MET Q17 - Air Masses

Question 1

Air masses which are being cooled from below are often characterised by…
Select one:

a.Fog, poor visibility and layered clouds.

b.Uniform temperature, good visibility.

c.Strong winds, cumulus clouds, good visibility.

d.Continuous rain and freezing temperatures

Answer 1

a.Fog, poor visibility and layered clouds.

Question 2

An air mass is a large block of air with almost homogenous conditions of…

Select one:

a.pressure and humidity

b.temperature and humidity

c.humidity and density

d.Temperature and pressure

Answer 2

b.temperature and humidity

Question 3

In which of the following air masses would we expect to experience the lowest temperatures?
Select one:

a.Continental tropical

b.Maritime arctic

c.Maritime polar

d.Continental polar

Answer 3

d.Continental polar

Question 4

The major air masses which most often affect the UK are

Select one:

a.mP, mT, cP and mRP

b.mP, mT, cP and occasionally mA

c.mP, mT, cT and cP

d.mP, mT, cT and occasionally mE

Answer 4

c.mP, mT, cT and cP

Question 5

The weather most likely to be experienced on the east coast of UK with an arctic maritime flow is
Select one:

a.fog lifting to low stratus

b.overcast stratus with light precipitation

c.heavy showers of rain or snow

d.little or no cloud

Answer 5

c.heavy showers of rain or snow

Question 6

Which of the following air mass tracks give rise to significant lower level instability?
Select one:

a.cP, cT and mT

b.mA and cP

c.mA and mP

d.mT, mRP and mP

Answer 6

c.mA and mP

Question 7

An air mass tracking towards the UK and N Europe with its origin over the N African continent is known as…

Select one:

a.maritime tropical

b.maritime equatorial

c.continental tropical

d.continental polar

Answer 7

c.continental tropical

Question 8

Which air mass is likely to cause advection fog to affect the UK in both winter and summer?

Select one:

a.Maritime polar

b.Continental polar

c.Maritime tropical

d.Continental tropical

Answer 8

c.Maritime tropical