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In a METAR, the group "A2992" represents what?
Choices
✓ The altimeter setting of 29.92 inches of mercurycorrect
The A prefix denotes the altimeter setting in inches of mercury; A2992 is 29.92.
The visibility in statute miles
Visibility is reported separately and is not prefixed with A.
The temperature in Celsius
Temperature and dewpoint appear as a slash-separated Celsius pair, not after an A.
The wind speed in knots
Wind is coded as direction and speed early in the report, not with an A.
Why
In a METAR the altimeter setting is prefixed with the letter A and given in inches of mercury, so A2992 means 29.92 inHg.
FAA source: AIM 7-1 / Aviation Weather Handbook FAA-H-8083-28browse the reference library →
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.