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Difficulty: EasyIdentifying Implied Meanings

During sea trials, a patrol vessel's engine log recorded a steady drop in exhaust temperature whenever the auxiliary cooling blower was engaged. Under standard cruising conditions, the diesel engine operates at peak fuel efficiency only within a narrow, elevated temperature range. When the auxiliary cooling blower remained running for extended periods, fuel consumption increased noticeably to maintain propulsion speed.

Statement: Based on the passage, it is implied that the auxiliary cooling blower increases fuel consumption because it cools the engine below its optimal operating temperature.

Answer: Answer

Answer

True
The passage establishes that the engine runs most efficiently at an elevated temperature and that the blower lowers temperatures while increasing fuel consumption. Combining these facts makes it logically necessary that the cooling action reduces efficiency, making the statement true.

Step-by-Step Solution

1
Identify the stated effect of the auxiliary blower on engine conditions.
The auxiliary blower causes a steady drop in engine exhaust temperature.
This establishes the direct physical effect of operating the blower.
2
Identify the condition required for peak fuel efficiency.
The engine requires a narrow, elevated temperature range for peak efficiency.
This provides the benchmark needed to evaluate engine performance.
3
Synthesize the cause-and-effect relationship to evaluate the implied meaning.
Because the blower lowers the temperature away from the required elevated range, efficiency drops and more fuel is burned.
This confirms that the statement accurately reflects the unstated implication of the text.

Key Concept

Identifying Implied Meanings
Estimated Time:45s
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Identifying Implied Meanings

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