Last visit was: 07 Jun 2026, 04:01 It is currently 07 Jun 2026, 04:01
Home
Messages
MBA Fair
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
User avatar
Praetorian
User avatar
Joined: 15 Aug 2003
Last visit: 27 Dec 2017
Posts: 2,867
Own Kudos:
1,734
Given Kudos: 781
Posts: 2,867
Kudos: 1,734
While working at the General Electric Research Laboratories, 05 Dec 2003, 03:48
Kudos
Add Kudos
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
N
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

(N/A)

Question Stats:

100% (01:38) correct 0% (00:00) wrong based on 2 sessions

History

Date
Time
Result
Not Attempted Yet
While working at the General Electric Research Laboratories, Dr. Irving Langmuir discovered that tungsten, which has an efficiency of more than 12 lumens per watt, can be used in incandescent lamps to replace carbon filaments, which have an efficiency of only 3 lumens per watt.


A.Dr. Irving Langmuir discovered that tungsten, which has an efficiency of more than 12 lumens per watt, can be used in incandescent lamps to replace carbon filaments, which have an efficiency of only 3 lumens per watt

B. Dr. Irving Langmuir discovered that tungsten filaments have an efficiency of more than 12 lumens per watt and can be used in incandescent lamps to replace carbon filaments, which have an efficiency of only 3 lumens per watt

C. Dr. Irving Langmuir's discovery was that tungsten filaments can be used in incandescent lamps to replace carbon filaments because it has an efficiency of more than 12 lumens per watt instead of only 3 lumens per watt

D. the discovery was made by Dr. Irving Langmuir that incandescent lamps can replace carbon filaments, which have an efficiency of 3 lumens per watt, with tungsten filaments, which have an efficiency of more than 12 lumens per watt

E. the ability in incandescent lamps to replace carbon filaments, which have an efficiency of 3 lumens per watt, with tungsten filaments, which have an efficiency of more than 12 lumens per watt, was discovered by Dr. Irving Langmui

this one got me!



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Sentence Correction (SC - EA only) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
User avatar
Praetorian
User avatar
Joined: 15 Aug 2003
Last visit: 27 Dec 2017
Posts: 2,867
Own Kudos:
1,734
Given Kudos: 781
Posts: 2,867
Kudos: 1,734
While working at the General Electric Research Laboratories, 05 Dec 2003, 04:09
Kudos
Add Kudos
Bookmarks
Bookmark this Post
stolyar
B?

my 3000th post
Show more


congrats...you've been an tremendous help.

explain your choice.
User avatar
pitts20042006
User avatar
Joined: 12 Oct 2003
Last visit: 12 Jun 2005
Posts: 175
Own Kudos:
18
Location: USA
Posts: 175
Kudos: 18
While working at the General Electric Research Laboratories, 05 Dec 2003, 05:24
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I vote for B too.
First option compares 'tungsten' with 'acrbon filaments'.
Option C and D seem to suggest that the Discovery was working n the laboratories.
Option E suggests the ability to be working in the Laboratories.
User avatar
dj
User avatar
Joined: 13 Nov 2003
Last visit: 25 Jun 2012
Posts: 556
Own Kudos:
1,046
Location: Florida
Posts: 556
Kudos: 1,046
While working at the General Electric Research Laboratories, 05 Dec 2003, 23:32
Kudos
Add Kudos
Bookmarks
Bookmark this Post
alright...I got B.

correctly compares Tungsten filaments with carbon's. while A compares tungsten with carbon filament.
User avatar
dj
User avatar
Joined: 13 Nov 2003
Last visit: 25 Jun 2012
Posts: 556
Own Kudos:
1,046
Location: Florida
Posts: 556
Kudos: 1,046
While working at the General Electric Research Laboratories, 05 Dec 2003, 23:34
Kudos
Add Kudos
Bookmarks
Bookmark this Post
stolyar
B?

my 3000th post
Show more


wow..! that's something to cherish. :P
User avatar
Praetorian
User avatar
Joined: 15 Aug 2003
Last visit: 27 Dec 2017
Posts: 2,867
Own Kudos:
1,734
Given Kudos: 781
Posts: 2,867
Kudos: 1,734
While working at the General Electric Research Laboratories, 05 Dec 2003, 23:39
Kudos
Add Kudos
Bookmarks
Bookmark this Post
dj
stolyar
B?

my 3000th post

wow..! that's something to cherish. :P
Show more


heartbreaker.... B is not correct

thanks
praetorian
User avatar
dj
User avatar
Joined: 13 Nov 2003
Last visit: 25 Jun 2012
Posts: 556
Own Kudos:
1,046
Location: Florida
Posts: 556
Kudos: 1,046
While working at the General Electric Research Laboratories, 05 Dec 2003, 23:42
Kudos
Add Kudos
Bookmarks
Bookmark this Post
praetorian123
dj
stolyar
B?

my 3000th post

wow..! that's something to cherish. :P

heartbreaker.... B is not correct

thanks
praetorian
Show more


okiee, b/c of this I will get 46 in verbal :wink:
User avatar
Zeka
User avatar
Joined: 22 Nov 2003
Last visit: 13 Feb 2005
Posts: 27
Own Kudos:
9
Location: Serbia
Posts: 27
Kudos: 9
While working at the General Electric Research Laboratories, 06 Dec 2003, 08:22
Kudos
Add Kudos
Bookmarks
Bookmark this Post
pitts20042006
I vote for B too.
First option compares 'tungsten' with 'acrbon filaments'.
Show more
I agree with this statement.

pitts20042006
I vote for B too.
Option C and D seem to suggest that the Discovery was working n the laboratories.
Option E suggests the ability to be working in the Laboratories.
Show more

C, D and E are typical examples of Errors in Dangling modifiers.

In my opinion , answer is A or B.
B is more "parallel" construction ...so then... B!
User avatar
Zeka
User avatar
Joined: 22 Nov 2003
Last visit: 13 Feb 2005
Posts: 27
Own Kudos:
9
Location: Serbia
Posts: 27
Kudos: 9
While working at the General Electric Research Laboratories, 06 Dec 2003, 14:52
Kudos
Add Kudos
Bookmarks
Bookmark this Post
look at comparisons:

A. tungsten - carbon filaments
B. tungsten filaments - carbon filaments

Maybe it isn't a classical example of parallelism, but I used " " :)
User avatar
Praetorian
User avatar
Joined: 15 Aug 2003
Last visit: 27 Dec 2017
Posts: 2,867
Own Kudos:
1,734
Given Kudos: 781
Posts: 2,867
Kudos: 1,734
While working at the General Electric Research Laboratories, Updated on: 06 Dec 2003, 19:31
Originally posted by Praetorian on 06 Dec 2003, 15:13.
Last edited by Praetorian on 06 Dec 2003, 19:31, edited 2 times in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Zeka
look at comparisons:

A. tungsten - carbon filaments
B. tungsten filaments - carbon filaments

Maybe it isn't a classical example of parallelism, but I used " " :)
Show more


EDIT : my bad pitt. i will try again. Bold part represents modified post

This is some good stuff from kaplan.

The Official Answer from kaplan is A...and i got it wrong.



In our case,

Dr Irving discovered that the tungsten can be used in incandescent lamps.

Thats the original idea of the sentence..isnt it.

in B..does that idea remain the same.

B changes the meaning. It says ...Dr Irving discovered that tungsten filaments have an efficiency of 12 lumens per watt...
But , thats not correct...isnt it.

Dr Irving only discovered that the tungsten can be used in incandescent lamps. we cant change the meaning of (A).

i dont think " tungsten" and " carbon filaments" is a big issue here
Do you even see a comparison?

i dont see "than" , "compared to" or " compared with" :)

thanks
praetorian
User avatar
pitts20042006
User avatar
Joined: 12 Oct 2003
Last visit: 12 Jun 2005
Posts: 175
Own Kudos:
18
Location: USA
Posts: 175
Kudos: 18
While working at the General Electric Research Laboratories, 06 Dec 2003, 18:40
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I can see that there is infact no comparison ... but I found your explanation a bit confusing.

Could you please elaborate little bit more clearly in as much detail as ...
User avatar
Zeka
User avatar
Joined: 22 Nov 2003
Last visit: 13 Feb 2005
Posts: 27
Own Kudos:
9
Location: Serbia
Posts: 27
Kudos: 9
While working at the General Electric Research Laboratories, Updated on: 06 Dec 2003, 20:40
Originally posted by Zeka on 06 Dec 2003, 20:30.
Last edited by Zeka on 06 Dec 2003, 20:40, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I didn't say that comparisons are from sentences...i said to look at mentioned compratisons...in sense of parallelism..
@Pretorian..you got a point there, B changes the meaning...
Where did you find this question?



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Sentence Correction (SC - EA only) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
Moderators:
GMATNinja
GMAT Club Verbal Expert
7395 posts
AbhishekP220108
666 posts