ATSC 113 Flying Problem set Exam Questions with all
answers Correctly provided Latest 2025/2026
Statically stable - correct answer S > 0; air become non-turbulent (if no
wind shear exists)
Statically neutral - correct answer S = 0; neither stable nor unstable
Statically unstable - correct answer S < 0; air becomes TURBULENT
*unstable air ALWAYS winds, if computation gives diff values of S for same
location
Convective Available Potential Energy (CAPE) - correct answer
Thunderstorm stability index; measure of accumulated buoyant E of rising
blob of warm humid air relative to cooler surrounding env that it's rising
through
K index - correct answer Thunderstorm stability index; looks @ temp &
dew-point (humidity) of env @ just few key altitudes
- useful for indicating rain intensity in thunderstorms
Thunderstorm - correct answer thick (deep) clouds, w/ bases near ground
& tops near troposphere (~11 km or 35,000 ft)
- often grow rapidly => INC in thickness as cloud top rises faster than most
civilian aircraft can climb
- have violent weather pilots should avoid
Anvil - correct answer the horizontally extended upper part of cloud.
, Cell - correct answer Like individual thunderstorm
Basic storms - correct answer Single cell (airmass), multicell, and
orographic thunderstorm
Cumulus stage - correct answer updrafts, no downdrafts; no rain; no anvil;
often not visible on radar
Dissipating stage - correct answer downdrafts, no updrafts; raining itself
out BUT leaving ice crystals in middle & upper parts of cloud; not very
visible on radar
Mature stage - correct answer both up & downdrafts; rain; anvil; most
VIOLENT stage; rain portion of cell visible on radar
Mesoscale convective systems (MCS) - correct answer large grouping of
multiple storms that move together and last for hours
Residue - correct answer - not officially listed as stage BUT affects pilots
- b/c ice crystals in anvil take long time to evaporate
=> blocks VFR flight through that region @ altitude of anvil cloud
Supercells - correct answer MOST DANGEROUS & LONG lived, self-
sustaining thunderstorm characterized by intense, rotating updrafts
Multicell thunderstorm - correct answer thunderstorms that contain a
number of cells, each in a different stage of development
- ea cell has diff hazards, even though they're all in same large cloud mass
answers Correctly provided Latest 2025/2026
Statically stable - correct answer S > 0; air become non-turbulent (if no
wind shear exists)
Statically neutral - correct answer S = 0; neither stable nor unstable
Statically unstable - correct answer S < 0; air becomes TURBULENT
*unstable air ALWAYS winds, if computation gives diff values of S for same
location
Convective Available Potential Energy (CAPE) - correct answer
Thunderstorm stability index; measure of accumulated buoyant E of rising
blob of warm humid air relative to cooler surrounding env that it's rising
through
K index - correct answer Thunderstorm stability index; looks @ temp &
dew-point (humidity) of env @ just few key altitudes
- useful for indicating rain intensity in thunderstorms
Thunderstorm - correct answer thick (deep) clouds, w/ bases near ground
& tops near troposphere (~11 km or 35,000 ft)
- often grow rapidly => INC in thickness as cloud top rises faster than most
civilian aircraft can climb
- have violent weather pilots should avoid
Anvil - correct answer the horizontally extended upper part of cloud.
, Cell - correct answer Like individual thunderstorm
Basic storms - correct answer Single cell (airmass), multicell, and
orographic thunderstorm
Cumulus stage - correct answer updrafts, no downdrafts; no rain; no anvil;
often not visible on radar
Dissipating stage - correct answer downdrafts, no updrafts; raining itself
out BUT leaving ice crystals in middle & upper parts of cloud; not very
visible on radar
Mature stage - correct answer both up & downdrafts; rain; anvil; most
VIOLENT stage; rain portion of cell visible on radar
Mesoscale convective systems (MCS) - correct answer large grouping of
multiple storms that move together and last for hours
Residue - correct answer - not officially listed as stage BUT affects pilots
- b/c ice crystals in anvil take long time to evaporate
=> blocks VFR flight through that region @ altitude of anvil cloud
Supercells - correct answer MOST DANGEROUS & LONG lived, self-
sustaining thunderstorm characterized by intense, rotating updrafts
Multicell thunderstorm - correct answer thunderstorms that contain a
number of cells, each in a different stage of development
- ea cell has diff hazards, even though they're all in same large cloud mass
