NIFE Navigation Exam Questions and
Answers 100% Pass
What pieces of information would you expect to be given for a True Airspeed/Mach
Number Calculation? - ✔✔Calibrated Altitude
Indicated Airspeed
Altimeter Setting
Outside Air Temp
What three inputs are required for determining True Air Speed with the Whiz Wheel? -
✔✔1. Pressure Altitude
2. Calibrated Air Speed
3. Outside Air Temp
What is IAS? - ✔✔Indicated Airspeed - read directly from Airspeed Indicator
What is TAS? - ✔✔True Airspeed - CAS corrected for air density (pressure and
temperature) and is the speed of the aircraft through the airmass
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, What is CAS? - ✔✔Calibrated Airspeed - IAS corrected for instrument installation error
What is GS? - ✔✔Ground Speed - the actual speed of the aircraft relative to the ground,
and is found by correcting TAS for headwind/tailwind
What is the effect of air density on True Airspeed and Mach Number? - ✔✔As density
decreases (altitude increases), TAS increases. Mach number also increases because M is
a ratio of TAS to local speed of sound
What does LAGS stand for and what does it refer to? - ✔✔Calculating pressure altitude
given calibrated altitude and local altimeter setting
LAGS:
if local altimeter is LESS than 29.92" Hg
ADD difference
if local altimeter is GREATER than 29.92
SUBTRACT difference
What are we solving for in a preflight wind problem? - ✔✔True Heading and Ground
Speed
What is crab angle? - ✔✔Difference between True Heading and True Course measure
left or right of Trur Course
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Answers 100% Pass
What pieces of information would you expect to be given for a True Airspeed/Mach
Number Calculation? - ✔✔Calibrated Altitude
Indicated Airspeed
Altimeter Setting
Outside Air Temp
What three inputs are required for determining True Air Speed with the Whiz Wheel? -
✔✔1. Pressure Altitude
2. Calibrated Air Speed
3. Outside Air Temp
What is IAS? - ✔✔Indicated Airspeed - read directly from Airspeed Indicator
What is TAS? - ✔✔True Airspeed - CAS corrected for air density (pressure and
temperature) and is the speed of the aircraft through the airmass
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 1
, What is CAS? - ✔✔Calibrated Airspeed - IAS corrected for instrument installation error
What is GS? - ✔✔Ground Speed - the actual speed of the aircraft relative to the ground,
and is found by correcting TAS for headwind/tailwind
What is the effect of air density on True Airspeed and Mach Number? - ✔✔As density
decreases (altitude increases), TAS increases. Mach number also increases because M is
a ratio of TAS to local speed of sound
What does LAGS stand for and what does it refer to? - ✔✔Calculating pressure altitude
given calibrated altitude and local altimeter setting
LAGS:
if local altimeter is LESS than 29.92" Hg
ADD difference
if local altimeter is GREATER than 29.92
SUBTRACT difference
What are we solving for in a preflight wind problem? - ✔✔True Heading and Ground
Speed
What is crab angle? - ✔✔Difference between True Heading and True Course measure
left or right of Trur Course
100% Pass Guarantee Emilly Charlotte, All Rights Reserved © 2025 2
