Exam quiz Meteorology - Quiz BPL Hot Air - Balloon Pilot License

Question 1

What chart shows areas of precipitation?

Accepted Answer

Radar picture

Answer

GAFOR

Answer

Wind chart

Answer

Satellite picture

Question 2

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 3

The movement of air flowing apart is called...

Accepted Answer

Divergence

Answer

Concordance

Answer

Convergence

Answer

Subsidence

Question 4

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 5

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

0.1225 kg

Answer

12.25 kg

Answer

0.01225 kg

Question 6

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

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

Answer

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

Answer

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

Question 7

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 8

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 9

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 10

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 11

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

Accepted Answer

500 hPa

Answer

1013.25 hPa

Answer

300 hPa

Answer

250 hPa

Question 12

The pressure at MSL in ISA conditions is...

Accepted Answer

1013.25 hPa

Answer

113.25 hPa

Answer

1123 hPa

Answer

15 hPa

Question 13

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 14

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 15

What are the air masses that Central Europe is mainly influenced by?

Accepted Answer

Polar cold air and tropical warm air

Answer

Equatorial and tropical warm air

Answer

Tropical and arctic cold air

Answer

Arctic and polar cold air

Question 16

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 17

The "spread" is defined as...

Accepted Answer

Difference between actual temperature and dew point

Answer

Difference between dew point and condensation point

Answer

Relation of actual to maximum possible humidity of air

Answer

Maximum amount of water vapour that can be contained in air

Question 18

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 19

Clouds in high layers are referred to as...

Accepted Answer

Cirro-

Answer

Strato-

Answer

Alto-

Answer

Nimbo-

Question 20

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

Accepted Answer

Surface weather chart

Answer

Significant Weather Chart (SWC)

Answer

Prognostic chart

Answer

Hypsometric chart

Question 21

What is the gas composition of "air"?

Accepted Answer

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

Answer

Oxygen 78 % Water vapour 21 % Nitrogen 1 %

Answer

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

Answer

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

Question 22

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

Accepted Answer

11000 m

Answer

36000 m

Answer

11000 ft

Answer

18000 ft

Question 23

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 24

An inversion is a layer ...

Accepted Answer

With increasing temperature with increasing height

Answer

With increasing pressure with increasing height

Answer

With constant temperature with increasing height

Answer

With decreasing temperature with increasing height

Question 25

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 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

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

Accepted Answer

Troposphere

Answer

Thermosphere

Answer

Tropopause

Answer

Stratosphere

Question 28

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 29

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 30

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 31

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

Accepted Answer

Cirrus

Answer

Altocumulus

Answer

Stratus

Answer

Cumulus

Question 32

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 33

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 34

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 35

What factor may affect the top of cumulus clouds?

Accepted Answer

The presence of an inversion layer

Answer

The spread

Answer

Relative humidity

Answer

The absolute humidity

Question 36

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 37

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 38

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 39

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 40

Which of the stated surfaces will reduce the wind speed most due to ground friction?

Accepted Answer

Mountainous areas, vegetation cover

Answer

Flat land, lots of vegetation cover

Answer

Oceanic areas

Answer

Flat land, deserted land, no vegetation

Question 41

An inversion layer close to the ground can be caused by...

Accepted Answer

Ground cooling during the night

Answer

Large-scale lifting of air

Answer

Thickening of clouds in medium layers

Answer

Intensifying and gusting winds

Question 42

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 43

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 44

The movement of air flowing together is called...

Accepted Answer

Convergence

Answer

Subsidence

Answer

Divergence

Answer

Confluence

Question 45

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 46

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

Question 47

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

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

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

Question 48

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 49

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 50

What cloud type can typically be observed across widespread high pressure areas during summer?

Accepted Answer

Scattered Cu clouds

Answer

Squall lines and thunderstorms

Answer

Overcast low stratus

Answer

Overcast Ns clouds

Question 51

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

Accepted Answer

Continental polar air

Answer

Continental tropical air

Answer

Maritime tropical air

Answer

Maritime polar air

Question 52

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

Accepted Answer

Mature stage

Answer

Dissipating stage

Answer

Thunderstorm stage

Answer

Initial stage

Question 53

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 54

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 height above which the temperature starts to decrease

Answer

The boundary area between the mesosphere and the stratosphere

Question 55

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

Accepted Answer

Dew point remains constant, relative humidity increases

Answer

Dew point increases, relative humidity decreases

Answer

Dew point remains constant, relative humidity decreases

Answer

Dew point decreases, relative humidity increases

Question 56

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 57

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

Accepted Answer

Altocumulus lenticularis

Answer

Cumulonimbus

Answer

Altocumulus Castellanus

Answer

Nimbostratus

Question 58

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 59

"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 60

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 61

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 62

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 63

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 64

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

Exam simulation Meteorology Quiz BPL Hot Air - Balloon Pilot License

Exam simulation BPL Hot Air Meteorology 100 questions on 120 minutes