INRAT EXAM PREP QUESTIONS AND
ANSWERS ALL CORRECT
What frequencies do localizers operate on - Answer- 108.1-111.9 MHz
What is the typical localizer signal width - Answer- 5 degrees plus or minus 2.5 degrees
scale deflection to each side
Localizer protected airspace - Answer- 35 degrees on either side to 10 NM from RWY
10 degrees on either side from 10 NM to 18 NM
Glideslope frequency - Answer- paired with a localizer so when you select an localizer
automatically selects the glideslope as well
Glideslope thickness - Answer- 1.4 degrees in thickness plus or minus 0.7 degrees for
full scale deflection on either side
What are the acceptable limits of the glideslope over the threshold - Answer- plus 55 ft
and minus 5 ft
How many satellites are orbiting earth - Answer- 24
How accurate are the satellites - Answer- 6 meters horizontally and 8 meters vertically
95% of the time
What items do you need for a 3D fix - Answer- latitude, longitude, altitude, time
How many satellites are required for a 3D fix - Answer- 4
Requirements for instrument rating - Answer- 70% on INRAT
50 hours PIC cross country 10 of which must be in plane
40 hours instrument time with max 20 on ground
100 NM cross country
IFR currency - Answer- valid for 24 months after flight test, ppc, pcc and instrument
proficiency test
AND
6,6,6 rule 6 month, 6 hours, 6 approaches
, Compass turning errors - Answer- UNOS
understeer North Oversteer South
compass acceleration and deceleration errors - Answer- ANDS
Accelerate North Decelerate South
the 2 properties of gyroscopic instruments - Answer- Rigidity in space and precession
which instruments are typically powered by VAC - Answer- Attitude indicator and
Heading Indicator
which instruments are typically eclectically powered - Answer- turn coordinator and turn
and bank indicator
rate 1 turn equation - Answer- TAS/10+7
where does standard pressure region start in southern domestic airspace - Answer- 18
000 ft
where does standard pressure region start in northern domestic airspace - Answer-
from the ground up
when do you set altimeter to standard pressure region - Answer- when in the standard
pressure region
when pressure drops below in inch HG the standard pressure region will increase in
how much altitude - Answer- 1000 ft
how long can altimeter settings be used - Answer- 90 minutes be aware of them after 60
minutes in changing temps and pressure areas
what altitudes are cold weather corrections made for - Answer- MEAs MOCAs MSAs
min crossing Alts Decision heights Min descent alts
do you have to make cold weather corrections for radar vectored altitudes - Answer- No
what is pressure altitude - Answer- altitude the altimeter would read at 29.92
what are the pitot static instruments - Answer- Altimter, ASI, VSI
which instruments use static - Answer- VSI, Altimeter
which instruments use pitot and static - Answer- ASI
what is CAS corrected for - Answer- density error
ANSWERS ALL CORRECT
What frequencies do localizers operate on - Answer- 108.1-111.9 MHz
What is the typical localizer signal width - Answer- 5 degrees plus or minus 2.5 degrees
scale deflection to each side
Localizer protected airspace - Answer- 35 degrees on either side to 10 NM from RWY
10 degrees on either side from 10 NM to 18 NM
Glideslope frequency - Answer- paired with a localizer so when you select an localizer
automatically selects the glideslope as well
Glideslope thickness - Answer- 1.4 degrees in thickness plus or minus 0.7 degrees for
full scale deflection on either side
What are the acceptable limits of the glideslope over the threshold - Answer- plus 55 ft
and minus 5 ft
How many satellites are orbiting earth - Answer- 24
How accurate are the satellites - Answer- 6 meters horizontally and 8 meters vertically
95% of the time
What items do you need for a 3D fix - Answer- latitude, longitude, altitude, time
How many satellites are required for a 3D fix - Answer- 4
Requirements for instrument rating - Answer- 70% on INRAT
50 hours PIC cross country 10 of which must be in plane
40 hours instrument time with max 20 on ground
100 NM cross country
IFR currency - Answer- valid for 24 months after flight test, ppc, pcc and instrument
proficiency test
AND
6,6,6 rule 6 month, 6 hours, 6 approaches
, Compass turning errors - Answer- UNOS
understeer North Oversteer South
compass acceleration and deceleration errors - Answer- ANDS
Accelerate North Decelerate South
the 2 properties of gyroscopic instruments - Answer- Rigidity in space and precession
which instruments are typically powered by VAC - Answer- Attitude indicator and
Heading Indicator
which instruments are typically eclectically powered - Answer- turn coordinator and turn
and bank indicator
rate 1 turn equation - Answer- TAS/10+7
where does standard pressure region start in southern domestic airspace - Answer- 18
000 ft
where does standard pressure region start in northern domestic airspace - Answer-
from the ground up
when do you set altimeter to standard pressure region - Answer- when in the standard
pressure region
when pressure drops below in inch HG the standard pressure region will increase in
how much altitude - Answer- 1000 ft
how long can altimeter settings be used - Answer- 90 minutes be aware of them after 60
minutes in changing temps and pressure areas
what altitudes are cold weather corrections made for - Answer- MEAs MOCAs MSAs
min crossing Alts Decision heights Min descent alts
do you have to make cold weather corrections for radar vectored altitudes - Answer- No
what is pressure altitude - Answer- altitude the altimeter would read at 29.92
what are the pitot static instruments - Answer- Altimter, ASI, VSI
which instruments use static - Answer- VSI, Altimeter
which instruments use pitot and static - Answer- ASI
what is CAS corrected for - Answer- density error
