An Automatic Terminal Information Service ATIS can be used by RPA pilots to obtain the following information ?
Exercise > takeoff
The curves that connect the point of equal pressure are the usually drawn at intervals of hPa ?
TAFs Terminal Area Forecasts are prepared up to 4 times a day and can be valid to a maximum of ?
Aerodrome forecasts messages tafs use same abbreviations and codes as Wind direction runway in use. 
Graphic area forecast gfa charts are issued every hours and describe weather conditions below Wind direction runway in use. 
Which of following not a service provided nav canada Wind direction runway in use. 
Choose name that describes very large variations in wind speed which can sometimes be caused a line of thunderstorms Wind direction runway in use. Question 57-8
Which document pilots should consult in order to obtain informations on icing and turbulence conditions Graphic area forecast charts (gfa). Question 57-9
Symbols used in gfa are consistent with those used In a significant weather prognostic chart. Question 57-10
Symbol n°1 indicates In a significant weather prognostic chart. Question 57-11
Symbol n°2 indicates In a significant weather prognostic chart. Question 57-12
Symbol n°3 indicates Freezing rain (fzra). Question 57-13
Symbol n°4 indicates Freezing drizzle (fzdz). Question 57-14
In following example surface wind forecast to be from West (27 ? true) with a speed of 25 kt a peak gust speed of 35 kt. Question 57-15
Symbol n°1 on a significant weather prognostic chart indicates Boundary of an aera of significant cloud.
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