Exam quiz Meteorology - SPL - Sailplane Pilot License

Question 1

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 2

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 3

Which force causes "wind"?

Accepted Answer

Pressure gradient force

Answer

Centrifugal force

Answer

Coriolis force

Answer

Thermal force

Question 4

Clouds are basically distinguished by what types?

Accepted Answer

Cumulus and stratiform clouds

Answer

Thunderstorm and shower clouds

Answer

Stratiform and ice clouds

Answer

Layered and lifted clouds

Question 5

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

Accepted Answer

Development of showers and thunderstorms (Cb)

Answer

Calm weather, formation of lifted fog layers

Answer

Calm wind, forming of shallow cumulus clouds

Answer

Formation of high stratus clouds, ground-covering cloud bases

Question 6

Which stage of a thunderstorm is dominated by updrafts?

Accepted Answer

Cumulus stage

Answer

Dissipating stage

Answer

Mature stage

Answer

Upwind stage

Question 7

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 the night.

Answer

Wind blowing uphill from the valley during daytime.

Answer

Wind blowing down the mountain side during daytime.

Question 8

Above the friction layer, with a prevailing pressure gradient, the wind direction is...

Accepted Answer

Parallel to the isobars.

Answer

At an angle of 30° to the isobars towards low pressure.

Answer

Perpendicular to the isobars.

Answer

Perpendicular to the isohypses.

Question 9

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

Accepted Answer

0,6° C / 100 m.

Answer

1,0° C / 100 m.

Answer

2° C / 1000 ft.

Answer

0° C / 100 m.

Question 10

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 11

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 12

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

Accepted Answer

Variable winds, formation of local wind systems

Answer

Strong prevailing westerly winds with rapid veering

Answer

Strong prevailing easterly winds with rapid backing

Answer

Formation of local wind systems with strong prevailing westerly winds

Question 13

The barometric altimeter with QNH setting indicates...

Accepted Answer

Height above MSL

Answer

True altitude above MSL.

Answer

Height above the pressure level at airfield elevation.

Answer

Height above standard pressure 1013.25 hPa.

Question 14

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

Accepted Answer

36000 ft.

Answer

5500 ft

Answer

48000 ft.

Answer

11000 ft.

Question 15

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

Accepted Answer

Cirrus

Answer

Altocumulus

Answer

Cumulus

Answer

Stratus

Question 16

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 17

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

Accepted Answer

500 hPa

Answer

300 hPa

Answer

250 hPa

Answer

1013.25 hPa

Question 18

What situation is called "over-development" in a weather report?

Accepted Answer

Vertical development of Cumulus clouds to rain showers

Answer

Change from blue thermals to cloudy thermals during the afternoon

Answer

Development of a thermal low to a storm depression

Answer

Widespreading of Cumulus clouds below an inversion layer

Question 19

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

Flat land, deserted land, no vegetation

Answer

Oceanic areas

Question 20

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

Cumulonimbus

Answer

Altocumulus Castellanus

Question 21

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

An atmospheric layer with constant temperature with increasing height

Answer

A boundary area between two other layers within the atmosphere

Question 22

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

Accepted Answer

1,0° C / 100 m.

Answer

0,65° C / 100 m.

Answer

2° / 1000 ft.

Answer

0,6° C / 100 m.

Question 23

The character of an air mass is given by what properties?

Accepted Answer

Region of origin and track during movement

Answer

Wind speed and tropopause height

Answer

Environmental lapse rate at origin

Answer

Temperatures at origin and present region

Question 24

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

Accepted Answer

SHRA.

Answer

.+TSRA

Answer

TS.

Answer

.+RA.

Question 25

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 26

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

Accepted Answer

Troposphere

Answer

Tropopause

Answer

Stratosphere

Answer

Thermosphere

Question 27

Which type of cloud is associated with prolonged rain?

Accepted Answer

Nimbostratus

Answer

Altocumulus

Answer

Cumulonimbus

Answer

Cirrostratus

Question 28

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

Accepted Answer

Showers and thunderstorms.

Answer

Frontal weather.

Answer

Calm weather and cloud dissipation

Answer

Stabilisation and calm weather.

Question 29

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 30

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 31

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

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

Answer

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

Question 32

What factors are required for the formation of precipitation in clouds?

Accepted Answer

Moderate to strong updrafts

Answer

The presence of an inversion layer

Answer

Calm winds and intensive sunlight insolation

Answer

High humidity and high temperatures

Question 33

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 / 100 m

Answer

Decreases by 2° C / 100 m

Answer

Increases by 2° C / 1000 ft

Question 34

What situation is referred to as "shielding"?

Accepted Answer

High or mid-level cloud layers, impairing thermal activity

Answer

Ns clouds, covering the windward side of a mountain range

Answer

Anvil-like structure at the upper levels of a thunderstorm cloud

Answer

Coverage of Cumulus clouds, stated as part of eights of the sky

Question 35

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

Accepted Answer

Occlusion.

Answer

Cold front.

Answer

Warm front.

Answer

Front aloft.

Question 36

An inversion is a layer ...

Accepted Answer

With increasing temperature with increasing height.

Answer

With constant temperature with increasing height

Answer

With increasing pressure with increasing height.

Answer

With decreasing temperature with increasing height.

Question 37

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 38

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

Accepted Answer

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

Answer

In tropical areas, close to the equator.

Answer

In areeas showing extensive lifting processes.

Answer

In mid latitudes along the polar front

Question 39

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

Accepted Answer

Surface weather chart.

Answer

Significant Weather Chart (SWC)

Answer

Wind chart.

Answer

Hypsometric chart

Question 40

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 41

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 42

The pressure at MSL in ISA conditions is...

Accepted Answer

1013.25 hPa.

Answer

113.25 hPa.

Answer

15 hPa.

Answer

1123 hPa.

Question 43

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 44

What change in thermal activity may be expected with cirrus clouds coming up from one direction and becoming more dense, blocking the sun?

Accepted Answer

Cirrus clouds prevent insolation and impair thermal activity.

Answer

Cirrus clouds may intensify insolation and improve thermal activity

Answer

Cirrus clouds indicate an high-level inversion with thermal activity ongoing up to that level

Answer

Cirrus clouds indicate instability and beginning of over-development

Question 45

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 46

What danger is most immenent when an aircraft is hit by lightning?

Accepted Answer

Surface overheat and damage to exposed aircraft parts

Answer

Explosion of electrical equipment in the cockpit

Answer

Rapid cabin depressurization and smoke in the cabin

Answer

Disturbed radio communication, static noise signals

Question 47

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

Sky clear of clouds, sunshine, low winds

Answer

Shallow cumulus clouds with base at medium levels

Question 48

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

Accepted Answer

Clear ice

Answer

Hoar frost

Answer

Rime ice

Answer

Mixed ice

Question 49

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 50

What information is NOT found on Low-Level Significant Weather Charts (LLSWC)?

Accepted Answer

Radar echos of precipitation

Answer

Information about icing conditions

Answer

Front lines and frontal displacements

Answer

Information about turbulence areas

Question 51

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 52

What conditions are favourable for the formation of thunderstorms?

Accepted Answer

Warm humid air, conditionally unstable environmental lapse rate

Answer

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

Answer

Warm and dry air, strong inversion layer

Answer

Clear night over land, cold air and patches of fog

Question 53

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 54

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 55

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

Ground cooling by radiation during the night

Answer

Intensive sunlight insolation during a warm summer day

Answer

Advection of cool air in the upper troposphere

Question 56

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

Squall lines and thunderstorms

Answer

Calm weather and cloud dissipation, few high Cu

Question 57

What clouds and weather may result from an humid and instable 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

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

Answer

Thin Altostratus and Cirrostratus clouds with light and steady precipitation.

Answer

Overcast low stratus (high fog) with no precipitation.

Question 58

Clouds in high layers are referred to as...

Accepted Answer

Cirro-.

Answer

Strato-.

Answer

Nimbo-.

Answer

Alto-.

Question 59

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 subtropical high pressure belt

Answer

At the geographic poles

Question 60

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

Accepted Answer

Haze (HZ)

Answer

Radiation fog (FG)

Answer

Mist (BR)

Answer

Patches of fog (BCFG)

Question 61

What wind is reportet as 225/15 ?

Accepted Answer

South-west wind with 15 kt

Answer

North-east wind with 15 kt

Answer

South-west wind with 15 km/h

Answer

North-east wind with 15 km/h

Question 62

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

Accepted Answer

Overcast cloud cover

Answer

Calm wind

Answer

Clear night, no clouds

Answer

Low spread

Question 63

The saturated adiabatic lapse rate is...

Accepted Answer

Lower than the dry adiabatic lapse rate.

Answer

Equal to the dry adiabatic lapse rate.

Answer

Higher than the dry adiabatic lapse rate.

Answer

Proportional to the dry adiabatic lapse rate.

Question 64

While planning a 500 km triangle flight, there is a squall line 100 km west of the departure airfield, extending from north to south, moving east. Concerning the weather situation, what decision would be recommendable?

Accepted Answer

To postpone the flight to another day

Answer

To change plans and start the triangle heading east

Answer

To plan the flight below cloud base of the thunderstorms

Answer

During flight, to look for spacing between thunderstorms

Exam simulation Meteorology SPL - Sailplane Pilot License

Exam simulation SPL Meteorology 120 questions on 120 minutes