IFR Oral Prep (Answered) 2025/2026.
100% Verified. 95Q&A.
Alternate Airport - When necessary
1 - 2 -3
1 one hour before to 1 one hour after
2 two miles visibility
3 three thousand feet ceiling
Alternate Airport - what are the minimum weather conditions for an airport as an alternate?
If the instrument approach is to be used for that airport then the minimums apply. 14CFR 91.169c
What reference to some charts make as to alternate use?
Some charts list airport as not for use as an alternate. Some charts list minimums if to be used as an
alternate.
Fuel Requirements for instrument flight.
Fly to destination, fly to alternate and then fly 45 minutes after as cruise.
Pilot's instrument currency requirements:
66 HIT
preceding 6 months
6 instrument approaches, holds, and tracking of nav aids.
name of safety pilot and approach must be recorded.
6 months - then 6 months
Inspections required and checks required by pilot - and how often.
AV1ATES
Annual
VOR - 30 days
100 hr
A altimeter PITOT SYSTEM - 24 calendar months
TRANSPONDER - 24 months
ELT - half life and six months
S static system - 24
Anti-Icing & Deicing
pitot heat
carb heat
cabin heat
Which instruments rely on the vacuum system?
HSI
Attitude Indicator
, Which instruments rely on electrical system?
turn coordinator - redundancy for vacuum
Which instruments are on the static system?
Discuss
Altimeter - VSI
alt static port inside -
altimeter - aneroid wafer pressure connected.
rate and trend (VSI)
blocked - VSI - show zero, Altimeter show last altitude but climb as descend because of the pressure.
Magnetic Compass Errors
OSCILLATION - turbulence
DEVIATION - electric and magnetic in plane
VARIATION - difference between True and Magnetic North
DIP ERRORS:
(1) ACCELERATION - east to west: ANDS
(2) TURNING ERRORS - north and south: NOSA
What are the elements of an ATC clearance?
Carefully establish procedures for safe, orderly and expeditious traffic flow.
Controller's responsibilities?
Controller must be aware of the performance capabilities of the the various aircraft operating in the
the system in order to issue clearances and instructions with which the aircraft are capable of
complying.
Pilot's responsibilities:
The instrument pilot should be understand the overall traffic problem and the standardized IFR
control procedures in order to avoid being unprepared for an unexpected request or change in
clearance.
MEA
Minimum Enroute Altitude
Minimum en route altitude (MEA). The lowest published altitude between radio fixes that ensures
acceptable navigational signal coverage and meets obstacle clearance requirements between those
fixes
MOCA
Minimum obstruction clearance altitude (MOCA). The lowest published altitude in effect between
radio fixes on VOR airways, off-airway routes, or route segments, which meets obstacle clearance
requirements for the entire route segment and which ensures acceptable navigational signal
coverage only within 25 statute (22 nautical) miles of a VOR.
MOCA is the lowest altitude between two fixes that meets obstacle clearance requirements. This
altitude only assures an acceptable ground based navigation signal within 22 nautical miles of a VOR.
100% Verified. 95Q&A.
Alternate Airport - When necessary
1 - 2 -3
1 one hour before to 1 one hour after
2 two miles visibility
3 three thousand feet ceiling
Alternate Airport - what are the minimum weather conditions for an airport as an alternate?
If the instrument approach is to be used for that airport then the minimums apply. 14CFR 91.169c
What reference to some charts make as to alternate use?
Some charts list airport as not for use as an alternate. Some charts list minimums if to be used as an
alternate.
Fuel Requirements for instrument flight.
Fly to destination, fly to alternate and then fly 45 minutes after as cruise.
Pilot's instrument currency requirements:
66 HIT
preceding 6 months
6 instrument approaches, holds, and tracking of nav aids.
name of safety pilot and approach must be recorded.
6 months - then 6 months
Inspections required and checks required by pilot - and how often.
AV1ATES
Annual
VOR - 30 days
100 hr
A altimeter PITOT SYSTEM - 24 calendar months
TRANSPONDER - 24 months
ELT - half life and six months
S static system - 24
Anti-Icing & Deicing
pitot heat
carb heat
cabin heat
Which instruments rely on the vacuum system?
HSI
Attitude Indicator
, Which instruments rely on electrical system?
turn coordinator - redundancy for vacuum
Which instruments are on the static system?
Discuss
Altimeter - VSI
alt static port inside -
altimeter - aneroid wafer pressure connected.
rate and trend (VSI)
blocked - VSI - show zero, Altimeter show last altitude but climb as descend because of the pressure.
Magnetic Compass Errors
OSCILLATION - turbulence
DEVIATION - electric and magnetic in plane
VARIATION - difference between True and Magnetic North
DIP ERRORS:
(1) ACCELERATION - east to west: ANDS
(2) TURNING ERRORS - north and south: NOSA
What are the elements of an ATC clearance?
Carefully establish procedures for safe, orderly and expeditious traffic flow.
Controller's responsibilities?
Controller must be aware of the performance capabilities of the the various aircraft operating in the
the system in order to issue clearances and instructions with which the aircraft are capable of
complying.
Pilot's responsibilities:
The instrument pilot should be understand the overall traffic problem and the standardized IFR
control procedures in order to avoid being unprepared for an unexpected request or change in
clearance.
MEA
Minimum Enroute Altitude
Minimum en route altitude (MEA). The lowest published altitude between radio fixes that ensures
acceptable navigational signal coverage and meets obstacle clearance requirements between those
fixes
MOCA
Minimum obstruction clearance altitude (MOCA). The lowest published altitude in effect between
radio fixes on VOR airways, off-airway routes, or route segments, which meets obstacle clearance
requirements for the entire route segment and which ensures acceptable navigational signal
coverage only within 25 statute (22 nautical) miles of a VOR.
MOCA is the lowest altitude between two fixes that meets obstacle clearance requirements. This
altitude only assures an acceptable ground based navigation signal within 22 nautical miles of a VOR.
