Exam quiz Meteorology - Exam BPL Gas - Balloon Pilot License

Question 1

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 large ground low

Answer

Alternating pressure

Answer

Formation of a high in the upper troposphere

Question 2

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

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

Answer

Overhead unbroken cloud layers

Question 3

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 4

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

Accepted Answer

Showers and thunderstorms

Answer

Stabilisation and calm weather

Answer

Calm weather and cloud dissipation

Answer

Frontal weather

Question 5

Which force causes "wind"?

Accepted Answer

Pressure gradient force

Answer

Thermal force

Answer

Coriolis force

Answer

Centrifugal force

Question 6

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 7

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

Accepted Answer

0.65° C / 100 m

Answer

1° C / 100 m

Answer

0.6° C / 100 m

Answer

3° C / 100 m

Question 8

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 9

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 10

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

Overcast low stratus (high fog) with no precipitation

Answer

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

Answer

Thin Altostratus and Cirrostratus clouds with light and steady precipitation

Question 11

What weather development will result from convergence at ground level?

Accepted Answer

Ascending air and cloud formation

Answer

Ascending air and cloud dissipation

Answer

Descending air and cloud formation

Answer

Descending air and cloud dissipation

Question 12

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

Accepted Answer

Calm weather and cloud dissipation, few high Cu

Answer

Changing weather with passing of frontal lines

Answer

Squall lines and thunderstorms

Answer

Calm winds and widespread areas with high fog

Question 13

"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

Stability, high pressure area with calm wind

Answer

Instability, high pressure area with calm wind

Question 14

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

Accepted Answer

+RA

Answer

RA

Answer

+SHRA

Answer

SHRA

Question 15

How does air temperature change in ISA from MSL to approx. 10000 m height?

Accepted Answer

From +15° to -50°C

Answer

From +30° to -40°C

Answer

From -15° to 50°C

Answer

From +20° to -40°C

Question 16

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

Accepted Answer

Calm winds and widespread areas with high fog

Answer

Squall lines and thunderstorms

Answer

Changing weather with passing of frontal lines

Answer

Calm weather and cloud dissipation, few high Cu

Question 17

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

Accepted Answer

Polar front

Answer

Warm front

Answer

Cold front

Answer

Occlusion

Question 18

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

Accepted Answer

Surface weather chart

Answer

Hypsometric chart

Answer

Wind chart

Answer

Significant Weather Chart (SWC)

Question 19

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

Accepted Answer

Parallel to 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 20

The pressure at MSL in ISA conditions is...

Accepted Answer

1013.25 hPa

Answer

113.25 hPa

Answer

1123 hPa

Answer

15 hPa

Question 21

The barometric altimeter with QNH setting indicates...

Accepted Answer

Height above MSL

Answer

Height above the pressure level at airfield elevation

Answer

Height above standard pressure 1013.25 hPa

Answer

True altitude above MSL

Question 22

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 23

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 westerly winds with rapid veering

Answer

Strong prevailing easterly winds with rapid backing

Question 24

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 25

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 26

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

Accepted Answer

Overcast cloud cover

Answer

Clear night, no clouds

Answer

Low spread

Answer

Calm wind

Question 27

Light turbulence always has to be expected...

Accepted Answer

Below cumulus clouds due to thermal convection

Answer

When entering inversions

Answer

Above cumulus clouds due to thermal convection

Answer

Below stratiform clouds in medium layers

Question 28

Regarding the type of cloud, precipitation is classified as...

Accepted Answer

Rain and showers of rain

Answer

Light and heavy precipitation

Answer

Showers of snow and rain

Answer

Prolonged rain and continuous rain

Question 29

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 cold, clear nights with the formation of radiation fog

Answer

During warm summer days with high, flattened Cu clouds

Question 30

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

Humidity evaporates from warm, humid ground into cold air

Answer

Warm, humid air cools during a cloudy night

Question 31

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

Accepted Answer

Strong updrafts

Answer

An inversion layer

Answer

A high cloud base

Answer

Strong wind

Question 32

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 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 33

What is meant by "isothermal layer"?

Accepted 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

Answer

An atmospheric layer where temperature increases with increasing height

Question 34

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 35

Clouds are basically distinguished by what types?

Accepted Answer

Cumulus and stratiform clouds

Answer

Layered and lifted clouds

Answer

Thunderstorm and shower clouds

Answer

Stratiform and ice clouds

Question 36

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 37

What is meant by "inversion layer"?

Accepted 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 with constant temperature with increasing height

Answer

An atmospheric layer where temperature decreases with increasing height

Question 38

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 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

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, 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

Question 40

The movement of air flowing together is called...

Accepted Answer

Convergence

Answer

Subsidence

Answer

Divergence

Answer

Confluence

Question 41

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 subtropical high pressure belt

Answer

At the equator

Answer

At the geographic poles

Question 42

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

Evaporation over widespread water areas

Answer

Stabilisation of inflowing air masses

Question 43

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

Accepted Answer

When a shower is visible close to the airfield

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

Answer

Flying ahead of a warm front with visible Ci clouds

Question 44

What conditions are favourable for the formation of thunderstorms?

Accepted Answer

Warm humid air, conditionally unstable environmental lapse rate

Answer

Warm and dry air, strong inversion layer

Answer

Clear night over land, cold air and patches of fog

Answer

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

Question 45

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

Accepted Answer

Shortly decreasing, thereafter increasing pressure

Answer

Continually decreasing pressure

Answer

Constant pressure pattern

Answer

Continually increasing pressure

Question 46

What conditions are mandatory for the formation of thermal thunderstorms?

Accepted Answer

Conditionally unstable atmosphere, high temperature and high humidity

Answer

Absolutely stable atmosphere, high temperature and high humidity

Answer

Absolutely stable atmosphere, high temperature and low humidity

Answer

Conditionally unstable atmosphere, low temperature and low humidity

Question 47

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

Accepted Answer

SHRA

Answer

+TSRA

Answer

TS

Answer

+RA

Question 48

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 49

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

Accepted Answer

Surface weather chart

Answer

Wind chart

Answer

Hypsometric chart

Answer

Prognostic chart

Question 50

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 51

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

Small isobar spacing with strong prevailing northerly winds

Answer

Large isobar spacing with strong prevailing westerly winds

Answer

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

Question 52

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

Prolonged radiation during nights clear of clouds

Answer

Cold, moist air mixes with warm, moist air

Question 53

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

Accepted Answer

Development of showers and thunderstorms (Cb)

Answer

Formation of high stratus clouds, ground-covering cloud bases

Answer

Calm weather, formation of lifted fog layers

Answer

Calm wind, forming of shallow cumulus clouds

Question 54

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

Accepted Answer

Cirrus

Answer

Altocumulus

Answer

Stratus

Answer

Cumulus

Question 55

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 56

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

Accepted Answer

1.0° C / 100 m

Answer

0.6° C / 100 m

Answer

0.65° C / 100 m

Answer

2° C / 1000 ft

Question 57

With other factors remaining constant, decreasing temperature results in...

Accepted Answer

Decreasing spread and increasing relative humidity

Answer

Decreasing spread and decreasing relative humidity

Answer

Increasing spread and decreasing relative humidity

Answer

Increasing spread and increasing relative humidity

Question 58

What wind is reported as 225/15 ?

Accepted Answer

South-west wind with 15 kt

Answer

North-east wind with 15 km/h

Answer

South-west wind with 15 km/h

Answer

North-east wind with 15 kt

Question 59

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 60

The barometric altimeter indicates height above...

Accepted Answer

A selected reference pressure level

Answer

Mean sea level

Answer

Ground

Answer

Standard pressure 1013.25 hPa

Question 61

Which stage of a thunderstorm is dominated by updrafts?

Accepted Answer

Cumulus stage

Answer

Upwind stage

Answer

Mature stage

Answer

Dissipating stage

Question 62

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

Accepted Answer

Gust front

Answer

Freezing rain

Answer

Electrical discharge

Answer

Anvil-head top of Cb cloud

Question 63

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

Accepted Answer

Occlusion

Answer

Cold front

Answer

Warm front

Answer

Front aloft

Question 64

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

Accepted Answer

Liquid, solid and gaseous

Answer

Gaseous and liquid

Answer

Liquid and solid

Answer

Liquid

Exam simulation Meteorology - Exam BPL Gas - Balloon Pilot License

Exam simulation Gas Balloon Pilot Exam BPL Meteorology 120 questions on 120 minutes

Exam simulation Meteorology - Exam BPL Gas - Balloon Pilot License

Exam simulation Gas Balloon Pilot Exam BPL Meteorology 120 questions on 120 minutes

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