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Question

Difficulty: MediumIdentifying Implied Meanings

Passage:
When conducting aerial wildfire surveillance, spotter pilots are instructed to log coordinates based on infrared thermal hotspots rather than visible smoke plumes during peak midday patrols. Intense solar heating of barren rock formations frequently creates shimmering optical illusions that closely resemble thin smoke columns from high altitudes. In contrast, onboard thermal imaging sensors register actual combustion signatures regardless of ambient ground reflection or midday glare.

Statement:
Based on the passage, it can be reasonably inferred that relying on visual sightings of smoke during midday patrols carries a higher risk of false alarms than relying on thermal imaging data.

Answer: Answer

Answer

True
The correct evaluation is True because the passage notes that midday heat produces optical illusions that look like smoke from the air, while thermal sensors accurately detect real combustion. This directly supports the unstated conclusion that visual monitoring during midday is subject to a higher rate of false alarms.

Step-by-Step Solution

1
Analyze the passage for details comparing visual smoke observations and thermal imaging during midday flights.
The text states that midday solar heat creates optical illusions on rocks resembling smoke, whereas thermal imaging detects real combustion despite glare.
Establishing what the text explicitly says about each detection method is the first step in uncovering implied meanings.
2
Deduce the unstated practical implication of optical illusions mimicking smoke.
If pilots rely on visual sightings when illusions look like smoke, they are more likely to mistakenly report nonexistent fires (false alarms).
Connecting the presence of visual illusions to the operational risk of false alarms bridges explicit facts to the logical inference.
3
Evaluate whether the statement accurately reflects this deduced implication.
The statement correctly asserts that visual sightings carry a greater risk of false alarms than thermal imaging data.
Comparing the statement directly to the supported inference verifies that the statement is true.

Key Concept

Identifying Implied Meanings
Estimated Time:1m 0s
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Identifying Implied Meanings

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