PrepTest 94+, Section 2, Question 17
To measure a small boat hull accurately, it is necessary to level the hull so that a baseline can be established. This does not require sophisticated tools, but it does require a leveling tool called a "line level." When scientists discovered a small ninth-century boat, they wanted to record the dimensions of its hull accurately. None of the scientists, however, had any experience measuring hulls. Because of this they were not sure they had leveled the hull before establishing a baseline.
To measure a small boat hull accurately, it is necessary to level the hull so that a baseline can be established. This does not require sophisticated tools, but it does require a leveling tool called a "line level." When scientists discovered a small ninth-century boat, they wanted to record the dimensions of its hull accurately. None of the scientists, however, had any experience measuring hulls. Because of this they were not sure they had leveled the hull before establishing a baseline.
To measure a small boat hull accurately, it is necessary to level the hull so that a baseline can be established. This does not require sophisticated tools, but it does require a leveling tool called a "line level." When scientists discovered a small ninth-century boat, they wanted to record the dimensions of its hull accurately. None of the scientists, however, had any experience measuring hulls. Because of this they were not sure they had leveled the hull before establishing a baseline.
To measure a small boat hull accurately, it is necessary to level the hull so that a baseline can be established. This does not require sophisticated tools, but it does require a leveling tool called a "line level." When scientists discovered a small ninth-century boat, they wanted to record the dimensions of its hull accurately. None of the scientists, however, had any experience measuring hulls. Because of this they were not sure they had leveled the hull before establishing a baseline.
If the statements above are true, then which one of the following must also be true?
The scientists did not accurately measure the hull's dimensions because they had no experience measuring hulls.
The scientists accurately determined the hull's dimensions, provided that they leveled the hull.
If the scientists did not accurately determine the hull's dimensions, it was because they did not have a line level.
The scientists were able to accurately record the hull's dimensions only if they used a line level.
If the scientists had measured the hull's dimensions accurately, then at least one of them would have had experience measuring hulls.
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