3223620
Descripción
Test por mathys1995, actualizado hace más de 1 año
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Creado por mathys1995
hace más de 9 años
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Pregunta 1
Pregunta
Which one of the following statements applies to the tropopause?
Respuesta
-
It is, by definition, an isothermal layer.
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It indicates a strong temperature lapse rate.
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It is, by definition, a temperature inversion.
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It separates the troposphere from the stratosphere.
Pregunta 2
Pregunta
At a certain position, the temperature on the 300 hPa chart is -48°C; according to the tropopause chart, the tropopause is at FL330. What is the most likely temperature at FL350?
Respuesta
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-54°C
-
-50°C
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-56.5°C
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-58°C
Pregunta 3
Pregunta
The tropopause is lower...
Respuesta
-
south of the equator than north of it.
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over the equator than over the South Pole.
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over the North Pole than over the equator.
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in summer than winter in moderate latitudes.
Pregunta 4
Pregunta
What is the most likely temperature at the tropical tropopause?
Respuesta
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-55°C
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-35°C
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-25°C
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-75°C
Pregunta 5
Pregunta
Which statement is correct regarding the International Standard Atmosphere?
Respuesta
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At MSL temperature is 15°C and the decrease in temperature with height is 1°C per 100m.
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At MSL temperature is 10°C and the decrease in temperature with height is 1°C per 100m.
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At MSL pressure is 1013.25 hPa and the decrease of temperature with height is 1°C per 100m.
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At MSL temperature is 15°C and pressure is 1013.25hPa.
Pregunta 6
Pregunta
The tropopause is a level at which...
Respuesta
-
water vapour content is greatest.
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pressure remains constant.
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vertical currents are strongest.
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temperature ceases to fall with increasing height.
Pregunta 7
Pregunta
The 0°C isotherm is forecast to be at FL050. At what FL would you expect a temperature of -6°C?
Respuesta
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FL080
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FL020
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FL100
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FL110
Pregunta 8
Pregunta
How does temperature vary with increasing altitude in the ICAO standard atmosphere below the tropopause?
Respuesta
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It increases.
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At first it increases and higher up it decreases.
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It remains constant.
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It decreases.
Pregunta 9
Pregunta
Which is true of the temperature at the tropopause?
Respuesta
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It is higher in polar regions than in equatorial regions.
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It is higher in equatorial regions than in polar regions.
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It is highest in middle latitudes.
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There is no significant difference with change of latitude.
Pregunta 10
Pregunta
What is the boundary layer between troposphere and stratosphere called?
Respuesta
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Tropopause
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Ionosphere
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Stratosphere
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Atmosphere
Pregunta 11
Pregunta
How would you characterise an air temperature of -15°C at the 700hPa level over Western Europe?
Respuesta
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Low
-
High
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Within +/-5°C of ISA
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20°C below standard
Pregunta 12
Pregunta
The temperature at FL110 is -5°C. What will the temperature be at FL050 if the ICAO standard lapse rate is applied?
Respuesta
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+3°C
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0°C
-
-3°C
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+7°C
Pregunta 13
Pregunta
How does the height of the tropopause normally vary with latitude in the northern hemisphere?
Respuesta
-
It remains constant throughout the year.
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It decreases from south to north.
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It remains constant from north to south.
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It increases from south to north.
Pregunta 14
Pregunta
The temperature at FL080 is +6°C. What will the temperature be at FL130 if the ICAO standard lapse rate is applied?
Respuesta
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+2°C
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-4°C
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-6°C
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0°C
Pregunta 15
Pregunta
What is the lowest assumed temperature in the ICAO Standard Atmosphere?
Respuesta
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-273°C
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-44.7°C
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-100°C
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-56.5°C
Pregunta 16
Pregunta
The troposphere is the...
Respuesta
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part of the atmosphere below the tropopause.
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part of the atmosphere above the stratosphere.
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boundary between the mesosphere and thermosphere.
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boundary between the stratosphere and the mesosphere.
Pregunta 17
Pregunta
How would you characterise an air temperature of -55°C at the 200hPa level over Western Europe?
Respuesta
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Within +/-5°C of ISA
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High
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Low
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Very high
Pregunta 18
Pregunta
The height and the temperature of the tropopause are respectively in the order of...
Respuesta
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8 km and -40°C over the equator.
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8 km and - 75°C over the poles.
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16 km and -40°C over the poles.
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16 km and -75°C over the equator.
Pregunta 19
Pregunta
What of the following is the most important constituent in the atmosphere from a weather stand-point?
Respuesta
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Nitrogen
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Oxygen
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Hydrogen
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Water vapour
Pregunta 20
Pregunta
What is the vertical temperature lapse rate, up to 11km, in the ICAO standard atmosphere?
Respuesta
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6.5°C per 1000m
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4.5°C per 1000m
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3°C per 1000m
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2°C per 1000m
Pregunta 21
Pregunta
An outside air temperature of -35°C is measured while cruising at FL200. What is the temperature deviation from the ISA at this level?
Respuesta
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10°C warmer than ISA
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5°C warmer than ISA
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5°C colder than ISA
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10°C colder than ISA
Pregunta 22
Pregunta
How would you characterise an air temperature of -30°C at the 300hPa level over Western Europe?
Respuesta
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Within +/-5°C of ISA
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Low
-
Very low
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High
Pregunta 23
Pregunta
What is the rate of decrease of temperature with height per 100m in the International Standard Atmosphere?
Respuesta
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0.65°C
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1°C
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0.5°C
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Variable
Pregunta 24
Pregunta
What is the approximate composition of the dry air by volume in the troposphere?
Respuesta
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50% oxygen, 40% nitrogen, and the rest other gasses
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21% oxygen, 78% nitrogen, and the rest other gasses
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10% oxygen, 89% nitrogen, and the rest other gasses
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88% oxygen, 9% nitrogen, and the rest other gasses
Pregunta 25
Pregunta
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?
Respuesta
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-15°C
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-30°C
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-45°C
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-60°C
Pregunta 26
Pregunta
A temperature of +15°C is recorded at an altitude of 500m above sea level. If the vertical temperature gradient is that of a standard atmosphere, what will the temperature be at the summit of a mountain, 2500m above sea level?
Respuesta
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+4°C
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0°C
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-2°C
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+2°C
Pregunta 27
Pregunta
The temperature at FL140 is -12°C. What will the temperature be at FL110 if the ICAO standard lapse rate is applied?
Respuesta
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-15°C
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-6°C
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-18°C
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-9°C
Pregunta 28
Pregunta
If you are flying at FL120 and the outside temperature is -2°C, at what altitude will the "freezing level" be?
Respuesta
-
FL150
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FL090
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FL110
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FL130
Pregunta 29
Pregunta
The troposphere...
Respuesta
-
reaches the same height at all latitudes.
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has a greater vertical extent above the equator than above the poles.
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contains all oxygen of the stratosphere.
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is the separation layer between the stratosphere and atmosphere.
Pregunta 30
Pregunta
The thickness of the troposphere varies with...
Respuesta
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rotation of the Earth.
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the wind.
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latitude.
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longitude.
Pregunta 31
Pregunta
What, approximately, is the average height of the tropopause over the equator?
Respuesta
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16km
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8km
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11km
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40km
Pregunta 32
Pregunta
Going from the equator to the North Pole, the altitude of the tropopause...
Respuesta
-
decreases and its temperature increases.
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increases and its temperature increases.
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increases and its temperature decreases.
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decreases and its temperature decreases.
Pregunta 33
Pregunta
What is the temperature at 10,000ft in the International Standard Atmosphere?
Respuesta
-
-20°C
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-35°C
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-5°C
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0°C
Pregunta 34
Pregunta
What, approximately, is the average height of the tropopause at 50°N?
Respuesta
-
14km
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16km
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11km
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8km
Pregunta 35
Pregunta
In the lower part of the stratosphere, the temperature...
Respuesta
-
increases with altitude.
-
increases at first and decreases afterward.
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is almost constant.
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decreases with altitude.
Pregunta 36
Pregunta
Which layer of the atmosphere contains more than 90% of all water vapour?
Respuesta
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Troposphere
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Lower stratosphere
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Upper stratosphere
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Ionosphere
Pregunta 37
Pregunta
In the mid-latitudes the stratosphere extends on an average from...
Respuesta
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85 to more than 200km.
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11 to 50km.
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0 to 11km.
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50 to 85km.
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