Questions and Answers
What happens to indicated airspeed (IAS) and takeoff distance as density altitude increases?
If a NOTAM indicates that a VOR is unusable from 1900Z, can it still be used if departure is at 1800Z?
What is the accuracy of RAIM for enroute/terminal/approach?
Which factor is associated with thunderstorm formation?
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In a QS stationary front, what is the direction of the wind?
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What does the line of dashes on an upper chart represent?
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What does it mean when a line connects all points with the same altitude?
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How much of the sky is the cloud in the metar/taf covering?
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How does temperature change if flying westbound to cross a trowal?
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If the same air pressure gradient exists, will the wind be stronger in high-pressure systems or low pressure systems?
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What will be the result when saturated air is cooled and condensation has already happened?
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Which of the following will initially change when subsiding air has already saturated?
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Define MLAT
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Study Notes
Cloud and Density Altitude
- AC 5 is the answer related to a cloud query.
- Airspeed Indicator (IAS) remains constant during takeoff as density altitude increases; however, True Airspeed (TAS) increases and takeoff distance lengthens.
Contour Lines
- A line connecting points of equal altitude is known as a contour line.
NOTAM and VOR Usability
- A VOR becoming unusable at a specific time does not affect its usability prior. For example, a T/O at 1800Z allows usage until 1900Z.
RAIM Accuracy
- Required Receiver Autonomous Integrity Monitoring (RAIM) accuracies for different phases:
- Enroute: 2 miles
- Terminal: 1 mile
- Approach: 0.3 miles
Thunderstorm Formation
- Key factors for thunderstorm development include lifting forces, adequate moisture, and a steep lapse rate.
Wind Direction in Stationary Fronts
- Wind direction at a quasi-stationary (QS) front runs parallel to the front itself.
Temperature Changes Across Trowal
- While flying westbound to cross a trough of low pressure (trowal), temperature initially increases before starting to decrease.
Wind Gradients and Pressure Systems
- Under the same air pressure gradient, winds are stronger in high-pressure systems compared to low-pressure systems.
Saturated Air Dynamics
- In saturated air, when cooled, condensation occurs; the dew point decreases as a result.
Subiding Air and Condensation
- When air that is initially saturated begins to subside, condensation is the primary initial change.
MLAT Definition
- MLAT stands for Multilateration, a method involving the use of transponder signals for aircraft location determination.
Isotach Functionality
- The line of dashes that appears on upper weather charts represents isotachs, indicating areas of equal wind speed.
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Description
Test your knowledge on key aviation concepts including cloud formations and navigation parameters. This quiz covers topics such as density altitude, IAS, T/O distances, and NOTAM regulations. Perfect for aspiring pilots and aviation enthusiasts!
