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

Question 1

The movement of air flowing apart is called...

Accepted Answer

Divergence

Answer

Convergence

Answer

Concordence

Answer

Subsidence

Question 2

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 3

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 4

What situation may result in the occurrence of severe wind shear?

Accepted Answer

When a shower is visible close to the airfield

Answer

Flying ahead of a warm front with visible Ci clouds

Answer

Cross-country flying below Cu clouds with about 4 octas coverage

Answer

During final approach, 30 min after a heavy shower has passed the airfield

Question 5

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 6

The movement of air flowing together is called...

Accepted Answer

Convergence

Answer

Divergence

Answer

Soncordence

Answer

Subsidence

Question 7

What has to be considered when taking off in a ground inversion?

Accepted Answer

During climb, a sudden decrease in speed and climb performance has to be expected

Answer

Climb should be performed with the lowest possible speed and maximum power

Answer

Due to low temperatures close to the ground, icing has to be expected

Answer

During the climb, a sudden increase in speed and climb performance has to be expected

Question 8

The symbol labeled (1) as shown in the picture is a / an... See figure (MET-005) (1,00 P.) Siehe Anlage 4

Accepted Answer

Cold front.

Answer

Front aloft.

Answer

Occlusion

Answer

Warm front

Question 9

What weather development will result from convergence at ground level?

Accepted Answer

Ascending air and cloud formation

Answer

Descending air and cloud formation

Answer

Ascending air and cloud dissipation

Answer

Descending air and cloud dissipation

Question 10

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 11

What weather phenomenon designated by "2" has to be expected on the lee side during "Foehn" conditions? See figure (MET-001). Siehe Anlage 1

Accepted Answer

Altocumulus lenticularis

Answer

Altocumulus Castellanus

Answer

Nimbostratus

Answer

Cumulonimbus

Question 12

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 13

What clouds and weather may result from an humid and instable 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 14

What weather conditions can be expected during "Foehn" on the windward side of a mountain range?

Accepted Answer

Layered clouds, mountains obscured, poor visibility, moderate or heavy rain

Answer

Dissipating clouds with unusual warming, accompanied by strong, gusty winds

Answer

Scattered cumulus clouds with showers and thunderstorms

Answer

Calm wind and forming of high stratus clouds (high fog)

Question 15

The formation of medium to large precipitation particles requires...

Accepted Answer

Strong updrafts.

Answer

A high cloud base.

Answer

Strong wind.

Answer

An inversion layer.

Question 16

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 17

Clouds are basically distinguished by what types?

Accepted Answer

Cumulus and stratiform clouds

Answer

Stratiform and ice clouds

Answer

Layered and lifted clouds

Answer

Thunderstorm and shower clouds

Question 18

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 visibilty, 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 19

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 20

What is the mass of a "cube of air" with the edges 1 m long, at MSL according ISA?

Accepted Answer

1,225 kg

Answer

0,01225 kg

Answer

0,1225 kg

Answer

12,25 kg

Question 21

A boundary between a cold polar air mass and a warm subtropical air mass showing no horizontal displacement is called...

Accepted Answer

Stationary front.

Answer

Cold front

Answer

Warm front.

Answer

Occluded front.

Question 22

What condition may prevent the formation of "radiation fog"?

Accepted Answer

Overcast cloud cover

Answer

Calm wind

Answer

Low spread

Answer

Clear night, no clouds

Question 23

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 24

How does air temperatur change in ISA from MSL to approx. 10.000 m height?

Accepted Answer

From +15° to -50°C

Answer

From +20° to -40°C

Answer

From +30° to -40°C

Answer

From -15° to 50°C

Question 25

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 26

Heavy downdrafts and strong wind shear close to the ground can be expected...

Accepted Answer

Near the rainfall areas of heavy showers or thunderstorms

Answer

During cold, clear nights with the formation of radiation fog

Answer

During approach to an airfield at the coast with a strong sea breeze

Answer

During warm summer days with high, flatted Cu clouds.

Question 27

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 28

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 29

Which process may result in an inversion layer at about 5000 ft (1500 m) height?

Accepted Answer

Widespread descending air within a high pressure area

Answer

Intensive sunlight insolation during a warm summer day

Answer

Ground cooling by radiation during the night

Answer

Advection of cool air in the upper troposphere

Question 30

What pressure pattern can be observed when a cold front is passing?

Accepted Answer

Shortly decreasing, thereafter increasing pressure

Answer

Continually decreasing pressure

Answer

Continually increasing pressure

Answer

Constant pressure pattern

Question 31

How do dew point and relative humidity change with decreasing temperature?

Accepted Answer

Dew point remains constant, relative humidity increases

Answer

Dew point remains constant, relative humidity decreases

Answer

Dew point decreases, relative humidity increases

Answer

Dew point increases, relative humidity decreases

Question 32

What chart shows areas of precipitation?

Accepted Answer

Radar picture

Answer

GAFOR

Answer

Wind chart

Answer

Satellite picture

Question 33

What pressure pattern may result from cold-air inflow in high tropospheric layers?

Accepted Answer

Formation of a low in the upper troposphere

Answer

Formation of a high in the upper troposphere

Answer

Formation of a large ground low

Answer

Alternating pressure

Question 34

What cloud type does the picture show? See figure (MET-004).Siehe Anlage 3

Accepted Answer

Cirrus

Answer

Altocumulus

Answer

Cumulus

Answer

Stratus

Question 35

"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 36

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

Accepted Answer

Low pressure gradients resulting in low prevailling wind

Answer

Strong pressure gradients resulting in strong prevailling wind

Answer

Strong pressure gradients resulting in low prevailling wind

Answer

Low pressure gradients resulting in strong prevailling wind

Question 37

What is the gas composition of "air"?

Accepted Answer

Oxygen 21 % Nitrogen 78 % Noble gases / carbon dioxide 1 %

Answer

Oxygen 21 % Water vapour 78 % Noble gases / carbon dioxide 1 %

Answer

Oxygen 78 % Water vapour 21 % Nitrogen 1 %

Answer

Nitrogen 21 % Oxygen 78 % Noble gases / carbon dioxide 1 %

Question 38

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 39

What pressure pattern can be observed during the passage of a polar front low?

Accepted Answer

Falling pressure in front of the warm front, constant pressure within the warm sector, rising pressure behind the cold front

Answer

Rising pressure in front of the warm front, constant pressure within the warm sector, rising pressure behind the cold front

Answer

Falling pressure in front of the warm front, constant pressure within the warm sector, falling pressure behind the cold front

Answer

Rising pressure in front of the warm front, rising pressure within the warm sector, falling pressure behind the cold front

Question 40

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 41

The saturated adiabatic lapse rate should be assumed with a mean value of:

Accepted Answer

0,6° C / 100 m

Answer

1,0° C / 100 m.

Answer

0° C / 100 m

Answer

2° C / 1000 ft.

Question 42

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 43

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

Accepted Answer

Bora

Answer

Scirocco

Answer

Mistral

Answer

Passat

Question 44

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 45

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 46

What is the ISA standard pressure at FL 180 (5500 m)?

Accepted Answer

500 hPa

Answer

250 hPa

Answer

300 hPa

Answer

1013.25 hPa

Question 47

Which force causes "wind"?

Accepted Answer

Pressure gradient force

Answer

Centrifugal force

Answer

Thermal force

Answer

Coriolis force

Question 48

What weather conditions may be expected during conditionally unstable conditions?

Accepted Answer

Towering cumulus, isolated showers of rain or thunderstorms

Answer

Layered clouds up to high levels, prolonged rain or snow

Answer

Shallow cumulus clouds with base at medium levels

Answer

Sky clear of clouds, sunshine, low winds

Question 49

How is an air mass described when moving to Central Europe via the Russian continent during winter?

Accepted Answer

Continental polar air

Answer

Maritime tropical air

Answer

Continental tropical air

Answer

Maritime polar air

Question 50

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 51

Weather phenomena are most common to be found in which atmospheric layer?

Accepted Answer

Troposphere

Answer

Stratosphere

Answer

Tropopause

Answer

Thermosphere

Question 52

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 53

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

Question 54

What danger is most immenent when an aircraft is hit by lightning?

Accepted Answer

Surface overheat and damage to exposed aircraft parts

Answer

Rapid cabin depressurization and smoke in the cabin

Answer

Explosion of electrical equipment in the cockpit

Answer

Disturbed radio communication, static noise signals

Question 55

What weather conditions can be expected in high pressure areas during winter?

Accepted Answer

Calm winds and widespread areas with high fog

Answer

Changing weather with passing of frontal lines

Answer

Calm weather and cloud dissipation, few high Cu

Answer

Squall lines and thunderstorms

Question 56

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

Accepted Answer

SHRA

Answer

+RA

Answer

+TSRA

Answer

TS

Question 57

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 58

Mountain side updrafts can be intensified by ...

Accepted Answer

Solar irradiation on the windward side

Answer

Solar irradiation on the lee side

Answer

By warming of upper atmospheric layers

Answer

Thermal radiation of the windward side during the night

Question 59

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

Visibilty less than 1000 m, cloud-covered ground

Answer

Good visibility, some isolated high clouds

Answer

Moderate visibility, heavy showers and thunderstorms

Question 60

Air descending behind a mountain range is defined as...

Accepted Answer

Katabatic wind

Answer

Convergent wind.

Answer

Anabatic wind.

Answer

Divergent wind.

Question 61

Weather and operational information about the destination aerodrome can be obtained during the flight by...

Accepted Answer

ATIS

Answer

VOLMET

Answer

PIREP

Answer

SIGMET

Question 62

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 63

What weather conditions in Central Europe are typically found in high pressure areas during summer?

Accepted Answer

Large isobar spacing with calm winds, formation of local wind systems

Answer

Large isobar spacing with strong prevailing westerly winds

Answer

Small isobar spacing with calm winds, formation of local wind systems

Answer

Small isobar spacing with strong prevailing northerly winds

Question 64

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

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