ATSC 231 BLOCK 2 COMPREHENSIVE EXAM
2026 SOLVED QUESTIONS GRADED A+
◉ identify the types of analysis that are performed on a Surface
AnalysisChart. Answer: -Frontal
- Isobaric
◉ Isobar. Answer: Lines of constant pressure
◉ Trof. Answer: elongated area of low pressure
◉ Ridge. Answer: an elongated area of high pressure
◉ Isobar relationship to PGF. Answer: closer the spacing of isobars, the
stronger the pressure gradient force. stronger the pressure gradient force,
the stronger wind.
◉ What causes wind to blow. Answer: Wind goes from high pressure to
low pressure
◉ How does wind direction relate to pressure. Answer: When facing
along an isobar or contour with lower pressure on your left, the wind
will be blowing at your face
,◉ displays available at the Aviation Weather Center's ADDS METARs
webpage. Answer: Interactive and static
◉ plot options to display the desired information using the METAR
interactive display. Answer: Temp (F), Altimeter (inches HG), visibility
(decimal), wind (knots), sky cover, weather, category, radar, or tafs
◉ when surface visibilities are rounded on a station model. Answer: ⅜
and below= .3
½= .5
¾=.8
1.5&1.75=2
2.5&3=3
◉ sustained and gust wind values from a station model. Answer: Gusts
are in red on wind barb
◉ ceiling from a station model. Answer: 100s ft AGL
◉ LIFR station model. Answer: Magenta, < 500 ft AGL and/or < 1 sm
◉ IFR station model. Answer: Red, ≥ 500 ft AGL but < 1,000 ft AGL
and/or ≥ 1 sm but < 3 sm
, ◉ MVFR station model. Answer: blue, 1,000 to 3,000 ft AGL and/or 3
to 5 sm
◉ VFR station model. Answer: Green, > 3,000 ft AGL and > 5 sm
◉ identify how often the static display is updated. Answer: Every 5 mins
◉ describe the concept of isobaric pressure surfaces. Answer:
connecting points of equal atmospheric pressure at a specific level,
regardless of geographic location
◉ 925mb. Answer: 2,400ft MSL
◉ 850mb. Answer: 5,000ft MSL
◉ 700mb. Answer: 10,000ft MSL
◉ 500mb. Answer: 18,000ft
◉ 300mb. Answer: 30,000ft
◉ 250mb. Answer: 34,000ft
2026 SOLVED QUESTIONS GRADED A+
◉ identify the types of analysis that are performed on a Surface
AnalysisChart. Answer: -Frontal
- Isobaric
◉ Isobar. Answer: Lines of constant pressure
◉ Trof. Answer: elongated area of low pressure
◉ Ridge. Answer: an elongated area of high pressure
◉ Isobar relationship to PGF. Answer: closer the spacing of isobars, the
stronger the pressure gradient force. stronger the pressure gradient force,
the stronger wind.
◉ What causes wind to blow. Answer: Wind goes from high pressure to
low pressure
◉ How does wind direction relate to pressure. Answer: When facing
along an isobar or contour with lower pressure on your left, the wind
will be blowing at your face
,◉ displays available at the Aviation Weather Center's ADDS METARs
webpage. Answer: Interactive and static
◉ plot options to display the desired information using the METAR
interactive display. Answer: Temp (F), Altimeter (inches HG), visibility
(decimal), wind (knots), sky cover, weather, category, radar, or tafs
◉ when surface visibilities are rounded on a station model. Answer: ⅜
and below= .3
½= .5
¾=.8
1.5&1.75=2
2.5&3=3
◉ sustained and gust wind values from a station model. Answer: Gusts
are in red on wind barb
◉ ceiling from a station model. Answer: 100s ft AGL
◉ LIFR station model. Answer: Magenta, < 500 ft AGL and/or < 1 sm
◉ IFR station model. Answer: Red, ≥ 500 ft AGL but < 1,000 ft AGL
and/or ≥ 1 sm but < 3 sm
, ◉ MVFR station model. Answer: blue, 1,000 to 3,000 ft AGL and/or 3
to 5 sm
◉ VFR station model. Answer: Green, > 3,000 ft AGL and > 5 sm
◉ identify how often the static display is updated. Answer: Every 5 mins
◉ describe the concept of isobaric pressure surfaces. Answer:
connecting points of equal atmospheric pressure at a specific level,
regardless of geographic location
◉ 925mb. Answer: 2,400ft MSL
◉ 850mb. Answer: 5,000ft MSL
◉ 700mb. Answer: 10,000ft MSL
◉ 500mb. Answer: 18,000ft
◉ 300mb. Answer: 30,000ft
◉ 250mb. Answer: 34,000ft
