Transfer molding is a process ***

[Everything OR Nothing]

Transfer molding is a process in which polymer resins are superheated, compressed in a charger, and then they are injected into a closed mold cavity; it is used to produce plastic moldings with variable wall thicknesses, as well as fine surface detail, such as the exterior panels of buses and trolleys.
1.molding is a process in which polymer resins are superheated, compressed in a charger, and then they are injected into a closed mold cavity; it is used to produce plastic moldings with variable wall thicknesses, as well as fine surface detail, such as the exterior panels of buses and trolleys
2.molding"”a process in which superheated polymer resins are compressed in a charger, then injecting into a closed mold cavity"”is used to produce plastic moldings, such as the exterior panels of buses and trolleys with variable wall thicknesses, as well as fine surface detail
3.molding"”a process in which superheated polymer resins compressed in a charger are then injected into a closed mold cavity"”it is used to produce plastic moldings, such as the exterior panels of buses and trolleys, with walls of variable thickness and surfaces of fine dail
4.molding, a process in which superheated polymer resins are compressed in a charger and then injected into a closed mold cavity, is used to produce plastic moldings, such as the exterior panels of buses and trolleys, with variable wall thicknesses and fine surface dail
5.molding is a process involving the compression of superheated polymer resins in a charger, and then they are injected into a closed mold cavity; this process, which is used to produce plastic moldings with variable wall thicknesses and fine surface detail, such as the exterior panels of buses and trolleys


found this question in one of the MGMAT CAT.
I marked it as A but OA says D.
How can we be so sure (as explained) that "with variable wall thicknesses and fine surface detail" should modify (describe quality of) the panels of buses and trolleys rather than the plastic molding itself (as in option A)

[RonPurewal]

How can we be so sure (as explained) that "with variable wall thicknesses and fine surface detail" should modify (describe quality of) the panels of buses and trolleys rather than the plastic molding itself (as in option A)

That modifier does describe the plastic moldings.

For a construction similar to the correct answer here, check out #34 in the verbal OG supplement:
...visible equipment, such as lights, that must be turned on and off...
Here, "... that must be turned on and off" describes visible equipment.
"Such as lights" is tossed between those two parts, largely because there's nowhere else to put it.

[RonPurewal]

As for choice (A), the easiest problem to see is the lack of parallelism.
superheated, compressed, ... and then they are heated

You shouldn't have too much trouble recognizing the non-parallelism here. If you don't immediately see it, go back and study the basics of parallelism.

There is a modifier issue, but it doesn't involve the modifier you mentioned. The issue involves "such as the exterior panels...", which is not placed in a sensible location.

[Everything OR Nothing]

Thanks Ron. I can accept that choice A has Bad parallelism.
arrrrr. I mistyped my doubt.

Transfer molding is a process in which polymer resins are superheated, compressed in a charger, and then they are injected into a closed mold cavity; it is used to produce plastic moldings with variable wall thicknesses, as well as fine surface detail, such as the exterior panels of buses and trolleys.

If I tweak the choice 1 as below:

A.molding is a process in which polymer resins are superheated, compressed in a charger, and then injected into a closed mold cavity; this process is used to produce plastic moldings with (or having) variable wall thicknesses and fine surface detail, such as the exterior panels of buses and trolleys

D.molding, a process in which superheated polymer resins are compressed in a charger and then injected into a closed mold cavity, is used to produce plastic moldings, such as the exterior panels of buses and trolleys, with variable wall thicknesses and fine surface detail

Somehow to me ,in option D ,with..... sounds like depicting character of Panels and trolleys not moldings.

is there any difference between ,with and simple with (as in option A) ?

[RonPurewal]

If I tweak the choice 1 as below:

Don't "tweak" GMAT SC questions.
Don't do it.
It's hard enough already to deal with the five choices that are actually there!

More importantly, when students "tweak" the sentences, the result is almost always wrong -- but usually for a reason that GMAC doesn't actually test. (The aspects of the English language that aren't tested in SC far outnumber the ones that are.)
So there's this awkward situation, in which the necessary response is "No, that's wrong, but you don't have to know why."

Your new version of choice (A) still has the same problematic placement of the same modifier.

[RonPurewal]

Somehow to me ,in option D ,with..... sounds like depicting character of Panels and trolleys not moldings.

OK, fine, lots of correct things "sound weird" to people. (By the way, I hope that you don't actually mean literal sound -- as in what your ears hear -- when you write "sound". If you are listening to the literal sound of the sentences, then SC is a lost cause.)

If that happens, don't waste your time questioning the correct answers. If you disagree with the correct answers, then, guess what -- they're right, and you're wrong.

Instead, figure out what you need to update about your understanding of the language.

Again, check out #34 in the OG verbal supplement, in which "such as xxxx" is thrown into the middle of another construction in exactly the same way as it is here.

[RonPurewal]

is there any difference between ,with and simple with (as in option A) ?

False distinction.
The comma has nothing to do with "with". Both commas belong to the modifier that comes between them ("such as the exterior panels of buses and trolleys"). If you remove that modifier, both commas disappear along with it.

The same thing happens if you take "such as lights" out of the correct answer in verbal supplement #34.

[Everything OR Nothing]

Thanks alot for your prompt replies. You are my idol in the game called GMAT:)

well still I have one doubt :)


If I want to use such as to give example of only the Moldings that have variable thickness and have fine surface details NOT the moldings in general, how and where can I use such as in this sentence?

[jlucero]

Thanks alot for your prompt replies. You are my idol in the game called GMAT:)

well still I have one doubt :)


If I want to use such as to give example of only the Moldings that have variable thickness and have fine surface details NOT the moldings in general, how and where can I use such as in this sentence?

The same way you expressed your thought about which molding you wanted to specifically refer to:

If I want to use such as to give example of only the Moldings that have variable thickness and have fine surface details NOT the moldings in general, how and where can I use such as in this sentence?

Blah blah blah, such as the moldings that have variable thickness and have fine surface details, blah blah.

[rustom.hakimiyan]

How can we be so sure (as explained) that "with variable wall thicknesses and fine surface detail" should modify (describe quality of) the panels of buses and trolleys rather than the plastic molding itself (as in option A)

That modifier does describe the plastic moldings.

For a construction similar to the correct answer here, check out #34 in the verbal OG supplement:
...visible equipment, such as lights, that must be turned on and off...
Here, "... that must be turned on and off" describes visible equipment.
"Such as lights" is tossed between those two parts, largely because there's nowhere else to put it.

Hi Ron,

I realize that there are a few things wrong with C but i'm specifically interested in the parallelism part --

3.molding"”a process in which superheated polymer resins compressed in a charger are then injected into a closed mold cavity"”it is used to produce plastic moldings, such as the exterior panels of buses and trolleys, with walls of variable thickness and surfaces of fine detail.

Is the part above supposed to be in parallel and is it? compressed vs. then injected? Are we supposed to count the "then" in the parallel structure? Doesn't the "then" throw it off?


4.molding, a process in which superheated polymer resins are compressed in a charger and then injected into a closed mold cavity, is used to produce plastic moldings, such as the exterior panels of buses and trolleys, with variable wall thicknesses and fine surface dail

Same question as above - obviously it's correct b/c it's the OG choice but am I supposed to even look for parallelism here?Doesn't the "then" throw it off?

Thanks!

[tim]

You only look for parallelism when there is a parallel marker. The "then" in this case is not a parallel marker, but the "and" is.

[rustom.hakimiyan]

You only look for parallelism when there is a parallel marker. The "then" in this case is not a parallel marker, but the "and" is.

Understood, but does the "then" not affect parallelism adversely? Meaning, in D:

"4.molding, a process in which superheated polymer resins are compressed in a charger and then injected into a closed mold cavity,"

Does the "then" break parallelism here?

[tim]

No it doesn't. The "and" parallel marker can be followed by certain extraneous words that you should probably just consider part of the parallel marker. Examples would include "and then" or "and also".

[rustom.hakimiyan]

No it doesn't. The "and" parallel marker can be followed by certain extraneous words that you should probably just consider part of the parallel marker. Examples would include "and then" or "and also".

Great. That helps a lot. I would rule out a lot of answers when I saw "and then" -- but this helps. Thanks!

[tim]

Glad to hear it!