ATSC 231 Test 3 UPDATED ACTUAL
Questions and CORRECT Answers
3 hazards of turbulence - CORRECT ANSWER - • Loss of Control
• Airframe Damage
• Passenger Comfort/Safety
Which type of aircraft have the most accidents as a result of turbulence? - CORRECT
ANSWER - Part 121
Annual turbulence injuries - CORRECT ANSWER - 58 injuries
Aircraft Turbulence - CORRECT ANSWER - - Irregular motion of an aircraft in flight,
especially when characterized by rapid up-and-down motion, caused by a rapid variations of
atmospheric wind velocities.
Turbulence Meteorology - CORRECT ANSWER - Meteorological Turbulence - Irregular
fluctuations occurring in fluid motions
What factors affect the transition from laminar to turbulent flow - CORRECT ANSWER -
- Wind speed
- Surface Roughness
- Air Density
- Stability
- Viscosity
- Other factors
Two Types of turbulent flow - CORRECT ANSWER - - Wave
- Eddies or Vortices
, Characteristics of waves - CORRECT ANSWER - - Regular oscillation of wind
Characteristics of eddies - CORRECT ANSWER - - Eddies are vortices embedded in the
mean wind flow
What scale of turbulence affects aircraft? - CORRECT ANSWER - Microscale
Critical Eddie size for aircraft - CORRECT ANSWER - 50 to 1500 ft
What is the relationship between AOA and lift - CORRECT ANSWER - Lift increases
until critical AOA is reached which causes a stall
Load Factor - CORRECT ANSWER - - Ratio of the total air load acting on an aircraft to
the gross weight of the aircraft
What affects load factor in turbulence - CORRECT ANSWER - Vertical Acceleration
increases it
How does airspeed affect an aircrafts susceptibility to turbulence - CORRECT ANSWER -
Faster you are moving the stronger the load factor
Wing Loading - CORRECT ANSWER - - Ratio of weight of aircraft to wing surface area
What does high wing loading lead to? - CORRECT ANSWER - More protection from
turbulence
magnitude of turbulence measured in what - CORRECT ANSWER - G's
Questions and CORRECT Answers
3 hazards of turbulence - CORRECT ANSWER - • Loss of Control
• Airframe Damage
• Passenger Comfort/Safety
Which type of aircraft have the most accidents as a result of turbulence? - CORRECT
ANSWER - Part 121
Annual turbulence injuries - CORRECT ANSWER - 58 injuries
Aircraft Turbulence - CORRECT ANSWER - - Irregular motion of an aircraft in flight,
especially when characterized by rapid up-and-down motion, caused by a rapid variations of
atmospheric wind velocities.
Turbulence Meteorology - CORRECT ANSWER - Meteorological Turbulence - Irregular
fluctuations occurring in fluid motions
What factors affect the transition from laminar to turbulent flow - CORRECT ANSWER -
- Wind speed
- Surface Roughness
- Air Density
- Stability
- Viscosity
- Other factors
Two Types of turbulent flow - CORRECT ANSWER - - Wave
- Eddies or Vortices
, Characteristics of waves - CORRECT ANSWER - - Regular oscillation of wind
Characteristics of eddies - CORRECT ANSWER - - Eddies are vortices embedded in the
mean wind flow
What scale of turbulence affects aircraft? - CORRECT ANSWER - Microscale
Critical Eddie size for aircraft - CORRECT ANSWER - 50 to 1500 ft
What is the relationship between AOA and lift - CORRECT ANSWER - Lift increases
until critical AOA is reached which causes a stall
Load Factor - CORRECT ANSWER - - Ratio of the total air load acting on an aircraft to
the gross weight of the aircraft
What affects load factor in turbulence - CORRECT ANSWER - Vertical Acceleration
increases it
How does airspeed affect an aircrafts susceptibility to turbulence - CORRECT ANSWER -
Faster you are moving the stronger the load factor
Wing Loading - CORRECT ANSWER - - Ratio of weight of aircraft to wing surface area
What does high wing loading lead to? - CORRECT ANSWER - More protection from
turbulence
magnitude of turbulence measured in what - CORRECT ANSWER - G's
