Non functioning satellites

This topic has expert replies
Master | Next Rank: 500 Posts
Posts: 438
Joined: Mon Feb 12, 2007 9:44 am
Thanked: 26 times

Non functioning satellites

by chidcguy » Wed Jun 11, 2008 7:11 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Which of the following most logically completes the argument below?
Although the number of large artificial satellites orbiting the Earth is small compared to the number of small pieces of debris in orbit, the large satellites interfere more seriously with telescope observations because of the strong reflections they produce. Because many of those large satellites have ceased to function, the proposal has recently been made to eliminate interference from nonfunctioning satellites by exploding them in space.
This proposal, however, is ill conceived, since _______.

A. many nonfunctioning satellites remain in orbit for years
B. for satellites that have ceased to function, repairing them while they are in orbit would be prohibitively expensive
C. there are no known previous instances of satellites' having been exploded on purpose
D. the only way to make telescope observations without any interference from debris in orbit is to use telescopes launched into extremely high orbits around the Earth
E. a greatly increased number of small particles in Earth's orbit would result in a blanket of reflections that would make certain valuable telescope observations impossible

Master | Next Rank: 500 Posts
Posts: 167
Joined: Tue Apr 22, 2008 12:48 am
Thanked: 15 times

by durgesh79 » Wed Jun 11, 2008 8:45 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

we have to find out a statement that weakens the proposal that exploding satellites will improve the telescope observation.

Consider E - exploding large satellites will result in many small pieces, that will make certain telescopic observation impossible. clearly goes against exploding the satellites.

IMO E.

Master | Next Rank: 500 Posts
Posts: 438
Joined: Mon Feb 12, 2007 9:44 am
Thanked: 26 times

by chidcguy » Wed Jun 11, 2008 8:55 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Same reasoning and same answer.

OA is D

what has exploding satellites got to do with the concept in D?

Also, it says only way. Which is another huge negative thing

Master | Next Rank: 500 Posts
Posts: 167
Joined: Tue Apr 22, 2008 12:48 am
Thanked: 15 times

Re: Non functioning satellites

by durgesh79 » Thu Jun 12, 2008 1:33 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

:? Now if look it again, OA Makes sense. In the question the proposal is to "eliminate" interference. If it was to "reduce" then may be E was a better answer.
chidcguy wrote:the proposal has recently been made to eliminate interference from nonfunctioning satellites by exploding them in space.
This proposal, however, is ill conceived, since _______.
If D is true, we know the only way to do it is xxxx.......... means exploding satelliets will not eliminate it.

Senior | Next Rank: 100 Posts
Posts: 83
Joined: Wed Jun 04, 2008 3:30 am
Thanked: 4 times

by albertrahul » Thu Jun 12, 2008 7:23 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Good Question, Thanks for posting.
I also went for E.

After knowing OA I read question more carefully.

User avatar
Community Manager
Posts: 991
Joined: Thu Sep 23, 2010 6:19 am
Location: Bangalore, India
Thanked: 146 times
Followed by:24 members

by shovan85 » Mon Sep 27, 2010 5:50 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Its still E for me.

D does not suffice as it is clearly said the Debris do not cause that much problem but the satellites do because of reflection. If you do not explode them then they are still causing the same problem to the Telescopes irrespective of where the telescopes are placed. The premises clearly say that Satellites are causing problem to telescopic observations.

I am not at all convinced about D. Can any one help me on this?

Master | Next Rank: 500 Posts
Posts: 201
Joined: Sat Jul 10, 2010 2:23 pm
Thanked: 7 times
Followed by:1 members

by ov25 » Mon Sep 27, 2010 9:09 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

imo D

logically completes-- we need to justify here

D: The only way.....to eliminate the interference (just what you need!)

User avatar
MBA Student
Posts: 113
Joined: Sat Dec 05, 2009 10:05 pm
Location: West Lafayette
Thanked: 1 times
GMAT Score:700

by g000fy » Mon Sep 27, 2010 9:23 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

ov25 wrote:imo D

logically completes-- we need to justify here

D: The only way.....to eliminate the interference (just what you need!)
Could you be more elaborate? The argument talks about eliminating intereference from non functioning satellites.

Master | Next Rank: 500 Posts
Posts: 201
Joined: Sat Jul 10, 2010 2:23 pm
Thanked: 7 times
Followed by:1 members

by ov25 » Mon Sep 27, 2010 9:30 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Could you be more elaborate? The argument talks about eliminating intereference from non functioning satellites.
The phrase "logically complete" means the answer has to support 100%.

The only way "take the telescopes high"... says there is no other way you could eliminate interference. This option is so strong that this method elminates all other proposals no matter what they are. including the one in the stimulus

Master | Next Rank: 500 Posts
Posts: 379
Joined: Wed Apr 07, 2010 12:53 am
Location: Chennai,India
Thanked: 3 times

by paddle_sweep » Mon Sep 27, 2010 7:22 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats


User avatar
Master | Next Rank: 500 Posts
Posts: 104
Joined: Sun Mar 18, 2007 9:03 pm
Thanked: 4 times

by vishalj » Mon Sep 27, 2010 8:34 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

I concur with Paddle_Sweep. E is looking more appropriate. This is Fill In The Blank( Assumption) Question.

User avatar
Community Manager
Posts: 991
Joined: Thu Sep 23, 2010 6:19 am
Location: Bangalore, India
Thanked: 146 times
Followed by:24 members

by shovan85 » Mon Sep 27, 2010 10:12 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

The source from where i solved this problem is the OLD SET of GMAT Questions. So I guess the answer is correct. The set says the answer is E.

However,
D says about Interference and Debris
E says about Explosion outcome and reflections

Why to concentrate on eliminating interference as the very first line of the passage says "Although the number of large artificial satellites orbiting the Earth is small compared to the number of small pieces of debris in orbit, the large satellites interfere more seriously with telescope observations because of the strong reflections they produce."



[/b]

Legendary Member
Posts: 1119
Joined: Fri May 07, 2010 8:50 am
Thanked: 29 times
Followed by:3 members

by diebeatsthegmat » Mon Sep 27, 2010 11:40 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

chidcguy wrote:Which of the following most logically completes the argument below?
Although the number of large artificial satellites orbiting the Earth is small compared to the number of small pieces of debris in orbit, the large satellites interfere more seriously with telescope observations because of the strong reflections they produce. Because many of those large satellites have ceased to function, the proposal has recently been made to eliminate interference from nonfunctioning satellites by exploding them in space.
This proposal, however, is ill conceived, since _______.

A. many nonfunctioning satellites remain in orbit for years
B. for satellites that have ceased to function, repairing them while they are in orbit would be prohibitively expensive
C. there are no known previous instances of satellites' having been exploded on purpose
D. the only way to make telescope observations without any interference from debris in orbit is to use telescopes launched into extremely high orbits around the Earth
E. a greatly increased number of small particles in Earth's orbit would result in a blanket of reflections that would make certain valuable telescope observations impossible
the OA is E, if you say the OA is D, maybe you should review....

Newbie | Next Rank: 10 Posts
Posts: 5
Joined: Mon Aug 04, 2014 7:06 am

by divyeshbatra » Sat Mar 14, 2015 11:44 pm

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

The OA is E.