Unless ATC instructs otherwise pilots operating VFR shall select transponder code 1200 when flying at or below feet ASL and code when flying above that altitude ?
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Source: Codebateau examen 31
Pilots shall activate the transponder 'ident' feature ?
Flight through active Class F airspace with the designator CYR ?
With operation of ultra light aeroplanes in active class f airspace identified as cya Participating non participating pilots are equally responsible collision avoidance. 
Class f airspace can be described as Airspace in which air activities must be confined due to nature of their work or associated hazards. 
Terminal airspace dimensions and vhf sector frequencies certain high density traffic airports in canada are shown Airspace in which air activities must be confined due to nature of their work or associated hazards. 
What the document in which you will find information about nav canada's air traffic services Aeronautical information manual (aim). Question 31-8
When confronted with an approaching thunderstorm a take off or landing Should be avoided as a sudden wind shift or low level turbulence could cause a loss of control. Question 31-9
An isolated thunderstorm in close proximity to your aerodrome of intended landing you should Hold over a known point clear of thunderstorm until it well past aerodrome. Question 31-10
The take off thrust blast danger area includes at least that area extending back from tail of a medium size jet transport aeroplane for Hold over a known point clear of thunderstorm until it well past aerodrome. Question 31-11
The ground idle blast danger area extends back from tail of a jumbo jet aeroplane at least Hold over a known point clear of thunderstorm until it well past aerodrome. Question 31-12
The ground idle blast danger area extends back from tail of a medium size jet aeroplane at least Hold over a known point clear of thunderstorm until it well past aerodrome. Question 31-13
The ground idle blast danger area extends back from tail of an executive jet aeroplane for Hold over a known point clear of thunderstorm until it well past aerodrome. Question 31-14
A 45 kt blast area can be expected behind propellers of a large turbo prop aeroplane during taxi Hold over a known point clear of thunderstorm until it well past aerodrome. Question 31-15
Effective collision avoidance scanning technique requires A series of regularly spaced eye movements focusing at least one second on each block area.
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