Quick Freeze machines

(B)Many Municipalities have old wastewater Purification Systems that need to be replaced.
Does not help us to justify acquisition of Quick Freeze machines

(C)Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.
The option which best supports the prediction by showing a limitation in Municipalities which can be fixed by using QuickFreeze machines

(D)During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance.
Does not give Municipalities a reason to buy Quick Freeze systems
(E)Places, the where the winters are cold rarely have a problem of water on shortage.
The statement leads us nowhere.
_________________

I will rather do nothing than be busy doing nothing - Zen saying

Director
Director
avatar
Joined: 03 Aug 2012
Posts: 805
Concentration: General Management, General Management
GMAT 1: 630 Q47 V29
GMAT 2: 680 Q50 V32
GPA: 3.7
WE: Information Technology (Investment Banking)
Premium Member
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 03 Jan 2013, 22:32
1
Snowmaking machines work by spraying a mist that
freezes immediately on contact with cold air. Because
the sudden freezing kills bacteria, QuickFreeze is
planning to market a wastewater purification system
that works on the same principle. The process works
only when temperatures are cold, however, so
municipalities using it will still need to maintain a
conventional system.

Which of the following, if true, provides the strongest
grounds for a prediction that municipalities will buy
QuickFreeze's purification system despite the need to
maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be
removed from wastewater.

IMO , this is correct as the QF kills only bacteria we need CONV systems to kill other impurities found in water.So this statement clears that we need CONV system for other impurities and QF for bacteria.

(B) Many municipalities have old wastewater
purification systems that need to be replaced.

Doesn't tell why we need to keep CONV systems

(C) Conventional wastewater purification systems
have not been fully successful in killing bacteria
at cold temperatures.

This tells us that CONV systems are unable to kill bacteria but doesn't tell whether we need to keep CONV systems or not

(D) During times of warm weather, when it is not in
use, QuickFreeze's purification system requires
relatively little maintenance.
OOS

(E) Places where the winters are cold rarely have a
problem of water shortage.

OOS

Reasoning as mentioned above, need a discussion on this so that we can reach consensus.

Rgds,
saurabh
VP
VP
avatar
S
Joined: 09 Jun 2010
Posts: 1026
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 26 Jan 2013, 06:42
1
egmat wrote:
betterscore wrote:
Snowmaking machines work by spraying a mist that
freezes immediately on contact with cold air. Because
the sudden freezing kills bacteria, QuickFreeze is
planning to market a wastewater purification system
that works on the same principle. The process works
only when temperatures are cold, however, so
municipalities using it will still need to maintain a
conventional system.

Which of the following, if true, provides the strongest
grounds for a prediction that municipalities will buy
QuickFreeze's purification system despite the need to
maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be
removed from wastewater.

(B) Many municipalities have old wastewater
purification systems that need to be replaced.

(C) Conventional wastewater purification systems
have not been fully successful in killing bacteria
at cold temperatures.

(D) During times of warm weather, when it is not in
use, QuickFreeze's purification system requires
relatively little maintenance.

(E) Places where the winters are cold rarely have a
problem of water shortage.


Hi,

Let's first understand what QuickFreeze (QF) water-purification system is going to do:
QF is going to kill bacteria at cold temperatures only.
Since this will work only at cold temperatures, municipalities will need to keep conventional water purification systems also.

Now, it is given that municipalities will have conventional water-purification systems, whether they buy QF or not. What would make the municipalities buy QF?

They will buy it only if QF offers something, which conventional systems don't offer.

Now, as we go through the options, we see only option C provides an advantage that QF has over conventional systems. Thus, this is the correct choice.

However, let's also consider option A and B, since some of us have chosen these as the answer choices:

(A) Bacteria are not the only impurities that must be removed from wastewater. - But do conventional systems remove bacteria from wastewater? If they do, why would municipalities buy QF systems?

(B) Many municipalities have old wastewater purification systems that need to be replaced. - Clearly, QF systems can't replace old conventional systems, as is clearly stated. This option statement also doesn't provide any reason for municipalities to buy QF, along with conventional systems.

Hope this helps :)

Feel free to ask in case of any queries.

Meanwhile, dont forget to attend the SC session on Saturday. Please find the link below:
Image

Regards,
Chiranjeev


Thank you e gmat. I am e gmat customer.
the process you do before going to answer choices is prethinking. I think that the success on cr is based on this prethinking. we need to do something before going to answer choices. we need to be armed with something before looking at the answer choices which are traps.
your prethinking is great.

however, the following question from gmatprep is hard for us to prethink an assumption. pls help us prethink . thank you.
press-secretary-our-critics-claim-that-the-president-s-16458.html

Press secretary: Our critics claim that the President's recent highway project cancellations demonstrate a vindictive desire to punish legislative districts controlled by opposition parties. They offer as evidence the fact that 90% of the projects cancelled were in such districts. But all of the cancelled projects had been identified as wasteful in a report written by respected nonpartisan auditors. So the President's choice was clearly motivated by sound budgetary policy, not partisan politics.
Which of the following is an assumption on which the press secretary's argument depends?
A. Canceling highway projects was not the only way for the President to punish legislative districts controlled by opposition parties.
B. The scheduled highway projects identified as wasteful in the report were not mostly projects in districts controlled by the President's party.
C. The number of projects cancelled was a significant proportion of all the highway projects that were to be undertaken by the government in the near future.
D. Nonpartisan auditors were President's friends.
E. Reports by nonpartisan auditors are not generally regarded by the opposition parties as a source of objective assessment of government projects.
_________________

visit my facebook to help me.
on facebook, my name is: thang thang thang

Intern
Intern
User avatar
Joined: 16 Nov 2012
Posts: 27
Location: United States
Concentration: Operations, Social Entrepreneurship
Schools: ISB '15, NUS '16
GMAT Date: 08-27-2013
GPA: 3.46
WE: Project Management (Other)
Reviews Badge
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 26 Aug 2013, 02:39
1
egmat wrote:
betterscore wrote:
Snowmaking machines work by spraying a mist that
freezes immediately on contact with cold air. Because
the sudden freezing kills bacteria, QuickFreeze is
planning to market a wastewater purification system
that works on the same principle. The process works
only when temperatures are cold, however, so
municipalities using it will still need to maintain a
conventional system.

Which of the following, if true, provides the strongest
grounds for a prediction that municipalities will buy
QuickFreeze's purification system despite the need to
maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be
removed from wastewater.

(B) Many municipalities have old wastewater
purification systems that need to be replaced.

(C) Conventional wastewater purification systems
have not been fully successful in killing bacteria
at cold temperatures.

(D) During times of warm weather, when it is not in
use, QuickFreeze's purification system requires
relatively little maintenance.

(E) Places where the winters are cold rarely have a
problem of water shortage.


Hi,

Let's first understand what QuickFreeze (QF) water-purification system is going to do:
QF is going to kill bacteria at cold temperatures only.
Since this will work only at cold temperatures, municipalities will need to keep conventional water purification systems also.

Now, it is given that municipalities will have conventional water-purification systems, whether they buy QF or not. What would make the municipalities buy QF?

They will buy it only if QF offers something, which conventional systems don't offer.

Now, as we go through the options, we see only option C provides an advantage that QF has over conventional systems. Thus, this is the correct choice.

However, let's also consider option A and B, since some of us have chosen these as the answer choices:

(A) Bacteria are not the only impurities that must be removed from wastewater. - But do conventional systems remove bacteria from wastewater? If they do, why would municipalities buy QF systems?

(B) Many municipalities have old wastewater purification systems that need to be replaced. - Clearly, QF systems can't replace old conventional systems, as is clearly stated. This option statement also doesn't provide any reason for municipalities to buy QF, along with conventional systems.

Hope this helps :)

Feel free to ask in case of any queries.

Meanwhile, dont forget to attend the SC session on Saturday. Please find the link below:
Image

Regards,
Chiranjeev





In C ,What is the need of maintaining a conventional system when the QF is eliminating all the bacteria ?

If option C is the answer it is contradicting the question stem,in my opinion.
_________________

.........................................................................................
Please give me kudos if my posts help.

e-GMAT Representative
User avatar
G
Joined: 02 Nov 2011
Posts: 2689
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 26 Aug 2013, 23:00
1
pavanpaone wrote:

In C ,What is the need of maintaining a conventional system when the QF is eliminating all the bacteria ?


Look at the last statement of the passage:

"he process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system"

pavanpaone wrote:
If option C is the answer it is contradicting the question stem,in my opinion.


How does it contradict the question stem?

Before you respond, please remember that this is an official question and by thinking that this is incorrect in one way or the other, we just mean that we are not able to understand it. The official questions ARE ALWAYS CORRECT.

Thanks,
Chiranjeev
_________________












| '4 out of Top 5' Instructors on gmatclub | 70 point improvement guarantee | www.e-gmat.com

Intern
Intern
User avatar
Joined: 16 Nov 2012
Posts: 27
Location: United States
Concentration: Operations, Social Entrepreneurship
Schools: ISB '15, NUS '16
GMAT Date: 08-27-2013
GPA: 3.46
WE: Project Management (Other)
Reviews Badge
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 27 Aug 2013, 01:50
egmat wrote:
pavanpaone wrote:

In C ,What is the need of maintaining a conventional system when the QF is eliminating all the bacteria ?


Look at the last statement of the passage:

"he process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system"

pavanpaone wrote:
If option C is the answer it is contradicting the question stem,in my opinion.


How does it contradict the question stem?

Before you respond, please remember that this is an official question and by thinking that this is incorrect in one way or the other, we just mean that we are not able to understand it. The official questions ARE ALWAYS CORRECT.



Thanks,
Chiranjeev


As per my knowledge there r questions in official gmat which are ambiguous in nature.

The only point on which I said C is ambiguous because the CR clearly mentioned that if QF should be used ,it should be used along with the conventional purification system.My question is what is the use Conventional purification when QF is doing the whole purification?

If the option reworded as " QF is used during cold temperature and during hot temperatures QF is replaced with conventional system" then the option is apt according to the info given in the CR i.e QF only works in the cold temperature.

In this type of ambiguous que I usually go with POE.

I hope you understood what I mean to say.
_________________

.........................................................................................
Please give me kudos if my posts help.

e-GMAT Representative
User avatar
G
Joined: 02 Nov 2011
Posts: 2689
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 27 Aug 2013, 02:12
pavanpaone wrote:
As per my knowledge there r questions in official gmat which are ambiguous in nature.


It might be true but even if it is so, it applies to only around 1% of the questions. However, this knowledge is dangerous since you may apply this knowledge to every CR question you are not able to understand. So, you should be very very careful when you use this knowledge to challenge official questions.

pavanpaone wrote:
The only point on which I said C is ambiguous because the CR clearly mentioned that if QF should be used ,it should be used along with the conventional purification system.My question is what is the use Conventional purification when QF is doing the whole purification?


The point is that QF works at cold temperatures only. So, you need another system that would work at not-so-cold temperatures. For example: a lot of air conditioners work only during summers when they lower down the room temperature; during winters, you need heaters to make the room temperature moderate. It does not mean that either air conditioners or heaters are not required. Both are required at different times.

pavanpaone wrote:
If the option reworded as " QF is used during cold temperature and during hot temperatures QF is replaced with conventional system" then the option is apt according to the info given in the CR i.e QF only works in the cold temperature.

In this type of ambiguous que I usually go with POE.

I hope you understood what I mean to say.

The option statement need not be reworded. Rather, the rewording you are suggesting does not present any problem with using conventional systems during cold weather. How does this reworded option statement make you believe that the municipalities will buy QF?

-Chiranjeev
_________________












| '4 out of Top 5' Instructors on gmatclub | 70 point improvement guarantee | www.e-gmat.com

Intern
Intern
avatar
Joined: 18 Apr 2015
Posts: 2
Schools: Cranfield '16
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 29 Jul 2015, 07:25
1
OA is c.

My approach : prediction- Municipalities will buy QF despite the need to maintain a conventional one as well. Strongest ground for this prediction will be something that supports this decision of maintaining QF despite the already present conventional one. Now, why on earth will the municipality buy QF when it already has the conv. one? Only when the QF gives some advantage over the one already in use. So, prethinking on this line, would help you to look out for an option that mentions an ADVANTAGE of QF over the conv. one. Any aspirant who prethinks on this line, is bound to mark the right answer..:)
Now, lets start with options.
Option A does not address the right issue. We need the option to discuss an ADVANTAGE of QF. Rather this option points out some flaw in the system ( There are other micro organisms present in the water, but sadly, QF cannot help us remove them ). This option, if anything, weakens the prediction. Therefore option A is incorrect.
Option B Fine. Many municipalities might have old waste water systems that need replacement. But then, even if it is true, how does it strengthen the fact that QF is needed despite the conventional one. ( Remember, the question does not want to replace the old systems with QF alone. It wants us to consider a case where QF would be needed despite the conv. one ). Therefore this statement digresses from the main line of prediction :) . You can also think it from a different angle. Since this option does not deal with the advantage of QF over conv., it's wrong.
Option C is correct , because it rightly discusses the advantage of QF. ( Remember, no one is mad to use QF despite having conv. one if QF has no advantage over the conv. purifier.
Option D This does deal with a good point about the QF. Great!!!. maintenance can be a factor, but its always secondary to the advantage mentioned in Option C. Honestly speaking, this can be the answer, but only when a better option like C is not present.Also, the option might address the fact that QF is great to use, but it does not mention a reason of using it, even when a conventional one is already present.
Option E is straightaway irrelevant.

Hope it helps. Kindly show support..:)
SVP
SVP
avatar
B
Joined: 06 Nov 2014
Posts: 1886
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 07 Jul 2016, 09:58
betterscore wrote:
OG16 CR5
Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system.

Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be removed from wastewater.

(B) Many municipalities have old wastewater purification systems that need to be replaced.

(C) Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.

(D) During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance.

(E) Places where the winters are cold rarely have a problem of water shortage.

Edit: formatted

Snowmaking machine produces mist that freezes immediately and kills bacteria
QuickFreeze is making purification system based on this but it works only in cold temperature.

We need to give a reason why municipalities will buy this inspite of the limitation.

Only option C tells us the reason by saying that the conventional methods do not work in cold environment
Hence QuickFreeze can fill the gap.

Correct Option: C
Manager
Manager
User avatar
B
Status: On the journey of achieving
Affiliations: Senior Manager, CA by profession, CFA(USA) Level 2
Joined: 06 Feb 2016
Posts: 178
Location: India
Concentration: Finance, Finance
GMAT 1: 560 Q44 V21
GPA: 3.82
WE: Other (Commercial Banking)
Reviews Badge CAT Tests
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 14 Apr 2018, 09:38
Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be removed from wastewater. Even if there are other impurities whether existing conventional purification system is able to counter or not is not relevant as we need for strengthener something which provides us with the reason what extra benefit Quick Freeze purification system is able to provide. So in nut shell not affecting the argument at all

(B) Many municipalities have old wastewater purification systems that need to be replaced.It does not provides us with the reason of why we need Quick Freeze purification system. It does not strengthens the argument

(C) Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.CORRECT as conventional system does not works in winter...Hence we would require Quick Freeze purification system additionally

(D) During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance.- Out of Scope as we are not concerned with the maintenance cost here

(E) Places where the winters are cold rarely have a problem of water shortage - Out of Scope
_________________

Never Settle for something less than what you deserve...........

I've failed over and over and over again in my life and that is why I succeed--Michael Jordan
Kudos drives a person to better himself every single time. So Pls give it generously
Wont give up till i hit a 700+

Senior Manager
Senior Manager
User avatar
P
Joined: 14 Dec 2017
Posts: 480
Re: Snowmaking machines work by spraying a mist that freezes immediately  [#permalink]

Show Tags

New post 13 Jun 2018, 10:46
betterscore wrote:
OG16 CR5
Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system.

Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?

(A) Bacteria are not the only impurities that must be removed from wastewater.

(B) Many municipalities have old wastewater purification systems that need to be replaced.

(C) Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures.

(D) During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance.

(E) Places where the winters are cold rarely have a problem of water shortage.

Edit: formatted


Question Type: Strengthen

Premise 1: Since sudden freezing kills bacteria, Quickfreeze, is planning to market a waste water purification system, that works on the principle of snow making machines.

Conclusion: Municipalities planning to use quick freeze will still have to maintain their conventional systems, as quick freeze works only in cold temperatures.

Analysis: Since the question is asking to strengthen this decision taken by the municipalities, there needs to be a compelling reason for them to bear the additional cost of Quick freeze in addition to conventional systems. Either Quickfreeze provides a benefit which it does since it kills bacteria at cold temperatures, which conventional systems may or may not or in cold temperatures due to harsh weather conditions Quickfreeze is an easier method to deploy than conventional systems. The correct answer needs to support the use of quick freeze in winters despite conventional systems still being operational.

(A) Bacteria are not the only impurities that must be removed from wastewater. - Hence the simultaneous requirement of conventional system, however does not strengthen the need for Quick freeze, Incorrect

(B) Many municipalities have old wastewater purification systems that need to be replaced. - Argument does not say about anything replacing conventional system. Incorrect.

(C) Conventional wastewater purification systems have not been fully successful in killing bacteria at cold temperatures. - Hence at Cold temperatures the municipalities need an alternate method to kill this bacteria, therefore Quick freeze is required. Perfect. Correct

(D) During times of warm weather, when it is not in use, QuickFreeze's purification system requires relatively little maintenance. Not enough a compelling reason to use quick freeze. Incorrect

(E) Places where the winters are cold rarely have a problem of water shortage. Out of context. Incorrect.


Thanks,
GyM
_________________

New to GMAT Club - https://gmatclub.com/forum/new-to-gmat-club-need-help-271131.html#p2098335

GMAT Club Bot
Re: Snowmaking machines work by spraying a mist that freezes immediately &nbs [#permalink] 13 Jun 2018, 10:46
Display posts from previous: Sort by

Snowmaking machines work by spraying a mist that freezes immediately

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.