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IFR (Instrument Rating) Airman Knowledge Test Questions 2007
(Refer to figure 9.) Using the DAY 2 CONVECTIVE OUTLOOK, what type of thunderstorms, if any, may be encountered on a flight from Montana to central California?
A) Moderate risk area, surrounded by a slight risk area, of possible severe turbulence.
(Refer to figure 7.) What weather conditions are depicted within the area indicated by arrow B?
A) Light to moderate turbulence at and above 37,000 feet MSL.
B) Moderate turbulence from below 24,000 feet MSL to 37,000 feet MSL.
C) Moderate to severe CAT is forecast to exist at FL 370.
(Refer to figure 18, SFC PROG) A planned low altitude flight from northern Florida to southern Florida at 00Z is likely to encounter
A) intermittent rain or rain showers, moderate turbulence, and freezing temperatures above 8,000 feet.
B) showery precipitation, thunderstorms/rain showers covering half or more of the area.
C) showery precipitation covering less than half the area, no turbulence below 18,000 feet, and freezing temperatures above 12,000 feet.
(Refer to figure 5.) What is the meaning of the symbol depicted as used on the U.S. Low-Level Significant Weather Prog Chart?
A) Showery precipitation (e.g. rain showers) embedded in an area of continuous rain covering half or more of the area.
B) Continuous precipitation (e.g. rain) covering half or more of the area.
C) Showery precipitation (e.g. thunderstorms/rain showers) covering half or more of the area.
The Low-Level Significant Weather Prognostic Chart depicts weather conditions
A) that are forecast to exist at a valid time shown on the chart.
B) as they existed at the time the chart was prepared.
C) that existed at the time shown on the chart which is about 3 hours before the chart is received.
What important information is provided by the Radar Summary Chart that is not shown on other weather charts?
A) Lines and cells of hazardous thunderstorms.
B) Types of precipitation.
C) Areas of cloud cover and icing levels within the clouds.
The Surface Analysis Chart depicts
A) actual pressure systems, frontal locations, cloud tops, and precipitation at the time shown on the chart.
B) frontal locations and expected movement, pressure centers, cloud coverage, and obstructions to vision at the time of chart transmission.
C) actual frontal positions, pressure patterns, temperature, dew point, wind, weather, and obstructions to vision at the valid time of the chart.
Which are characteristics of an unstable cold air mass moving over a warm surface?
A) Cumuliform clouds, turbulence, and poor visibility.
B) Cumuliform clouds, turbulence, and good visibility.
C) Stratiform clouds, smooth air, and poor visibility.
An air mass is a body of air that
A) has similar cloud formations associated with it.
B) creates a wind shift as it moves across the Earth's surface.
C) covers an extensive area and has fairly uniform properties of temperature and moisture.
What determines the structure or type of clouds which form as a result of air being forced to ascend?
A) The method by which the air is lifted.
B) The stability of the air before lifting occurs.
C) The amount of condensation nuclei present after lifting occurs.
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