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18 Feb 2022, 00:48
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
67% (01:28) correct
33%
(01:35)
wrong
based on 301
sessions
History
Date
Time
Result
Not Attempted Yet
An automobile’s transmission allows for both wheel rotation rates lower than the engine and for higher torque at lower speeds.
A) for both wheel rotation rates lower than the engine and for higher torque
B) for both wheel rotation rates that are lower than those of the engine and for higher torque
C) both for a wheel rotation rate lower than that of the engine and for higher torque
D) both the wheels to turn more slowly than that of the engine and the torque to be higher
E) both a rate of wheel rotation lower than the engine and higher torques
18 Feb 2022, 00:50
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OFFICIAL EXPLANATION
• Split #1: idiom
The verb “allow,” by itself, means to give permission.
The subject could be a human being (or a governmental body) who is in position to grant permission.
→ The teacher allows students to chew gum in class.
→ The law does not allow car drivers to talk on the phone.
The subject also could be something inanimate, perhaps mechanical: here, it would not be about “permission,” but about accommodating a possible range, as of motion, within the mechanical tolerance of the construction.
In this construction, we also need the infinitive: allow X to do Y. This is the structure that choice (D) has.
The idiomatic structure “allow for” is used only for inanimate objects, primarily mechanical objects: it also indicates a possible range.
→ Amphibious vehicles allow for travel on both land and water.
→ The human shoulder joint allows for 360° rotation in a vertical plane.
In this SC question, we are discussing an “automobile’s transmission,” an inanimate mechanical object.
We could use this second idiom, “allow for.” Choice (A) & (B) & (C) make this choice.
Choice (E) doesn’t follow either pattern correctly and is idiomatically incorrect.
Furthermore, option E illogically compares a rate of wheel rotation to an engine.
Eliminate E.
• Split #2: the Inside/Outside rule
One important rule about parallelism is the Once Outside, Twice Inside rule.
This rule comes into effect when we have correlated conjunctions—that is, a coupled pair of conjunctions marking the two halves of the parallelism: examples include “both X and Y,” “neither X nor Y,” “not X but Y,” and “not only X but also Y.”
When any of these pairs are used, the parallelism has a clear start at the beginning of the first word.
Anything that is within the “both X and Y” structure is “inside,” and anything that comes before or after it is “outside.”
Now, suppose a preposition applies to words in both branches of the parallelism. In this example we will use the preposition "to."
We have two options:
Once Outside: to both X and Y
Twice Inside: both to X and to Y
In this question, we could have
Once Outside: allow for both X and Y
Twice Inside: allow both for X and for Y
Choices (A) & (B) have the mistake pattern, namely, once-outside-and-once-inside.
Both of those options are incorrect.
Eliminate A and B.
• Split #3 -
Choice (D) has an incorrect comparison: “allows … the wheels to turn more slowly than that of the engine.”
The antecedent of the pronoun “that” is not clear.
We do not have ambiguity. We have The Case of the Missing Antecedent.
This choice is incorrect.
Eliminate D.
The only possible choice is (C).
COMMENTS
I deal with the "once outside, twice inside" rule in quite a few posts—I think that this post, here, might prove helpful.
(Don't worry: If I am sending you to an official question, I give warning.)
That question is not official.
But it is very good practice for parallelism and the rule I just mentioned.
If you can understand my post, you should be in good shape. (Just be sure to try the question first. You might need to read the explanation a few times. 10-15 minutes of your life.)
PrachiiPrasaad , welcome to SC Butler.
I am glad to see evidence of good, hard work in the posts below. Nicely done!
Quote:
MAGOOSH Official Explanation
• Split #1: idiom
The verb “allow,” by itself, means to give permission.
The subject could be a human being (or a governmental body) who is in position to grant permission.
→ The teacher allows students to chew gum in class.
→ The law does not allow car drivers to talk on the phone.
The subject also could be something inanimate, perhaps mechanical: here, it would not be about “permission,” but about accommodating a possible range, as of motion, within the mechanical tolerance of the construction.
In this construction, we also need the infinitive: allow X to do Y. This is the structure that choice (D) has.
The idiomatic structure “allow for” is used only for inanimate objects, primarily mechanical objects: it also indicates a possible range.
→ Amphibious vehicles allow for travel on both land and water.
→ The human shoulder joint allows for 360° rotation in a vertical plane.
In this SC question, we are discussing an “automobile’s transmission,” an inanimate mechanical object.
We could use this second idiom, “allow for.” Choice (A) & (B) & (C) make this choice.
Choice (E) doesn’t follow either pattern correctly and is idiomatically incorrect.
Furthermore, option E illogically compares a rate of wheel rotation to an engine.
Eliminate E.
• Split #2: the Inside/Outside rule
One important rule about parallelism is the Once Outside, Twice Inside rule.
This rule comes into effect when we have correlated conjunctions—that is, a coupled pair of conjunctions marking the two halves of the parallelism: examples include “both X and Y,” “neither X nor Y,” “not X but Y,” and “not only X but also Y.”
When any of these pairs are used, the parallelism has a clear start at the beginning of the first word.
Anything that is within the “both X and Y” structure is “inside,” and anything that comes before or after it is “outside.”
Now, suppose a preposition applies to words in both branches of the parallelism. In this example we will use the preposition "to."
We have two options:
Once Outside: to both X and Y
Twice Inside: both to X and to Y
In this question, we could have
Once Outside: allow for both X and Y
Twice Inside: allow both for X and for Y
Choices (A) & (B) have the mistake pattern, namely, once-outside-and-once-inside.
Both of those options are incorrect.
Eliminate A and B.
• Split #3 -
Choice (D) has an incorrect comparison: “allows … the wheels to turn more slowly than that of the engine.”
The antecedent of the pronoun “that” is not clear.
We do not have ambiguity. We have The Case of the Missing Antecedent.
This choice is incorrect.
Eliminate D.
The only possible choice is (C).
COMMENTS
I deal with the "once outside, twice inside" rule in quite a few posts—I think that this post, here, might prove helpful.
(Don't worry: If I am sending you to an official question, I give warning.)
That question is not official.
But it is very good practice for parallelism and the rule I just mentioned.
If you can understand my post, you should be in good shape. (Just be sure to try the question first. You might need to read the explanation a few times. 10-15 minutes of your life.)
PrachiiPrasaad , welcome to SC Butler.
I am glad to see evidence of good, hard work in the posts below. Nicely done!
18 Feb 2022, 01:04
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Bookmarks
My answer is (C). It took me 01:23.
For both X and Y, it is imperative that X and Y are parallel.
(A) "both wheel rotation rates" is not parallel with "and for higher torque". (Note the extra "for" after "and".)
(B) See above.
(C) "both for" and "and for" are parallel. Keep for now.
(D) "allow the wheels to turn more slowly than that of the engine" should be "allow the wheels to turn more slowly than the engine"
(E) "a rate of wheel rotation lower than the engine" incorrectly compare "a rate" with "the engine".
For both X and Y, it is imperative that X and Y are parallel.
(A) "both wheel rotation rates" is not parallel with "and for higher torque". (Note the extra "for" after "and".)
(B) See above.
(C) "both for" and "and for" are parallel. Keep for now.
(D) "allow the wheels to turn more slowly than that of the engine" should be "allow the wheels to turn more slowly than the engine"
(E) "a rate of wheel rotation lower than the engine" incorrectly compare "a rate" with "the engine".
