Pass mark 75% from twenty randomly chosen questions.
#1. Carburettor ice is formed
#2. An occluded front is where:
#3. In the southern hemisphere, high pressure system winds circulate in which direction?
#4. One hectopascal (hPa) represents a change in altitude of:
#5. You’re at an airfield just a few feet above sea level, and it’s a standard day (ISA). Approximately what altitude would you find a temperature of -1 degrees Celsius?
The standard lapse rate is 2 degrees for every thousand feet. ISA standard temperature is 15 degrees at sea level.
The difference between 15 and -1 is 16 degrees. Dividing this value by 2 (two degrees per thousand feet) gives you 8. Multiply that by 1,000 and you get an altitude of 8,000 feet.
#6. The lapse rate for a dry parcel of air is:
#7. In the International Standard Atmosphere (ISA), the temperature lapse rate is assumed to be:
#8. Fog that forms from the interaction of two airmasses is called:
#9. At the passage of a warm front you would expect:
#10. The atmosphere:
#11. What units is pressure measured in?
#12. In the northern hemisphere, an aircraft flying from an area of high to low pressure will experience:
Due to the anti-clockwise motion of the airmass, and going towards the low pressure area, the wind will be from the left (port) causing a right (starboard) drift.
#13. On a cold, clear night, ice crystals may form on a surface directly from water vapour. What is this process called?
#14. Considering the following METAR for Catania-Fontanarossa airport: LICC 231020Z 23007KT 200V280 9999 FEW060 13/04 Q1028=. Which of the following statements is not incorrect?
Location: LICC Day of month: 23 Time: 10:20 UTC Wind: True direction = 230 degrees, Speed: 7 knots Wind direction is variable between 200 and 280 Visibility: 10 km or more Clouds: Few (1-2 oktas), at 6000 feet above aerodrome level Temperature: 13 degrees Celsius Dewpoint: 04 degrees Celsius QNH (Sea-level pressure): 1028 hPa
#15. A TAF is a weather:
#16. For smog to form:
#17. A wind whose direction has changed clockwise is said to have:
#18. Orographically formed clouds occur:
#19. There is a natural tendency for air to flow to areas of ________ pressure from areas of ________ pressure. (Fill in the missing spaces correctly.)
#20. The __________ is the boundary in the Earth’s atmosphere between the troposphere and the stratosphere.