LESSON 7.RAIN AND ICE PROTECTION

Ismael Vázquez
Quiz by Ismael Vázquez, updated more than 1 year ago
Ismael Vázquez
Created by Ismael Vázquez over 3 years ago
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Description

AVIÓNICA Quiz on LESSON 7.RAIN AND ICE PROTECTION, created by Ismael Vázquez on 03/04/2018.

Resource summary

Question 1

Question
Q1. Aircraft surfaces must be designed to suffer in flight aerodynamic degradation due to the ice formation
Answer
  • A. Yes, always.
  • B. Yes, but not during take off.
  • C. No, never.
  • D. Yes, but not during landing.

Question 2

Question
Q2. Which of the following are windscreen rain removal systems?
Answer
  • Curved and rear-sloping windscreen
  • Windshield wipers
  • Rain repellent: for torrential rain conditions
  • All of the above are correct

Question 3

Question
Which of the following are types of ice?
Answer
  • Clear ice
  • Rain ice
  • Rime ice
  • All of the above are correct

Question 4

Question
A safe flight must take also into account possible weather hazards that might be encountered. These can be of different types:
Answer
  • structural (gust, hail impact)
  • ice
  • lightnings
  • All of the above are correct

Question 5

Question
Mixed ice…
Answer
  • Is the Combination of glaze and rime ice
  • Can not occur today
  • Take place in clouds with temperature transition from small to large supercooled water droplets.
  • Options A and C are true

Question 6

Question
About Rime ice…
Answer
  • It is a Transparent air free sheet
  • We can see in flight in dense clouds of small supercooled water droplets
  • It has an opaque white structure due to air trapped between droplets
  • It has an opaque white structure due to the viscosity of the types of droplets

Question 7

Question
Effects of ice accretion on an aircraft
Answer
  • Weight increases
  • Alteration of airfoil shape
  • Loss of control due to freeze in the joints between control surfaces and wings / tailplanes
  • All of the above are correct

Question 8

Question
About frost/Hoar frost…
Answer
  • Ice crystals from sublimation when water vapour freezes
  • Ice crystals from condensation when water vapour freezes
  • Black crystaline structure
  • It does form a heavy blanket but roughens the surface --> increase aerodynamic performances
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