IATRA FLIGHT INSTRUMENTS AND NAVIGATION 2025 EXAM UPDATED
QUESTIONS AND ANSWERS
instruments tied to Pitot static system - CORRECT ANSWER✅✅airspeed, altimeter, vsi
when must the pitot static system be certified - CORRECT ANSWER✅✅when worked on and every 24
months
airspeed indicator is connected to what - CORRECT ANSWER✅✅both the pitot tube and static port
what type of airspeeds are there (ICE-T) - CORRECT ANSWER✅✅indicated
calibrated
equivalent
true
what types of errors are there with airspeed
ICE-T pretty cool drink - CORRECT ANSWER✅✅indicated to calibrated - positioning error
calibrated to equivalent - compressibility error
equivalent to true - density error
what is a mach meter - CORRECT ANSWER✅✅continuous indication of the ratio of an aircrafts true
airspeed to the local speed of sound
does mach number need correction for altitude and temperature - CORRECT ANSWER✅✅no because
the existing temp at flight level determines the speed of sound at flight level
how to calculate mach number (e6b) - CORRECT ANSWER✅✅rotate inner dial of the e6b until mach no
index appears
line up oat
find tas on outer scale
, what is the max permissible error for altimeter when compared to known ground elevation - CORRECT
ANSWER✅✅+- 50 feet
how long is an altimeter setting current for - CORRECT ANSWER✅✅up to 90 mins from time of
observation
pressure error of 1"hg is equal to _______ feet - CORRECT ANSWER✅✅1000
altimeter setting too high will - CORRECT ANSWER✅✅read too high
altimeter setting too low will - CORRECT ANSWER✅✅read too low
when flying from a high pressure system to a low pressure system (altimeter) - CORRECT
ANSWER✅✅the altimeter will read too high
standard temperature at sea level - CORRECT ANSWER✅✅15 degrees Celsius
standard lapse rate - CORRECT ANSWER✅✅2 degrees per 1000 feet
density altitude formula - CORRECT ANSWER✅✅PA + [120x(actual temp - standard temp)]
what does a radar altimeter indicate and how does it work - CORRECT ANSWER✅✅it indicates absolute
altitude and it measures the time delay from signals to measure height
when can radar altimeters have errors - CORRECT ANSWER✅✅when terrain is rapidly changing
what is the vsi connected too - CORRECT ANSWER✅✅only connected to the static port
how does a vsi work - CORRECT ANSWER✅✅measures the change using barometric pressure
QUESTIONS AND ANSWERS
instruments tied to Pitot static system - CORRECT ANSWER✅✅airspeed, altimeter, vsi
when must the pitot static system be certified - CORRECT ANSWER✅✅when worked on and every 24
months
airspeed indicator is connected to what - CORRECT ANSWER✅✅both the pitot tube and static port
what type of airspeeds are there (ICE-T) - CORRECT ANSWER✅✅indicated
calibrated
equivalent
true
what types of errors are there with airspeed
ICE-T pretty cool drink - CORRECT ANSWER✅✅indicated to calibrated - positioning error
calibrated to equivalent - compressibility error
equivalent to true - density error
what is a mach meter - CORRECT ANSWER✅✅continuous indication of the ratio of an aircrafts true
airspeed to the local speed of sound
does mach number need correction for altitude and temperature - CORRECT ANSWER✅✅no because
the existing temp at flight level determines the speed of sound at flight level
how to calculate mach number (e6b) - CORRECT ANSWER✅✅rotate inner dial of the e6b until mach no
index appears
line up oat
find tas on outer scale
, what is the max permissible error for altimeter when compared to known ground elevation - CORRECT
ANSWER✅✅+- 50 feet
how long is an altimeter setting current for - CORRECT ANSWER✅✅up to 90 mins from time of
observation
pressure error of 1"hg is equal to _______ feet - CORRECT ANSWER✅✅1000
altimeter setting too high will - CORRECT ANSWER✅✅read too high
altimeter setting too low will - CORRECT ANSWER✅✅read too low
when flying from a high pressure system to a low pressure system (altimeter) - CORRECT
ANSWER✅✅the altimeter will read too high
standard temperature at sea level - CORRECT ANSWER✅✅15 degrees Celsius
standard lapse rate - CORRECT ANSWER✅✅2 degrees per 1000 feet
density altitude formula - CORRECT ANSWER✅✅PA + [120x(actual temp - standard temp)]
what does a radar altimeter indicate and how does it work - CORRECT ANSWER✅✅it indicates absolute
altitude and it measures the time delay from signals to measure height
when can radar altimeters have errors - CORRECT ANSWER✅✅when terrain is rapidly changing
what is the vsi connected too - CORRECT ANSWER✅✅only connected to the static port
how does a vsi work - CORRECT ANSWER✅✅measures the change using barometric pressure
