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

Question 1

Under which conditions "back side weather" ("Rückseitenwetter") can be expected?

Accepted Answer

After passing of a cold front

Answer

Before passing of an occlusion

Answer

During Foehn at the lee side

Answer

After passing of a warm front

Question 2

How does air temperature 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 3

What factor may affect the top of cumulus clouds?

Accepted Answer

The presence of an inversion layer

Answer

Relative humidity

Answer

The spread

Answer

The absolute humidity

Question 4

What kind of reduction in visibility is not very sensitive to changes in temperature?

Accepted Answer

Haze (HZ)

Answer

Patches of fog (BCFG)

Answer

Radiation fog (FG)

Answer

Mist (BR)

Question 5

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 6

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 7

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 8

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 9

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

Accepted Answer

Troposphere

Answer

Stratosphere

Answer

Tropopause

Answer

Thermosphere

Question 10

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 11

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 12

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 13

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 14

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 15

The movement of air flowing apart is called...

Accepted Answer

Divergence

Answer

Convergence

Answer

Concordence

Answer

Subsidence

Question 16

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 17

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 18

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 19

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 20

"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 21

What chart shows areas of precipitation?

Accepted Answer

Radar picture

Answer

GAFOR

Answer

Wind chart

Answer

Satellite picture

Question 22

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 23

How do spread and relative humidity change with increasing temperature?

Accepted Answer

Spread increases, relative humidity decreases

Answer

Spread remains constant, relative humidity decreases

Answer

Spread increases, relative humidity increases

Answer

Spread remains constant, relative humidity increases

Question 24

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 25

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 26

The movement of air flowing apart is called...

Accepted Answer

Divergence

Answer

Convergence

Answer

Concordance

Answer

Subsidence

Question 27

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

Accepted Answer

Cumulus

Answer

Stratus

Answer

Altus

Answer

Cirrus

Question 28

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 29

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 30

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 31

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 32

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

Accepted Answer

+RA

Answer

RA

Answer

+SHRA

Answer

SHRA

Question 33

Winds blowing downhill are defined as...

Accepted Answer

Katabatic winds.

Answer

Anabatic winds.

Answer

Convergent winds.

Answer

Subsident winds.

Question 34

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 35

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 Bay of Biscay 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 36

What danger is most imminent 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 37

The movement of air flowing together is called...

Accepted Answer

Convergence

Answer

Divergence

Answer

Confluence

Answer

Subsidence

Question 38

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 39

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 40

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 41

What information can be obtained from satellite images?

Accepted Answer

Overview of cloud covers and front lines

Answer

Temperature and dew point of environmental air

Answer

Turbulence and icing

Answer

Flight visibility, ground visibility, and ground contact

Question 42

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 43

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 44

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 45

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 46

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

Accepted Answer

SHRA

Answer

+RA

Answer

+TSRA

Answer

TS

Question 47

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 48

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 49

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 50

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 51

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 52

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 53

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 54

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 55

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 56

Which force causes "wind"?

Accepted Answer

Pressure gradient force

Answer

Centrifugal force

Answer

Thermal force

Answer

Coriolis force

Question 57

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 58

SIGMET warnings are issued for...

Accepted Answer

FIRs / UIRs

Answer

Specific routings.

Answer

Airports

Answer

Countries

Question 59

What factors may indicate a tendency to fog formation?

Accepted Answer

Low spread, decreasing temperature

Answer

Low pressure, increasing temperature

Answer

Low spread, increasing temperature

Answer

Strong winds, decreasing temperature

Question 60

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 61

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 62

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 63

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 64

Which answer contains every state of water found in the atmosphere?

Accepted Answer

Liquid, solid, and gaseous

Answer

Liquid and solid

Answer

Gaseous and liquid

Answer

Liquid

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

Exam simulation EASA PPL(A) EN Meteorology 120 questions on 120 minutes