MET post PT 5 Flashcards
One of the causes of obscuration, in meteorological terms, is a reduction in visibility due to [ ].
[sand]
Which of the following statements best describes the Bora?
a.It is a steady and cool northerly wind blowing in Greece, Turkey and above the Aegean Sea in summer
b.It is a strong, cold, squally, downslope wind at the Adriatic coast
c.It blows over Italy from a southerly direction, is a warm and sometimes humid wind, often transporting dust and sand
d.It is a strong and gusty wind blowing from a north-north-westerly direction through the Rhone valley in France
b.It is a strong, cold, squally, downslope wind at the Adriatic coast
During a take-off at sunrise in hazy conditions, runway [ ] is the most likely to be affected by a reduction in visibility.
[09]
A TREND in a METAR is valid for [ ] from the time of observation
[2 hours]
A gridded area forecast is produced by [ ].
[World Area Forecast Centres]
Refer to the message below. What is the most significant consideration for a pilot flying in the conditions described?
171020Z 21005KT 9000 FEW030TCU FEW033CB SCT040 BKN100 19/18 Q1005 TEMPO 25015G25KT 3000 TSRA SCT005 BKN015CB
a.Passage under the thunderstorms with this base is safe
b.CB clouds are in the vicinity and do not require action by the pilot
c.There are thunderstorms present that should be avoided
d. Caution is needed for rain showers developing in the next three hours
c.There are thunderstorms present that should be avoided
What is the correct statement regarding Cold Air Drops?
a.They can only be identified on a surface chart as a low pressure area
b.They are best identified by looking at the isobars on a surface chart
c.They are represented as a high pressure area aloft (e.g. on the 500hPa chart)
d.They can be identified by looking at the upper wind and temperature conditions
d.They can be identified by looking at the upper wind and temperature conditions
The properties of a continental air mass are:
a.wet, loses moisture because it has travelled over land
b.wet, gains moisture due to stable weather over land
c.dry, becomes moist due to stable weather over land
d.dry, loss of moisture because it has travelled over land
d.dry, loss of moisture because it has travelled over land
What is a disadvantage of airborne weather radar?
a.It uses a high level of electrical power which increases fuel consumption
b.It is harmful to humans and animals during cruise flight
c.Severe weather can hide more severe weather behind it
d.Echoes from the radar cannot be properly picked up in CAT
c.Severe weather can hide more severe weather behind it
The average diameter of a tropical revolving storm in the mature stage is
[ ] km.
[500]
It is the early afternoon on a sunny day in summer and an aircraft is flying over the west coast of the Netherlands. If there is a non-frontal environment with a slack pressure gradient, the wind direction at the surface is likely to be [ ]
[westerly]
On an infra-red meteorological satellite image, a large bright white area is clearly noted. On a visible satellite image of the same area, at the same time, a translucent whitish layer is observed. The most likely conclusion from both images is that there is
a.a thin layer of cirrostratus
b.cumuliform clouds
c.a thin layer of stratus
d.shallow fog
a.a thin layer of cirrostratus
In a chronological order, correctly place the four stages of a mid-latitude depression life cycle.
[ ] [ ] [ ] [ ]
[Cyclogenesis] [Developped] [Occlusion] [Frontolysis]
When considering mountain waves (MTW), how far and how high can the effects reach when they originate in the Rocky Mountains, USA?
a.By the same dimensions of the affecting mountain
b.Up to the tropopause and horizontally as far as the mountains extend
c.Up to 36000ft and approximately 300 nm downwind of the range
d.Up to the tropopause and 600 nm downwind of the range
d.Up to the tropopause and 600 nm downwind of the range
An explicit hazard of icing caused by freezing rain on the aerofoil of an aircraft is the
a.formation of a very thin layer of icing mixed with rain that can remain unnoticed
b.potential accretion of ice aft of the area equipped with ice-protection
c.accretion of ice on the elevator due to the slipstream from the flaps
d.ailerons freezing at the outer ends of the wing
b.potential accretion of ice aft of the area equipped with ice-protection
