CPL Met questions with correct answers

What effect does the Coriolus effect have on wind direction in the Southern Hemisphere? - correct answer The air is deflected to the left because the Earth rotates from west to east. What region in the Southern Hemisphere is this most evident and what direction does the wind change to? - correct answer Wind from the sub-tropical ridge is deflected to a south-easterly flow towards the equatorial trough. This is called the South-East trade winds. What is the El Nino effect? - correct answer Traditional East to West winds change direction and travel to the East resulting in rain in South America and drought in Australia. If someone's back is to the wind what direction is the low pressure system? - correct answer Always to the right. What effect do high and low pressure systems have on aircraft drift? - correct answer High pressure systems cause the aircraft to drift to the right, low pressure systems cause the aircraft to drift to the left. What direction is the surface wind in the Southern Hemisphere in relation to the gradient wind? - correct answer Always to the right of the gradient wind. What affect does land and sea have on the the direction and speed of wind? - correct answer Over land - speed drops by 2/3rds and direction veers 30 degrees. Over sea - speed drops by 1/3 and direction veers by 10 degrees. What is the definition of a squall? - correct answer Wind speed changes by at least 16 knots and reaches 22 knots or more, is sustained for more than 1 minute.