Instrument Ground Final Exam Review
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Stratified clouds - CORRECT ANSWER - Clouds formed if very stable moist air is forced
upslope.
Wind shear - CORRECT ANSWER - Occurs with either a wind shift or a wind speed
gradient at any level in the atmosphere.
Mature stage of a thunderstorm - CORRECT ANSWER - Signaled by the start of rain at
the surface.
Cumulonimbus cell approach - CORRECT ANSWER - A pilot should circumnavigate the
cell by at least 20 nautical miles.
Holding pattern entry procedure - CORRECT ANSWER - Direct only.
Temperature inversion feature - CORRECT ANSWER - A stable layer of air.
14 CFR Part 91 requirement - CORRECT ANSWER - An aircraft is required to have a
gyroscopic direction indicator.
Instrument time logging - CORRECT ANSWER - Only the time you controlled the
aircraft solely by reference to flight instruments may be logged.
METAR observation significant sky condition - CORRECT ANSWER - Sky is obscured
with vertical visibility of 800 ft.
, Winds aloft forecasts values - CORRECT ANSWER - The direction and knots.
Severe thunderstorm conditions - CORRECT ANSWER - Generally produced by squall
lines.
Microburst encounter effect - CORRECT ANSWER - Performance decreasing with a
tailwind and downdraft.
Minimum enroute altitude - CORRECT ANSWER - The altitude that provides acceptable
navigational signal coverage for the full route and meets obstacle clearance requirements.
Altitude limits condition - CORRECT ANSWER - 1000 ft obstacle clearance is
guaranteed for MAA, MCA, MRA, MOCA, and MEA in non-mountainous areas.
MOCA navigational signal coverage - CORRECT ANSWER - Acceptable navigational
signal coverage at the MOCA is assured for a distance from the VOR of only 22 NM.
Flight instrument checks before IFR - CORRECT ANSWER - VOR within 30 days,
altimeter systems within 24 calendar months, and transponder within 24 calendar months.
Dew point definition - CORRECT ANSWER - The temperature to which air must be
cooled to become saturated.
Water vapor capacity dependence - CORRECT ANSWER - The amount of water vapor
which air can hold largely depends on air temperature.
Operational consideration in freezing rain - CORRECT ANSWER - Temperatures are
above freezing at some higher altitude.
Frost hazard to flight operation - CORRECT ANSWER - Frost causes early aircraft
separation resulting in a loss of lift.
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Stratified clouds - CORRECT ANSWER - Clouds formed if very stable moist air is forced
upslope.
Wind shear - CORRECT ANSWER - Occurs with either a wind shift or a wind speed
gradient at any level in the atmosphere.
Mature stage of a thunderstorm - CORRECT ANSWER - Signaled by the start of rain at
the surface.
Cumulonimbus cell approach - CORRECT ANSWER - A pilot should circumnavigate the
cell by at least 20 nautical miles.
Holding pattern entry procedure - CORRECT ANSWER - Direct only.
Temperature inversion feature - CORRECT ANSWER - A stable layer of air.
14 CFR Part 91 requirement - CORRECT ANSWER - An aircraft is required to have a
gyroscopic direction indicator.
Instrument time logging - CORRECT ANSWER - Only the time you controlled the
aircraft solely by reference to flight instruments may be logged.
METAR observation significant sky condition - CORRECT ANSWER - Sky is obscured
with vertical visibility of 800 ft.
, Winds aloft forecasts values - CORRECT ANSWER - The direction and knots.
Severe thunderstorm conditions - CORRECT ANSWER - Generally produced by squall
lines.
Microburst encounter effect - CORRECT ANSWER - Performance decreasing with a
tailwind and downdraft.
Minimum enroute altitude - CORRECT ANSWER - The altitude that provides acceptable
navigational signal coverage for the full route and meets obstacle clearance requirements.
Altitude limits condition - CORRECT ANSWER - 1000 ft obstacle clearance is
guaranteed for MAA, MCA, MRA, MOCA, and MEA in non-mountainous areas.
MOCA navigational signal coverage - CORRECT ANSWER - Acceptable navigational
signal coverage at the MOCA is assured for a distance from the VOR of only 22 NM.
Flight instrument checks before IFR - CORRECT ANSWER - VOR within 30 days,
altimeter systems within 24 calendar months, and transponder within 24 calendar months.
Dew point definition - CORRECT ANSWER - The temperature to which air must be
cooled to become saturated.
Water vapor capacity dependence - CORRECT ANSWER - The amount of water vapor
which air can hold largely depends on air temperature.
Operational consideration in freezing rain - CORRECT ANSWER - Temperatures are
above freezing at some higher altitude.
Frost hazard to flight operation - CORRECT ANSWER - Frost causes early aircraft
separation resulting in a loss of lift.
