Exam Questions and CORRECT Answers
TAF (Aerodrome forecast) are valid for - CORRECT ANSWER - A wide range of times,
in London it's 24 hours
TAF's are issued - CORRECT ANSWER - Four times daily
30 hour TAFS are issued for - CORRECT ANSWER - Designated ICAO destinations and
alternate aerodromes
FM (TAF) meaning - CORRECT ANSWER - Permanent changes to forecast occurs
rapidly
BECMG aerodrome forecast - CORRECT ANSWER - Permanent change is expected to
occur over 1-4 hours
TEMPO (TAF) meaning - CORRECT ANSWER - Transitory change expected during a
specific time period
PROB TAF meaning - CORRECT ANSWER - Probability between the specified time
period that weather conditions may occur
What is a METAR? - CORRECT ANSWER - The aviation routine weather report
(METAR) is the weather observer's interpretation of the weather conditions at a given site and
time.
When is a METAR issued? - CORRECT ANSWER - every hour
,What is a SPECI METAR? - CORRECT ANSWER - special report at any time to update
the METAR for rapidly changing weather, aircraft mishaps, or other critical info
What do upper wind and temperature forecast measure? - CORRECT ANSWER - Wind
direction = true
Wind speed = knots
What is a SIGMET? - CORRECT ANSWER - a warning of significant weather hazards
SIGMET validity - CORRECT ANSWER - 4 hours
Signets are issues for conditions that - CORRECT ANSWER - Could affect the safety of
aircraft in a particular area
What does an AIRMET do? - CORRECT ANSWER - Notifies pilots of potentially
hazardous weather which was not foreseen in the GFA
AIRMET valid period - CORRECT ANSWER - 4 hours
PIREPS - CORRECT ANSWER - Weather conditions when the actual weather conditions
encountered differ, either for the better or worse, from those forecast
PIREPS are useful when - CORRECT ANSWER - There are large distances between
weather reporting stations
what does CAVOK indicate? - CORRECT ANSWER - Ceilings and visibility ok
CAVOK Conditions - CORRECT ANSWER - - no cloud below 5,000ft or highest
minimum sector altitude
, - no cumulonimbus
- no precipitation or thunderstorms
- no fog or drifting snow
- Visibility 6 SM or greater
CAVOK is used in - CORRECT ANSWER - Air to ground communications/in ATIS
messages
Surface Analysis Chart are always in the - CORRECT ANSWER - Past
Surface analysis charts is surface to - CORRECT ANSWER - 3,000 feet AGL
Surface Analysis charts are issued - CORRECT ANSWER - 4 times a day
GFAs are issued how many times daily? - CORRECT ANSWER -4
How many charts are in one GFA forecast? - CORRECT ANSWER -6
What do GFAs forecast - CORRECT ANSWER - Clouds and weather
Icing and turbulence
Hypoxia cause - CORRECT ANSWER - Less air and less oxygen (per unit volume) at
higher altitudes
Effects of hypoxia progress from - CORRECT ANSWER - Euphoria (feeling of well
being), to reduced vision, confusion, inability to concentrate, impaired judgement and slowed
reflexes to eventual loss of consciousness