Ismael Vázquez
Quiz by , created more than 1 year ago

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

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Ismael Vázquez
Created by Ismael Vázquez about 6 years ago
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LESSON 7.RAIN AND ICE PROTECTION

Question 1 of 8

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Q1. Aircraft surfaces must be designed to suffer in flight aerodynamic degradation due to the ice formation

Select one or more of the following:

  • A. Yes, always.

  • B. Yes, but not during take off.

  • C. No, never.

  • D. Yes, but not during landing.

Explanation

Question 2 of 8

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Q2. Which of the following are windscreen rain removal systems?

Select one or more of the following:

  • Curved and rear-sloping windscreen

  • Windshield wipers

  • Rain repellent: for torrential rain conditions

  • All of the above are correct

Explanation

Question 3 of 8

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Which of the following are types of ice?

Select one of the following:

  • Clear ice

  • Rain ice

  • Rime ice

  • All of the above are correct

Explanation

Question 4 of 8

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A safe flight must take also into account possible weather hazards that might be encountered. These can be of different types:

Select one or more of the following:

  • structural (gust, hail impact)

  • ice

  • lightnings

  • All of the above are correct

Explanation

Question 5 of 8

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Mixed ice…

Select one or more of the following:

  • 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

Explanation

Question 6 of 8

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About Rime ice…

Select one or more of the following:

  • 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

Explanation

Question 7 of 8

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Effects of ice accretion on an aircraft

Select one or more of the following:

  • 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

Explanation

Question 8 of 8

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About frost/Hoar frost…

Select one or more of the following:

  • 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

Explanation

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