NEW
Font size
Worksheetsmet-atmosphere FQ
Total questions: 24
Worksheet time: 12mins
How does the height of the tropopause normally vary with latitude in the
Northern Hemisphere?
increases from south to north
It remains constant throughout the year
It decreases from south to north
It remains constant from north to south
A temperature of +15°C is recorded at an altitude of 500 metres above mean
sea level. If the vertical
temperature gradient is that of a standard atmosphere, what will be the
temperature at the summit
of a mountain 2500 metres above mean sea level?
-2°C
+4°C
+2°C
0°C
What, approximately, is the average height of the tropopause over the
Equator?
8 km
16 km
11 Km
50 Km
In relation to the total weight of the atmosphere, the weight of the
atmosphere
between mean sea level and a height of 5500 m is approximately:
99%
50%
25%
1%
In the International Standard Atmosphere the decrease in temperature with
height
below 11 km is:
1°C/100 m
0.65°/100 m
0.6°C/100 m
0.5°C/100 m
In the mid-latitudes the stratosphere extends on average from:
0 to 11 km
11 to 50 km
50 to 85 km
11 to 20 km
The 200 hPa pressure altitude level can vary in height. In temperate regions
which
of the following average heights is applicable?
FL300
FL50
FL100
FL390
The international standard atmosphere (ISA) assumes that the temperature
will reduce at a rate of:
1.98°C per 1000 feet up to 36 090 feet and then will rise at 0.3°C per 1000
feet up to 65 617 feet
1.98°C per 1000 feet up to 36 090 feet after which it remains constant
to 65 617 feet
2°C per 1000 feet up to 65 617 feet after which it will remain constant to 104
987 feet
2°C per 1000 feet up to 36 090 feet and will then increase at 0.3°C per 1000
feet up to 65 617 feet
The temperature at FL110 is -12°C. What will the temperature be at FL140 if
the
ICAO standard lapse rate is applied?
-15°C
-6°C
-18°C
-9°C
Between mean sea level and a height of 20 km the lowest temperature in
the international standard
atmosphere (ISA) is:
-56.5°C
-273°C
-100°C
-44.7°C
At a certain position the temperature on the 300 hPa chart is -54°C, and
according to the significant
weather chart the tropopause is at FL330. What is the most likely
temperature at FL350?
-48°C
-56.5°C
-60°C
-64°C
The average height of the tropopause at a latitude of 50° is about:
8 km
11 km
14 km
16 km
What is the boundary between the troposphere and the stratosphere called?
Atmosphere
Stratosphere
Tropopause
Ionosphere
What is the most important constituent in the atmosphere from a weather
standpoint?
Methane
Carbon dioxide
Water vapour
Oxygen
Which constant pressure altitude chart is standard for 4781 ft pressure level
(FL50)?
500 hPa
850 hPa
300 hPa
700 hPa
If you are flying at FL140 and the outside temperature is -8°C at what
altitude will the freezing level be?
FL75
FL100
FL130
FL180
An outside air temperature of -30°C is measured whilst cruising at FL200.
What is
the temperature deviation from the ISA at this level?
5°C warmer than ISA
5°C colder than ISA
10°C warmer than ISA
10°C colder than ISA
If you are flying at FL300 in an air mass that is 15°C warmer than a standard
atmosphere what is the outside
temperature likely to be?
-60°C
-45°C
-30°C
-15°C
What is the most likely temperature at the tropical tropopause?
-56.5°C
-40°C
-75°C
-25°C
How would you characterize an air temperature of -15°C at the 700 hPa level
over western Europe?
Within +/-5°C of ISA
20°C below standard
Low
High
Which one of the following statements applies to the tropopause?
It is, by definition, an isothermal layer
It indicates a strong temperature lapse rate
It is, by definition a temperature inversion
It separates the troposphere from the stratosphere
How does temperature vary with increasing altitude in the ICAO standard
atmosphere below thetropopause?
Decreases
Remains constant
Increases
At first it increases and higher up it decreases
In the lower part of the stratosphere the temperature:
decreases with altitude
is almost constant
increases at first and decreases afterwards
increases with altitude
What is the approximate composition of the dry air by volume in the
troposphere?
10% oxygen, 89% nitrogen and the rest other gases
88% oxygen, 9% nitrogen and the rest other gases
50% oxygen, 40% nitrogen and the rest other gases
21% oxygen, 78% nitrogen and the rest other gases
