ATSC 231 - Block 3 Questions with complete solution
0 view 0 purchase
Course
ATSC 231
Institution
ATSC 231
ATSC 231 - Block 3 Questions with complete solution
What are the three hazards resulting from turbulence? - correct answer 1. Loss of Control
2. Airframe Damage
3. Passenger Comfort/Safety
What type of aircraft operations does turbulence produce the greatest frequency of accidents? - cor...
ATSC 231 - Block 3 Questions with
complete solution
What are the three hazards resulting from turbulence? - correct answer ✔1.
Loss of Control
2. Airframe Damage
3. Passenger Comfort/Safety
What type of aircraft operations does turbulence produce the greatest
frequency of accidents? - correct answer ✔Part 121
What is the average annual number of injuries from turbulence? - correct
answer ✔58
What is the definition of aircraft turbulence? - correct answer ✔Irregular
motion of an aircraft in flight, especially when characterized by rapid up-and-
down motion, caused by rapid variations of atmospheric wind velocities.
What is the definition of meteorological turbulence? - correct answer
✔Irregular fluctuations, occurring in fluid motions.
What are the factors that determine the transition from laminar to turbulent
flow? - correct answer ✔- Wind speed
- Surface roughness
- Air density
- Stability
- Viscosity
- Other factors
,What are the two types of turbulent flow? - correct answer ✔1. Wave
2. Eddies or Vorticies
Describe the characteristics of waves and eddies. - correct answer ✔Wave:
regular oscillation of wind
Eddies: vortices embedded in the mean wind flow (size, advection, gusts)
Which scale represents turbulent motions for aircraft? - correct answer
✔Microscale
What are the factors that determine lift? - correct answer ✔- Coefficient of lift
(AOA)
- Air density
- Airspeed
- Wing area
How does the coefficient of lift change with angle of attack? - correct answer
✔The coefficient of lift increases with angle of attack.
What is load factor? - correct answer ✔The ratio of the total air load acting
on an aircraft to the gross weight of the aircraft.
What are factors that affect load factor in turbulence? - correct answer ✔-
Gusts
- Airspeed
- Wing Loading
, How do vertical gusts affect load factor? - correct answer ✔Vertical gusts
increase load factor.
How does airspeed affect load factor? - correct answer ✔As airspeed
increases, load factor increases.
What is wing loading? - correct answer ✔Ratio of weight of aircraft to wing
surface area.
How does wing loading affect load factor? - correct answer ✔Gust load
factor is inversely proportional to wing loading. (Higher wing loading, smaller
load factor)
What are the various units that are used to describe the magnitude of
turbulence? - correct answer ✔- Gust: IVSI - fpm
- Acceleration: Accelerometer- G's
- Turbulent Kinetic Energy (TKE): Calculations - m2/s2
- Eddy Dissipation Rate (EDR): ICAO standard
What is convective turbulence? - correct answer ✔Turbulence that results
from rising currents of air.
Generally describe the characteristics of thermals. - correct answer ✔-
Column or Plume model
- Bubble or Vortex Ring
- Vertical Velocity
- Width
- Height
- Length
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Academia199. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
