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14. Icing

Jose Antonio Vazquez 10 questions 5.0 (3 ratings)

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Questions in this quiz (10)

  1. 11- At temperatures of between 0oC and -10oC clouds consist of:
    1. AEntirely water droplets.
    2. BEntirely ice crystals.
    3. CMostly water vapour.
    4. DMostly supercooled water droplets and a few ice crystals.
  2. 22- Turbulent clouds are most serious from the icing standpoint because:
    1. AStrong vertical currents mean that a predominance of large supercooled water droplets will be present.
    2. BStrong vertical currents mean that a predominance of small supercooled water droplets will be present.
    3. CTurbulent clouds produce hail which sticks to the aircraft.
    4. DTurbulent clouds indicate a low freezing level.
  3. 33- Hoar frost forms on an aircraft when:
    1. AThe aircraft suddenly enters a cloud at below freezing temperature.
    2. Bhe aircraft in sub zero clear air suddenly enters a colder region.
    3. CThe aircraft in sub zero clear air suddenly enters a warmer moist
      region.
    4. DThe aircraft suddenly enters a cloud which is at higher temperature than the surrounding air.
  4. 44- Stratus cloud of limited depth at a temperature of -5o C will most likely give:
    1. AModerate to heavy rime ice.
    2. BModerate to heavy glaze ice.
    3. CLight to moderate rime ice.
    4. DLight to moderate glaze ice.
  5. 55- Most cases of serious piston engine icing occur in cloud, fog, or precipitation with a temperature range between:
    1. A- 10ºC to +25ºC
    2. B-18ºC to +5ºC
    3. C-10ºC to 0ºC
    4. D-20ºC to +15ºC
  6. 66- Clear ice forms as a result of:
    1. ALarge supercooled water droplets spreading as they freeze.
    2. BIce pellets splattering on the aircraft.
    3. CSmall supercooled water droplets splashing over the aircraft.
    4. DWater vapur freezing to the aircraft.
  7. 77- Orographic uplift in stable conditions gives a strong vertical component to air movement thus supporting larger supercooled droplets in orographically formed cloud. Consideration should also be given to the fact that in this cloud:
    1. AThe 0ºC isotherm will be higher.
    2. BThe 0ºC isotherm will be lower.
    3. CThe lapse rate will be isothermal.
    4. DAn inversion can be anti-cyclonic.
  8. 88- Carburettor icing is unlikely:
    1. AIn cloud.
    2. BAt temperatures between -10oC and -30oC.
    3. CIn clear air.
    4. DWhen the RH is 60%.
  9. 99- Flying 50 nm ahead of a warm front out of cloud at 1000 ft in winter, with an ambient temperature of -8oC, there is a strong risk of:
    1. AHoar frost.
    2. BRime icing and carburettor icing.
    3. CStructure damage caused by hail.
    4. DClear ice in the form of rain ice.
  10. 1010- In AS cloud at FL 170 and a temperature of -20oC the airframe icing most likely to be experienced is:
    1. AModerate clear icing.
    2. BLight rime icing.
    3. CHoar frost.
    4. DSevere clear icing.

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Description
Tema 1 Meteo Quiz on 14. Icing, created by Jose Antonio Vazquez on 12/01/2018.
Language
Español
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