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Lenticular cloud - Quiz
Lenticular cloud
  • 1. What is the Latin meaning of the word 'lenticular'?
A) Saucer-sized
B) Lentil-shaped
C) Mountain-shaped
D) Cloud-like
  • 2. In which layer of the atmosphere do lenticular clouds primarily form?
A) Mesosphere
B) Stratosphere
C) Troposphere
D) Thermosphere
  • 3. Which clouds, sometimes found in the lower stratosphere, can have a lenticular shape?
A) Stratus
B) Cumulus
C) Nacreous
D) Cirrus
  • 4. Which of the following is a recognized type of lenticular cloud?
A) Altostratus standing lenticular
B) Altocumulus standing lenticular (ACSL)
C) Nimbostratus standing lenticular
D) Cumulonimbus standing lenticular
  • 5. Lenticular clouds typically align in what direction relative to the wind?
A) Opposite
B) Diagonal
C) Perpendicular
D) Parallel
  • 6. What is the term for a formation created by long strings of lenticular clouds?
A) Turbulence band
B) Wave cloud
C) Saucer chain
D) Lens formation
  • 7. On which side of a mountain do large-scale standing waves typically form?
A) Northern
B) Leeward
C) Southern
D) Windward
  • 8. What must happen at the crest of the wave for a lenticular cloud to form?
A) Temperature drops below the dew point
B) Temperature rises above the boiling point
C) Wind speed decreases to zero
D) Humidity drops to zero
  • 9. Why have lenticular clouds often been mistaken for UFOs?
A) Their bright, flashing lights
B) Their lens or saucer-like shape
C) Their high speed movement
D) Their sudden appearance and disappearance
  • 10. What are the bright colors sometimes seen along the edge of these clouds called?
A) Diffraction
B) Refraction
C) Iridescence
D) Haloing
  • 11. Why do pilots of powered aircraft generally avoid lenticular clouds?
A) Extreme cold
B) Low visibility
C) Turbulence and sinking air
D) Static electricity
  • 12. Which group of pilots actively seeks out lenticular clouds for lift?
A) Commercial airline pilots
B) Glider pilots
C) Helicopter pilots
D) Military pilots
  • 13. Where does the upward-moving air that glider pilots use typically occur?
A) Above the cloud
B) At the leading edge
C) In the center of the cloud
D) At the trailing edge
  • 14. Lenticular clouds generally do not form over what type of terrain?
A) Low-lying or flat
B) Mountainous
C) Hilly
D) Rugged
  • 15. What is the name for the type of lift provided by lenticular wave systems?
A) Ridge lift
B) Thermal lift
C) Dynamic lift
D) Wave lift
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