Meteorology practice test

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.