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

Question 1

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 2

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 3

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 4

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 5

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 6

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 7

The "spread" is defined as...

Accepted Answer

Difference between actual temperature and dew point.

Answer

Relation of actual to maximum possible humidity of air.

Answer

Maximum amount of water vapour that can be contained in air.

Answer

Difference between dew point and condensation point.

Question 8

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

Accepted Answer

Surface weather chart.

Answer

Prognostic chart.

Answer

Significant Weather Chart (SWC)

Answer

Hypsometric chart.

Question 9

Which stage of a thunderstorm is dominated by updrafts?

Accepted Answer

Cumulus stage

Answer

Dissipating stage

Answer

Upwind stage

Answer

Mature stage

Question 10

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 11

What wind conditions can be expected in areas showing large distances between isobars?

Accepted Answer

Variable winds, formation of local wind systems

Answer

Formation of local wind systems with strong prevailing westerly winds

Answer

Strong prevailing easterly winds with rapid backing

Answer

Strong prevailing westerly winds with rapid veering

Question 12

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 13

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 14

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 15

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 16

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 17

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

Accepted Answer

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

Answer

Scattered cloud layers, visbility 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 18

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 19

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

Accepted Answer

Cirrus

Answer

Altocumulus

Answer

Cumulus

Answer

Stratus

Question 20

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 21

What is the mean height of the tropopause according to ISA (ICAO Standard Atmosphere)?

Accepted Answer

11000 m

Answer

18000 ft

Answer

11000 ft

Answer

36000 m

Question 22

Which type of cloud is associated with prolonged rain?

Accepted Answer

Nimbostratus

Answer

Cumulonimbus

Answer

Cirrostratus

Answer

Altocumulus

Question 23

With regard to thunderstorms, strong up- and downdrafts appear during the...

Accepted Answer

Mature stage

Answer

Initial stage.

Answer

Dissipating stage

Answer

Thunderstorm stage.

Question 24

SIGMET warnings are issued for...

Accepted Answer

FIRs / UIRs

Answer

Specific routings.

Answer

Airports

Answer

Countries

Question 25

The temperature lapse rate with increasing height within the troposphere according ISA is...

Accepted Answer

0,65° C / 100 m

Answer

3° C / 100 m.

Answer

1° C / 100 m

Answer

0,6° C / 100 m.

Question 26

The pressure at MSL in ISA conditions is...

Accepted Answer

1013.25 hPa

Answer

113.25 hPa.

Answer

15 hPa.

Answer

1123 hPa.

Question 27

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 28

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 29

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 30

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 31

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 32

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 33

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 34

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 35

Which force causes "wind"?

Accepted Answer

Pressure gradient force

Answer

Centrifugal force

Answer

Thermal force

Answer

Coriolis force

Question 36

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 37

What chart shows areas of precipitation?

Accepted Answer

Radar picture

Answer

GAFOR

Answer

Wind chart

Answer

Satellite picture

Question 38

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 equator

Answer

At the geographic poles

Answer

At the subtropical high pressure belt

Question 39

What weather is likely to be experienced during "Foehn" in the Bavarian area close to the alps?

Accepted Answer

Nimbostratus cloud in the southern alps, rotor clouds at the lee side, warm and dry wind

Answer

High pressure area overhead Biskaya and low pressure area in Eastern Europe

Answer

Cold, humid downhill wind on the lee side of the alps, flat pressure pattern

Answer

Nimbostratus cloud in the northern alps, rotor clouds at the windward side, warm and dry wind

Question 40

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 41

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

Accepted Answer

+RA

Answer

RA

Answer

+SHRA

Answer

SHRA

Question 42

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

Accepted Answer

Katabatic wind

Answer

Convergent wind.

Answer

Anabatic wind.

Answer

Divergent wind.

Question 43

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

Increases by 2° C / 1000 ft

Answer

Decreases by 2° C / 100 m

Answer

Increases by 2° C / 100 m

Question 44

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

Accepted Answer

Parallel to the 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 45

The symbol labeled (3) as shown in the picture is a / an... See figure (MET-005) (1,00 P.) Siehe Anlage 4

Accepted Answer

Occlusion

Answer

Front aloft.

Answer

Warm front.

Answer

Cold front.

Question 46

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 47

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 48

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 49

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 50

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 51

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 52

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 53

Clouds in high layers are referred to as...

Accepted Answer

Cirro-

Answer

Nimbo-.

Answer

Strato-.

Answer

Alto-

Question 54

What information can be found in the ATIS, but not in a METAR?

Accepted Answer

Operational information such as runway in use and transition level

Answer

Information about current weather, for example types of precipitation

Answer

Information about mean wind speeds, maximum speeds in gusts if applicable

Answer

Approach information, such as ground visibility and cloud base

Question 55

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 56

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 57

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

Accepted Answer

QNH and comparing the indication with the airfield elevation.

Answer

QFE 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.

Question 58

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 59

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 60

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 61

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 62

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

An atmospheric layer where temperature decreases with increasing height

Answer

A boundary area between two other layers within the atmosphere

Question 63

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 64

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

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