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

Question 1

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 2

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

Accepted Answer

Overcast cloud cover

Answer

Low spread

Answer

Calm wind

Answer

Clear night, no clouds

Question 3

The altimeter can be checked on the ground by setting...

Accepted Answer

QNH and comparing the indication with the airfield elevation.

Answer

QNE and checking that the indication shows zero on the ground.

Answer

QFF and comparing the indication with the airfield elevation.

Answer

QFE and comparing the indication with the airfield elevation.

Question 4

What is referred to as mountain wind?

Accepted Answer

Wind blowing down the mountain side during the night

Answer

Wind blowing down the mountain side during daytime.

Answer

Wind blowing uphill from the valley during daytime.

Answer

Wind blowing uphill from the valley during the night.

Question 5

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

Accepted Answer

Dew point remains constant, relative humidity increases

Answer

Dew point decreases, relative humidity increases

Answer

Dew point increases, relative humidity decreases

Answer

Dew point remains constant, relative humidity decreases

Question 6

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

Answer

During warm summer days with high, flatted Cu clouds.

Answer

During cold, clear nights with the formation of radiation fog.

Question 7

What temperatures are most dangerous with respect to airframe icing?

Accepted Answer

0° to -12° C

Answer

.+20° to -5° C

Answer

.+5° to -10° C

Answer

.-20° to -40° C

Question 8

Measured pressure distribution in MSL and corresponding frontal systems are displayed by the...

Accepted Answer

Surface weather chart.

Answer

Hypsometric chart

Answer

Prognostic chart.

Answer

Significant Weather Chart (SWC).

Question 9

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 10

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

Accepted Answer

Mistral

Answer

Scirocco

Answer

Bora

Answer

Passat

Question 11

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 12

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

QFE.

Answer

QNE

Answer

QNH.

Question 13

What clouds and weather can typically be observed during the passage of a cold front?

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 14

Clouds in high layers are referred to as...

Accepted Answer

Cirro-.

Answer

Nimbo-.

Answer

Strato-.

Answer

Alto-.

Question 15

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

Accepted Answer

From +15° to -50°C

Answer

From +30° to -40°C

Answer

From +20° to -40°C

Answer

From -15° to 50°C

Question 16

How do spread and relative humidity change with increasing temperature?

Accepted Answer

Spread increases, relative humidity decreases

Answer

Spread remains constant, relative humidity increases

Answer

Spread increases, relative humidity increases

Answer

Spread remains constant, relative humidity decreases

Question 17

Which processes result in decreasing air density?

Accepted Answer

Increasing temperature, decreasing pressure

Answer

Increasing temperature, increasing pressure

Answer

Decreasing temperature, decreasing pressure

Answer

Decreasing temperature, increasing pressure

Question 18

Extensive high pressure areas can be found throughout the year ...

Accepted Answer

Over oceanic areas at latitues around 30°N/S.

Answer

In areeas showing extensive lifting processes.

Answer

In tropical areas, close to the equator.

Answer

In mid latitudes along the polar front

Question 19

At what rate does the temperature change with increasing height according to ISA (ICAO Standard Atmosphere) within the troposphere?

Accepted Answer

Decreases by 2° C / 1000 ft

Answer

Decreases by 2° C / 100 m

Answer

Increases by 2° C / 100 m

Answer

Increases by 2° C / 1000 ft

Question 20

What information can be obtained from satallite images?

Accepted Answer

Overview of cloud covers and front lines

Answer

Turbulence and icing

Answer

Flight visibility, ground visibility, and ground contact

Answer

Temperature and dew point of environmental air

Question 21

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 22

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

Accepted Answer

Degrees Centigrade (° C)

Answer

Degrees Fahrenheit

Answer

Gpdam

Answer

Kelvin

Question 23

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

Accepted Answer

36000 ft.

Answer

48000 ft.

Answer

5500 ft.

Answer

11000 ft.

Question 24

What chart shows areas of precipitation?

Accepted Answer

Radar picture

Answer

Satellite picture

Answer

GAFOR

Answer

Wind chart

Question 25

What danger arises for a helicopter during flight through a ground inversion in winter?

Accepted Answer

Ice formation below the inversion

Answer

Cloud formation above the inversion

Answer

Baffling wind conditions

Answer

Electrostatic charges

Question 26

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

Disturbed radio communication, static noise signals

Answer

Explosion of electrical equipment in the cockpit

Question 27

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

Accepted Answer

.+RA.

Answer

RA

Answer

SHRA.

Answer

.+SHRA.

Question 28

Mountain side updrafts can be intensified by ...

Accepted Answer

Solar irradiation on the windward side

Answer

By warming of upper atmospheric layers

Answer

Thermal radiation of the windward side during the night

Answer

Solar irradiation on the lee side

Question 29

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

Accepted Answer

At the polar front

Answer

At the geographic poles

Answer

At the subtropical high pressure belt

Answer

At the equator

Question 30

SIGMET warnings are issued for...

Accepted Answer

FIRs / UIRs.

Answer

Specific routings.

Answer

Countries.

Answer

Airports.

Question 31

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 32

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

Warm front

Answer

Occluded front.

Answer

Cold front.

Question 33

What is meant by "isothermal layer"?

Accepted Answer

An atmospheric layer with constant temperature with increasing height

Answer

An atmospheric layer where temperature increases with increasing height

Answer

A boundary area between two other layers within the atmosphere

Answer

An atmospheric layer where temperature decreases with increasing height

Question 34

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

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

Answer

Decreasing vertical distance, raise in height (high pressure)

Answer

Increasing vertical distance, raise in height (high pressure)

Question 35

Winds blowing downhill are defined as...

Accepted Answer

Katabatic winds.

Answer

Subsident winds.

Answer

Anabatic winds.

Answer

Convergent winds.

Question 36

Cold air inflow in high tropospheric layers may result in...

Accepted Answer

Showers and thunderstorms.

Answer

Stabilisation and calm weather.

Answer

Frontal weather.

Answer

Calm weather and cloud dissipation.

Question 37

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 38

"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 39

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

When entering inversions.

Answer

Below stratiform clouds in medium layers.

Question 40

The pressure at MSL in ISA conditions is...

Accepted Answer

1013.25 hPa.

Answer

1123 hPa.

Answer

113.25 hPa.

Answer

15 hPa.

Question 41

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

Accepted Answer

Parallel to the the warm-sector isobars

Answer

To the northeast during winter, to the southeast during summer

Answer

To the northwest during winter, to the southwest during summer

Answer

Parallel to the warm front line to the south

Question 42

The term "tropopause" is defined as...

Accepted Answer

The boundary area between the troposphere and the stratosphere.

Answer

The boundary area between the mesosphere and the stratosphere.

Answer

The height above which the temperature starts to decrease.

Answer

The layer above the troposphere showing an increasing temperature.

Question 43

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

Formation of high stratus clouds, ground-covering cloud bases

Answer

Calm weather, formation of lifted fog layers

Question 44

Moderate to severe turbulence has to be expected...

Accepted Answer

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

Answer

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

Answer

Overhead unbroken cloud layers.

Answer

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

Question 45

Which stage of a thunderstorm is dominated by updrafts?

Accepted Answer

Cumulus stage

Answer

Mature stage

Answer

Upwind stage

Answer

Dissipating stage

Question 46

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

Accepted Answer

By alignment and distance of isobaric lines

Answer

By annotations from the text part of the chart

Answer

By alignment of lines of warm- and cold fronts

Answer

By alignment and distance of hypsometric lines

Question 47

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

Divergence resulting in air being lifted

Answer

Convergence resulting in sinking air

Answer

Divergence resulting in sinking air

Question 48

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

Accepted Answer

Calm weather and cloud dissipation, few high Cu

Answer

Squall lines and thunderstorms

Answer

Changing weather with passing of frontal lines

Answer

Calm winds and widespread areas with high fog

Question 49

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

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

Question 50

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

Accepted Answer

Strong updrafts.

Answer

Strong wind

Answer

A high cloud base.

Answer

An inversion layer.

Question 51

An inversion is a layer ...

Accepted Answer

With increasing temperature with increasing height.

Answer

With increasing pressure with increasing height.

Answer

With decreasing temperature with increasing height

Answer

With constant temperature with increasing height.

Question 52

Which type of ice forms by large, supercooled droplets hitting the front surfaces of an aircraft?

Accepted Answer

Clear ice

Answer

Rime ice

Answer

Hoar frost

Answer

Mixed ice

Question 53

Which type of ice forms by very small water droplets and ice crystals hitting the front surfaces of an aircraft?

Accepted Answer

Rime ice

Answer

Clear ice

Answer

Mixed ice

Answer

Hoar frost

Question 54

What is meant by "inversion layer"?

Accepted Answer

An atmospheric layer where temperature increases with increasing height

Answer

An atmospheric layer with constant temperature with increasing height

Answer

A boundary area between two other layers within the atmosphere

Answer

An atmospheric layer where temperature decreases with increasing height

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

The movement of air flowing apart is called...

Accepted Answer

Divergence.

Answer

Subsidence.

Answer

Concordence.

Answer

Convergence.

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

Evaporation from warm, moist ground area into very cold air

Answer

Prolonged radiation during nights clear of clouds

Answer

Cold, moist air mixes with warm, moist air

Question 58

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

Cumulonimbus

Answer

Altocumulus Castellanus

Answer

Nimbostratus

Question 59

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 60

The movement of air flowing together is called...

Accepted Answer

Convergence.

Answer

Subsidence.

Answer

Divergence.

Answer

Soncordence.

Question 61

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

Accepted Answer

0,6° C / 100 m.

Answer

2° C / 1000 ft.

Answer

1,0° C / 100 m.

Answer

0° C / 100 m.

Question 62

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

Heavy downdrafts within rainfall areas below thunderstorm clouds

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

Question 63

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

Scattered cumulus clouds with showers and thunderstorms

Answer

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

Answer

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

Question 64

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

Exam simulation Meteorology PPL(H) - Private Pilot License

Exam simulation PPL(H) EN Meteorology 120 questions on 120 minutes