Exam quiz Meteorology - EASA PPL(A) - Private Pilot License

Question 1

What is meant by "inversion layer"?

Accepted Answer

An atmospheric layer where temperature increases with increasing height

Answer

An atmospheric layer where temperature decreases with increasing height

Answer

A boundary area between two other layers within the atmosphere

Answer

An atmospheric layer with constant temperature with increasing height

Question 2

Which processes result in decreasing air density?

Accepted Answer

Increasing temperature, decreasing pressure

Answer

Decreasing temperature, increasing pressure

Answer

Increasing temperature, increasing pressure

Answer

Decreasing temperature, decreasing pressure

Question 3

Winds blowing uphill are defined as...

Accepted Answer

Anabatic winds.

Answer

Katabatic winds.

Answer

Convergent winds.

Answer

Subsident winds.

Question 4

The saturated adiabatic lapse rate is...

Accepted Answer

Lower than the dry adiabatic lapse rate.

Answer

Proportional to the dry adiabatic lapse rate.

Answer

Higher than the dry adiabatic lapse rate.

Answer

Equal to the dry adiabatic lapse rate.

Question 5

The term "tropopause" is defined as...

Accepted Answer

The boundary area between the troposphere and the stratosphere.

Answer

The layer above the troposphere showing an increasing temperature.

Answer

The boundary area between the mesosphere and the stratosphere.

Answer

The height above which the temperature starts to decrease.

Question 6

Which of the following conditions are most favourable for ice accretion?

Accepted Answer

Temperatures between 0° C and -12° C, presence of supercooled water droplets (clouds)

Answer

Temperatures below 0° C, strong wind, sky clear of clouds

Answer

Temperatures between +10° C and -30° C, presence of hail (clouds)

Answer

Temperatures between -20° C and -40° C, presence of ice crystals (Ci clouds)

Question 7

Above the friction layer, with a prevailing pressure gradient, the wind direction is...

Accepted Answer

Parallel to the isobars.

Answer

Perpendicular to the isohypses.

Answer

At an angle of 30° to the isobars towards low pressure.

Answer

Perpendicular to the isobars.

Question 8

The dry adiabatic lapse rate has a value of...

Accepted Answer

1,0° C / 100 m.

Answer

2° / 1000 ft.

Answer

0,6° C / 100 m.

Answer

0,65° C / 100 m.

Question 9

The barometric altimeter indicates height above...

Accepted Answer

A selected reference pressure level.

Answer

Mean sea level.

Answer

Standard pressure 1013.25 hPa.

Answer

Ground.

Question 10

The symbol labeled (1) as shown in the picture is a / an... See figure (MET-005)

Accepted Answer

Cold front.

Answer

Front aloft.

Answer

Occlusion.

Answer

Warm front.

Question 11

The symbol labeled (2) as shown in the picture is a / an... See figure (MET-005)

Accepted Answer

Warm front.

Answer

Front aloft.

Answer

Cold front.

Answer

Occlusion.

Question 12

What cloud sequence can typically be observed during the passage of a warm front?

Accepted Answer

Cirrus, thickening altostratus and altocumulus clouds, lowering cloud base with rain, nimbostratus

Answer

In coastal areas during daytime wind from the coast and forming of cumulus clouds, dissipation of clouds during evening and night

Answer

Wind becoming calm, dissipation of clouds and warming during summer; formation of extended high fog layers during winter

Answer

Squall line with showers of rain and thunderstorms (Cb), gusting wind followed by cumulus clouds with isolated showers of rain

Question 13

What cloud type does the picture show? See figure (MET-002).

Accepted Answer

Cumulus

Answer

Stratus

Answer

Altus

Answer

Cirrus

Question 14

Which conditions are likely for the formation of advection fog?

Accepted Answer

Warm, humid air moves over a cold surface

Answer

Cold, humid air moves over a warm ocean

Answer

Warm, humid air cools during a cloudy night

Answer

Humidity evaporates from warm, humid ground into cold air

Question 15

Moderate to severe turbulence has to be expected...

Accepted Answer

On the lee side of a mountain range when rotor clouds are present.

Answer

With the appearance of extended low stratus clouds (high fog).

Answer

Overhead unbroken cloud layers.

Answer

Below thick cloud layers on the windward side of a mountain range.

Question 16

Winds blowing downhill are defined as...

Accepted Answer

Katabatic winds.

Answer

Anabatic winds.

Answer

Convergent winds.

Answer

Subsident winds.

Question 17

What visual flight conditions can be expected within the warm sector of a polar front low during summer time?

Accepted Answer

Moderate to good visibility, scattered clouds

Answer

Visibility less than 1000 m, cloud-covered ground

Answer

Good visibility, some isolated high clouds

Answer

Moderate visibility, heavy showers and thunderstorms

Question 18

Which of the stated surfaces will reduce the wind speed most due to ground friction?

Accepted Answer

Mountainous areas, vegetation cover

Answer

Flat land, deserted land, no vegetation

Answer

Oceanic areas

Answer

Flat land, lots of vegetation cover

Question 19

With regard to global circulation within the atmosphere, where does polar cold air meet subtropical warm air?

Accepted Answer

At the polar front

Answer

At the equator

Answer

At the geographic poles

Answer

At the subtropical high pressure belt

Question 20

What danger is most imminent during an approach to an airfield situated in a valley, with strong wind aloft blowing perpendicular to the mountain ridge?

Accepted Answer

Wind shear during descent, wind direction may change by 180°

Answer

Reduced visibility, maybe loss of sight to the airfield during final approach

Answer

Formation of medium to heavy clear ice on all aircraft surfaces

Answer

Heavy downdrafts within rainfall areas below thunderstorm clouds

Question 21

What process causes latent heat being released into the upper troposphere?

Accepted Answer

Cloud forming due to condensation

Answer

Descending air across widespread areas

Answer

Stabilisation of inflowing air masses

Answer

Evaporation over widespread water areas

Question 22

What change of wind direction can be expected during the passage of a polar front low in Central Europe?

Accepted Answer

Veering wind during passage of the warm front, veering wind during passage of the cold front

Answer

Backing wind during passage of the warm front, veering wind during passage of the cold front

Answer

Backing wind during passage of the warm front, backing wind during passage of the cold front

Answer

Veering wind during passage of the warm front, backing wind during passage of the cold front

Question 23

The pressure which is measured at a ground station and reduced to mean sea level (MSL) by means of the actual atmospheric conditions is called...

Accepted Answer

QFF

Answer

QNH

Answer

QNE

Answer

QFE

Question 24

What situation is called "over-development" in a weather report?

Accepted Answer

Vertical development of Cumulus clouds to rain showers

Answer

Widespread spreading of Cumulus clouds below an inversion layer

Answer

Change from blue thermals to cloudy thermals during the afternoon

Answer

Development of a thermal low to a storm depression

Question 25

What weather phenomena have to be expected around an upper-level trough?

Accepted Answer

Development of showers and thunderstorms (Cb)

Answer

Calm wind, forming of shallow cumulus clouds

Answer

Calm weather, formation of lifted fog layers

Answer

Formation of high stratus clouds, ground-covering cloud bases

Question 26

How can wind speed and wind direction be derived from surface weather charts?

Accepted Answer

By alignment and distance of isobaric lines

Answer

By alignment and distance of hypsometric lines

Answer

By alignment of lines of warm- and cold fronts

Answer

By annotations from the text part of the chart

Question 27

What chart shows areas of precipitation?

Accepted Answer

Radar picture

Answer

GAFOR

Answer

Wind chart

Answer

Satellite picture

Question 28

What conditions are favourable for the formation of thunderstorms?

Accepted Answer

Warm humid air, conditionally unstable environmental lapse rate

Answer

Calm winds and cold air, overcast cloud cover with St or As

Answer

Clear night over land, cold air and patches of fog

Answer

Warm and dry air, strong inversion layer

Question 29

Light turbulence always has to be expected...

Accepted Answer

Below cumulus clouds due to thermal convection.

Answer

Above cumulus clouds due to thermal convection.

Answer

Below stratiform clouds in medium layers.

Answer

When entering inversions.

Question 30

What frontal line divides subtropical air from polar cold air, in particular across Central Europe?

Accepted Answer

Polar front

Answer

Occlusion

Answer

Cold front

Answer

Warm front

Question 31

When air masses meet each other head on, how is this referred to and what air movements will follow?

Accepted Answer

Convergence resulting in air being lifted

Answer

Convergence resulting in sinking air

Answer

Divergence resulting in sinking air

Answer

Divergence resulting in air being lifted

Question 32

What factors are required for the formation of precipitation in clouds?

Accepted Answer

Moderate to strong updrafts

Answer

High humidity and high temperatures

Answer

The presence of an inversion layer

Answer

Calm winds and intensive sunlight insolation

Question 33

Information about pressure patterns and frontal situation can be found in which chart?

Accepted Answer

Surface weather chart.

Answer

Wind chart.

Answer

Significant Weather Chart (SWC).

Answer

Hypsometric chart.

Question 34

The symbol labeled (3) as shown in the picture is a / an... See figure (MET-005)

Accepted Answer

Occlusion.

Answer

Front aloft.

Answer

Warm front.

Answer

Cold front.

Question 35

What type of turbulence is typically found close to the ground on the lee side during Foehn conditions?

Accepted Answer

Turbulence in rotors

Answer

Inversion turbulence

Answer

Clear-air turbulence (CAT)

Answer

Thermal turbulence

Question 36

What phenomenon is caused by cold air downdrafts with precipitation from a fully developed thunderstorm cloud?

Accepted Answer

Gust front

Answer

Electrical discharge

Answer

Anvil-head top of Cb cloud

Answer

Freezing Rain

Question 37

What cloud type can typically be observed across widespread high pressure areas during summer?

Accepted Answer

Scattered Cu clouds

Answer

Overcast low stratus

Answer

Overcast Ns clouds

Answer

Squall lines and thunderstorms

Question 38

Which of the stated wind phenomena will increase in speed since its path is narrowed by mountains?

Accepted Answer

Mistral

Answer

Bora

Answer

Scirocco

Answer

Passat

Question 39

What process results in the formation of "advection fog"?

Accepted Answer

Warm, moist air is moved across cold ground areas

Answer

Cold, moist air is being moved across warm ground areas

Answer

Cold, moist air mixes with warm, moist air

Answer

Prolonged radiation during nights clear of clouds

Question 40

What is the usual direction of movement of a polar front low?

Accepted Answer

Parallel to the warm-sector isobars

Answer

To the northwest during winter, to the southwest during summer

Answer

To the northeast during winter, to the southeast during summer

Answer

Parallel to the warm front line to the south

Question 41

"Foehn" conditions usually develop with...

Accepted Answer

Stability, widespread air blown against a mountain ridge.

Answer

Instability, widespread air blown against a mountain ridge.

Answer

Instability, high pressure area with calm wind.

Answer

Stability, high pressure area with calm wind.

Question 42

Which weather chart shows the actual air pressure as in MSL along with pressure centers and fronts?

Accepted Answer

Surface weather chart

Answer

Hypsometric chart

Answer

Prognostic chart

Answer

Wind chart

Question 43

The character of an air mass is given by what properties?

Accepted Answer

Region of origin and track during movement

Answer

Temperatures at origin and present region

Answer

Wind speed and tropopause height

Answer

Environmental lapse rate at origin

Question 44

The movement of air flowing together is called...

Accepted Answer

Convergence

Answer

Divergence

Answer

Confluence

Answer

Subsidence

Question 45

What wind is reported as 225/15 ?

Accepted Answer

South-west wind with 15 kt

Answer

North-east wind with 15 kt

Answer

South-west wind with 15 km/h

Answer

North-east wind with 15 km/h

Question 46

Clouds in high layers are referred to as...

Accepted Answer

Cirro-

Answer

Nimbo-.

Answer

Strato-.

Answer

Alto-

Question 47

What temperatures are most dangerous with respect to airframe icing?

Accepted Answer

0° to -12° C

Answer

+5° to -10° C

Answer

-20° to -40° C

Answer

+20° to -5° C

Question 48

In a METAR, "(moderate) showers of rain" are designated by the identifier...

Accepted Answer

SHRA

Answer

+RA

Answer

+TSRA

Answer

TS

Question 49

How does inflowing cold air affect the shape and vertical distance between pressure layers?

Accepted Answer

Decrease in vertical distance, lowering in height (low pressure)

Answer

Increasing vertical distance, raise in height (high pressure)

Answer

Decreasing vertical distance, raise in height (high pressure)

Answer

Increase in vertical distance, lowering in height (low pressure)

Question 50

The barometric altimeter with QFE setting indicates...

Accepted Answer

Height above the pressure level at airfield elevation.

Answer

True altitude above MSL.

Answer

Height above MSL.

Answer

Height above standard pressure 1013.25 hPa.

Question 51

Temperatures will be given by meteorological aviation services in Europe in which unit?

Accepted Answer

Degrees Centigrade (° C)

Answer

Kelvin

Answer

Gpdam

Answer

Degrees Fahrenheit

Question 52

What information is NOT found on Low-Level Significant Weather Charts (LLSWC)?

Accepted Answer

Radar echos of precipitation

Answer

Information about icing conditions

Answer

Information about turbulence areas

Answer

Front lines and frontal displacements

Question 53

The barometric altimeter with QNH setting indicates...

Accepted Answer

Height above MSL.

Answer

Height above standard pressure 1013.25 hPa.

Answer

Height above the pressure level at airfield elevation.

Answer

True altitude above MSL.

Question 54

What can be expected for the prevailing wind with isobars on a surface weather chart showing large distances?

Accepted Answer

Low pressure gradients resulting in low prevailing wind

Answer

Strong pressure gradients resulting in strong prevailing wind

Answer

Strong pressure gradients resulting in low prevailing wind

Answer

Low pressure gradients resulting in strong prevailing wind

Question 55

The movement of air flowing apart is called...

Accepted Answer

Divergence

Answer

Convergence

Answer

Concordance

Answer

Subsidence

Question 56

In a METAR, "heavy rain" is designated by the identifier...

Accepted Answer

+RA

Answer

RA

Answer

+SHRA

Answer

SHRA

Question 57

What process results in the formation of "orographic fog" ("hill fog")?

Accepted Answer

Warm, moist air is moved across a hill or a mountain range

Answer

Prolonged radiation during nights clear of clouds

Answer

Cold, moist air mixes with warm, moist air

Answer

Evaporation from warm, moist ground area into very cold air

Question 58

What visual flight conditions can be expected after the passage of a cold front?

Accepted Answer

Good visibility, formation of cumulus clouds with showers of rain or snow

Answer

Scattered cloud layers, visibility more than 5 km, formation of shallow cumulus clouds

Answer

Medium visibility with lowering cloud bases, onset of prolonged precipitation

Answer

Poor visibility, formation of overcast or ground-covering stratus clouds, snow

Question 59

The height of the tropopause of the International Standard Atmosphere (ISA) is at...

Accepted Answer

36000 ft.

Answer

5500 ft.

Answer

11000 ft.

Answer

48000 ft.

Question 60

What weather phenomenon designated by "2" has to be expected on the lee side during "Foehn" conditions? See figure (MET-001).

Accepted Answer

Altocumulus lenticularis

Answer

Altocumulus Castellanus

Answer

Nimbostratus

Answer

Cumulonimbus

Question 61

What is referred to as mountain wind?

Accepted Answer

Wind blowing down the mountain side during the night

Answer

Wind blowing uphill from the valley during daytime

Answer

Wind blowing uphill from the valley during the night

Answer

Wind blowing down the mountain side during daytime.

Question 62

What is the name of the cold, katabatic wind phenomena blowing from northeast into the Adriatic Sea?

Accepted Answer

Bora

Answer

Scirocco

Answer

Mistral

Answer

Passat

Question 63

What clouds and weather may result from a humid and unstable air mass, that is pushed against a chain of mountains by the predominant wind and forced to rise?

Accepted Answer

Embedded CB with thunderstorms and showers of hail and/or rain.

Answer

Thin Altostratus and Cirrostratus clouds with light and steady precipitation.

Answer

Overcast low stratus (high fog) with no precipitation.

Answer

Smooth, unstructured NS cloud with light drizzle or snow (during winter).

Question 64

What are the air masses that Central Europe is mainly influenced by?

Accepted Answer

Polar cold air and tropical warm air

Answer

Arctic and polar cold air

Answer

Equatorial and tropical warm air

Answer

Tropical and arctic cold air

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