ATSC 231 Block 3 Questions with

ATSC 231 Block 3 Questions with Complete Solutions (Latest 2025) Be able to identify the three hazards resulting from turbulence - Correct Answers ✅1. Loss of Control

• Airframe Damage
• Passenger Comfort/Safety

Be able to identify the type of aircraft operation in which turbulence produces the greatest frequency of accidents - Correct Answers ✅Part 121 Be able to identify the characteristics of Part 121 turbulence related accidents, including annual trend, time of year, altitudes, phase of flight, causes of turbulence, type of person, location within aircraft and activity - Correct

Answers ✅Part 121 turbulence:

-most are caused from convective turbulence (57.7%) but also some from clear air turbulence (28.8%) -most turbulence accidents caused in July (convective) -most clear air accidents in February followed by December (in part from mountain waves) -most accidents occurred during the enroute-decent followed by enroute-cruise 1 / 4

ATSC 231 Block 3 Questions with Complete Solutions (Latest 2025) -most occur below 20,000' as the aircraft descends from altitude -flight attendants most likely damaged (78.9%) followed by passengers (21.1%)

-most flight attendants injured in the: aft cabin

-flight attendants most injured when: preparing cabin for

decent and landing -passengers most likely damages when using/ waiting for bathroom -most injuries when seatbelt not being used -lower extremity was the most common area of damage for both flight attendants and passengers Be able to identify the average annual number of injuries from turbulence - Correct Answers ✅58 injuries Be able to identify the definitions of aircraft and meteorological turbulence - Correct Answers ✅Turbulence (Aircraft): Irregular motion of an aircraft in flight, especially 2 / 4

ATSC 231 Block 3 Questions with Complete Solutions (Latest 2025) when characterized by rapid up-and-down motion, caused by a rapid variations of atmospheric wind velocities.

Meteorological Turbulence: Irregular fluctuations occurring in

fluid motions Be able to identify the factors that determine the transition from laminar to turbulent flow - Correct Answers ✅- Wind speed

• Surface Roughness
• Air Density
• Stability
• Viscosity
• Other factors

Be able to identify two types of turbulent flow - Correct Answers ✅- Wave

• Eddies or Vortices

Be able to describe the characteristics of waves and eddies -

Correct Answers ✅Wave: Regular oscillation of wind

Eddies: Vortices embedded in the mean wind flow 3 / 4

ATSC 231 Block 3 Questions with Complete Solutions (Latest 2025) Be able to identify the scale which represents turbulent motions for aircraft - Correct Answers ✅Microscale Critical Eddie size for aircraft - Correct Answers ✅50 to 1500 ft Be able to describe how the coefficient of lift changes with angle of attack - Correct Answers ✅Lift increases until critical AOA is reached which causes a stall Be able to define load factor - Correct Answers ✅Ratio of the total air load acting on an aircraft to the gross weight of the aircraft Be able to identify the factors that affect load factor in turbulence - Correct Answers ✅-Gusts -Airspeed -Wing Loading Be able to describe how vertical gusts affect load factor - Correct Answers ✅-As a vertical gust occurs, you have a new average relative wind and thus an increased AOA -Change in AOA and thus a change in Coefficient of Lift

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