1- Density at the surface will be low when
Pressure is high and temperature is high
Pressure is high and temperature is low
Pressure is low and temperature is low
Pressure is low and temperature is high
2- An aircraft at Alcantarilla airfield (elevation 270ft) has the airfield QNH 1012mb correctly set. The altimeter setting is not changed. Later on landing at Albacete airfield (elevation 450ft) the aircraft altimeter reads 531ft. What is the correct QNH at Albacete? (Assume 27ft=1mb)
1014.7mb
1009.3mb
1015mb
1009mb
3- A katabatic wind can result in:
an increase in temperature
fog in the valley night
thunderstorms in summer
stratus cloud
4- Which of the following is true of a land breeze?
it blows only at noon
it blows from land to water
it blows from water to land
it blows by day
5- If temperature remains constant with an increase in altitude there is:
an inversion
an inversion aloft
uniform lapse rate
an isothermal layer
6- The tropopause is:
the line where the temperature no longer decreases with increase of height
the layer between the tropopause and the stratosphere
the layer beyond which only cirrus clouds occurs
the line in dicating clear air turbulence
7- Continuous type precipitation is expected from layer clouds because:
the vertical extent of the cloud is small
the upcurrents are not very strong
the air is stable
the cloud is large in horizontal extent
8- The turbulence associated with cumulus cloud is:
slight to nil
nil
moderate
moderate possibly severe
9- The barometric Pressure at the airfield datum point is known as:
QNE
QNH
QFE
Standard Pressure
10-Generally as altitude increases:
temperature decreases and density increases
temperature, pressure and density decreases
temperature and pressure increase and density decreases
temperature decreases and pressure density increases
11- The surface of the earth is heated by
convection
conduction
long wave solar radiation
short wave solar radiation
12. The main Ozone layer is to be found in the:
thermosphere
troposphere
mesosphere
stratosphere
13.- The method by which energy is transferred from one body to another by contact is called
radiation
latent heat
14.- The geostrophic wind blows:
parallel to curved isobars
when pressure values are changing rapidly
in a tropical revolving storm
when geostrophic force and pressure gradient force are equal
15.- In a saturated atmosphere air which is forced to rise will:
tend to regain its former position if the ELR is less than the SALR
classified as stable air when the ELR is greater than the SALR
tend to regain its former position if the ELR is greater than the SALR
carry a rising if the ELR is less than the SALR
16.- Areas of sinking air are generally cloudless because as air sinks it
loses water vapour
is heated by compression
reaches warmer layers
is heated by expansion
17.- An adiabatic process is defined as:
the cooling of the atmosphere at 3oC/1000ft
a change of temperature brought about by a change of pressure acting on an insulated parcel of air
a change of temperature brought about by air being forced to rise
an increase of temperature in an insulated parcel of air which the pressure has been decreased
18.- For the formation of mountain waves, the wind above the level of the ridge should:
decrease or even reverse direction
increase initially then decrease
increase with little change of direction
increase and then reverse in direction
19.- The process of change of state from a gas to a liquid is:
evaporation in which latent heat is absorbed
evaporation in which latent heat is released
condensation in which latent heat is absorbed
condensation in which latent heat is released
20.- The significance of lenticular cloud is:
there are mountain waves present but they may not give severe turbulence
a Föhn wind can be expected with no turbulence
there may be mountain waves present and there will be severe turbulence
a katabatic wind is present which may lead to fog in the valleys
21.- The geostrophic wind blows:
22.- The wet bulb temperature:
is measured using a hydrometer
is the minimum temperature to which a thermometer bulb can be cooled by the evaporation of water
measures the dew point of the air
is the minimum temperature reached by the surface of the earth as measured by a thermometer placed 1.5 meters above the ground
23.- Which of the following statements is true concerning advection fog?
it forms when unstable air is cooled adiabatically
it forms slowly and disappears rapidly
it can be formed suddenly by day or night
it forms at night or the early morning
24.- What does this mean on a weather chart
Severe icing between levels 280 and 360
Light turbulence from ground to a level between levels 280 and 360
Moderate turbulence between levels 280 and 360
Mountain waves between levels 280 and 360
25.- The term PROB as used in a TAF message indicates the probability, in percentage, of phenomena described during a specific period. The numerical values immediately following the term PROB, are:
35 or 50
30 or 40
30 or 50
40 or 50
26.- What does this mean in a weather chart
moderate icing and severe turbulence between levels 140 and 180
severe icing and turbulence between levels 140 and 180
moderate icing and light turbulence between levels 140 and 180
severe icing and moderate turbulence between levels 140 and 180
27.- Refer to the following TAF extract: TAF AMD LEBZ 180714Z 1806/1906 01004KT 9999 SCT030 TX23/1815Z TN16/1806Z TEMPO 1807/1824 4000 SHRA SCT030TCU PROB40 1809/1824 1500 TSRA SCT030CB=
Which clouds are forecasted for 2100 UTC?
SCT030 and SCT030TCU
SCT030, SCT030TCU ,SCT030CB
SCT030 or SCT030TCU and may be SCT030CB
SCT030 and may be SCT030TCU, SCT030CB