Read the passage below and then choose the best answer to each question. Answer the questions on the basis of what is stated or implied in the passage.
Passage
Today's ubiquitous red-yellow-green electric traffic light, familiar to drivers worldwide, had its origins in train signals from the 1800s. These early signals all used red to signify "stop," but the choice and arrangement of the other two colors would surprise today's drivers: green was the color for "caution," and white was the color for "go." However, white proved to be a poor choice, because the red and green lights train engineers saw were produced by red and green filters covering white light bulbs (the "go" light had a clear filter). If a filter was broken or missing, the signal would appear as white and engineers might mistake "stop" or "caution" for "go," especially at night.
What does the passage suggest about the light bulbs used in the first train signaling systems?
- A. They were very fragile.
- B. They were all the same color.
- C. They were only illuminated at night.
- D. They were also used to signal automobile drivers.
Correct Answer & Rationale
Correct Answer: B
The passage indicates that the light bulbs in the first train signaling systems were designed to emit a specific color to convey signals, suggesting uniformity in color for clarity and safety. Option A is incorrect as the passage does not mention the fragility of the bulbs. Option C is misleading; while the bulbs may have been primarily used at night, the passage does not explicitly state that they were only illuminated then. Option D is also incorrect; the passage focuses on train signaling without reference to their use for automobile drivers. Thus, the emphasis on color highlights the importance of consistent signaling in train operations.
The passage indicates that the light bulbs in the first train signaling systems were designed to emit a specific color to convey signals, suggesting uniformity in color for clarity and safety. Option A is incorrect as the passage does not mention the fragility of the bulbs. Option C is misleading; while the bulbs may have been primarily used at night, the passage does not explicitly state that they were only illuminated then. Option D is also incorrect; the passage focuses on train signaling without reference to their use for automobile drivers. Thus, the emphasis on color highlights the importance of consistent signaling in train operations.
Other Related Questions
Why does the author place quotation marks around the word "patriotic" (sentence 2)?
- A. To acknowledge that Wrigley's gum, while associated with a patriotic gesture, is not actually patriotic
- B. To emphasize that Wrigley's gum helped American soldiers
- C. To show that American soldiers used the word patriotic to describe Wrigley's gum
- D. To indicate that the Wrigley Company changed the name of the product to include the word patriotic
Correct Answer & Rationale
Correct Answer: A
Quotation marks around the word "patriotic" suggest that the term is being used in a non-literal or ironic sense, indicating skepticism about its true meaning. Option A accurately reflects this by acknowledging that while Wrigley's gum is linked to a patriotic gesture, it may not genuinely embody patriotism. Option B incorrectly assumes that the emphasis is on the gum's supportive role for soldiers rather than questioning the term itself. Option C misinterprets the use of quotation marks, suggesting that soldiers coined the term, which is not the case. Option D mistakenly implies a product name change, which is irrelevant to the author's intent in using quotation marks.
Quotation marks around the word "patriotic" suggest that the term is being used in a non-literal or ironic sense, indicating skepticism about its true meaning. Option A accurately reflects this by acknowledging that while Wrigley's gum is linked to a patriotic gesture, it may not genuinely embody patriotism. Option B incorrectly assumes that the emphasis is on the gum's supportive role for soldiers rather than questioning the term itself. Option C misinterprets the use of quotation marks, suggesting that soldiers coined the term, which is not the case. Option D mistakenly implies a product name change, which is irrelevant to the author's intent in using quotation marks.
The author of the passage does which of the following?
- A. Relates a personal anecdote
- B. Provides statistical data
- C. Quotes a named authority
- D. Challenges an official view
Correct Answer & Rationale
Correct Answer: C
The author quotes a named authority to lend credibility to their argument, enhancing the passage's persuasive impact. This approach allows the reader to see the author's position supported by established expertise. Option A is incorrect as there is no personal anecdote shared; the focus remains on authoritative sources. Option B is not applicable since the passage lacks statistical data, relying instead on qualitative support. Option D is also wrong; the author does not challenge an official view but rather reinforces their argument through the cited authority, maintaining a respectful stance towards existing perspectives.
The author quotes a named authority to lend credibility to their argument, enhancing the passage's persuasive impact. This approach allows the reader to see the author's position supported by established expertise. Option A is incorrect as there is no personal anecdote shared; the focus remains on authoritative sources. Option B is not applicable since the passage lacks statistical data, relying instead on qualitative support. Option D is also wrong; the author does not challenge an official view but rather reinforces their argument through the cited authority, maintaining a respectful stance towards existing perspectives.
The historic town library is just passed the intersection of Main Street and the more residential Frederick Street.
- A. passed
- B. pass
- C. past
- D. passing
Correct Answer & Rationale
Correct Answer: C
In this context, "past" is the appropriate choice as it refers to a location beyond a point—in this case, the intersection. - **A: passed** is the past tense of "pass," which does not fit the sentence's need for a preposition indicating location. - **B: pass** is the base form of the verb and does not convey the intended meaning of being beyond the intersection. - **D: passing** suggests an ongoing action, which is not suitable here as the sentence describes a static location relative to the intersection. Thus, "past" effectively communicates that the library is located beyond the intersection.
In this context, "past" is the appropriate choice as it refers to a location beyond a point—in this case, the intersection. - **A: passed** is the past tense of "pass," which does not fit the sentence's need for a preposition indicating location. - **B: pass** is the base form of the verb and does not convey the intended meaning of being beyond the intersection. - **D: passing** suggests an ongoing action, which is not suitable here as the sentence describes a static location relative to the intersection. Thus, "past" effectively communicates that the library is located beyond the intersection.
Our offices are located in an old building on the outskirts of campus that was formerly, a tavern.
- A. formerly
- B. formally
- C. formidably
- D. formality
Correct Answer & Rationale
Correct Answer: A
The word "formerly" accurately indicates that the building was previously a tavern, highlighting its past use. Option B, "formally," refers to official or ceremonial contexts, which does not fit the intended meaning. Option C, "formidably," suggests something impressive or intimidating, irrelevant in this context. Lastly, option D, "formality," denotes an official procedure or requirement, which is not applicable here. Thus, "formerly" is the only choice that correctly conveys the idea of a past state, making it the appropriate selection.
The word "formerly" accurately indicates that the building was previously a tavern, highlighting its past use. Option B, "formally," refers to official or ceremonial contexts, which does not fit the intended meaning. Option C, "formidably," suggests something impressive or intimidating, irrelevant in this context. Lastly, option D, "formality," denotes an official procedure or requirement, which is not applicable here. Thus, "formerly" is the only choice that correctly conveys the idea of a past state, making it the appropriate selection.