Index - Atpl Campus

100 item has been found

1-In a layer of air the decrease in temperature per 100 metres increase in height is more than 1°C. This layer can be described as being

050 4022 Thermodynamics

absolutely stable conditionally stable absolutely unstable conditionally unstable

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2-In a layer of air the decrease in temperature per 100 metres increase in height is more than 1°C. This layer can be described as being

050 1

conditionally unstable conditionally stable absolutely stable absolutely unstable

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3-The decrease in temperature, per 100 metres, in an unsaturated rising parcel of air is

050 4132 Thermodynamics

1°C 0.5°C 0.65°C 2°C

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4-The decrease in temperature, per 100 metres, in a saturated rising parcel of air at lower level of the atmosphere is approximately

050 4133 Thermodynamics

1.5°C 0.6°C 0.35°C 1°C

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5-The decrease in temperature, per 100 metres, in a saturated rising parcel of air at lower level of the atmosphere is approximately

050 1

0.6°C 1.5°C 0.35°C 1°C

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6-In still air the temperature decreases at an average of 1.2°C per 100 m increase in altitude. This temperature change is called:

050 4143 The Atmosphere

saturated adiabatic lapse rate Environmental lapse rate normal lapse rate dry adiabatic lapse rate

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7-In the troposphere the decrease in pressure per 100 m increase in height is

050 133 The Atmosphere

larger in the lower layers than in the higher layers in the order of 27 hPa per 100 m in the friction layer always larger in a high pressure area than in a low pressure area larger in the higher layers than in the lower layers

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8-A layer in which the temperature decreases with 1°C per 100m increasing altitude is

050 4167 Thermodynamics

absolutely stable conditionally unstable neutral for dry air absolutely unstable

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9-A layer is absolutely unstable if the temperature decrease with height is

050 4164 Thermodynamics

less than 0.65°C per 100m more than 1°C per 100m 0.65°C per 100m between 1°C per 100m and 0.65°C per 100m

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10-If you are flying at FL 100 in an air mass that is 10°C warmer than a standard atmosphere, what is the outside temperature likely to be?

050 2252 The Atmosphere

+15°C -10°C -15°C +5°C

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11-If in a 100 m thick layer the temperature at the bottom of the layer is 10°C and at the top of the layer is 8°C then this layer is

050 4168 Thermodynamics

neutral absolutely unstable absolutely stable conditionally unstable

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12-The QNH at an airfield located 200 metres above sea level is 1009 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QFF?

050 2242 The Atmosphere

1009 hPa Less than 1009 hPa It is not possible to give a definitive answer More than 1009 hPa

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13-The QFF at an airfield located 400 metres above sea level is 1016 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QNH?

050 2241 The Atmosphere

More than 1016 hPa 1016 hPa It is not possible to give a definitive answer Less than 1016 hPa

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14-The QFF at an airfield located 400 metres above sea level is 1016 hPa. The air temperature is 10°C higher than a standard atmosphere. What is the QNH?

050 2511 The Atmosphere

It is not possible to give a definitive answer Less than 1016 hPa More than 1016 hPa 1016 hPa

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15-In an air mass with no clouds the surface temperature is 15°C and the temperature at 1000 m/AGL is 13°C. This layer of air is:

050 2125 The Atmosphere

conditionally unstable a layer of heavy turbulence stable unstable

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16-The QNH at an airfield in California located 69 metres below sea level is 1018 hPa. The air temperature is 10°C higher than a standard atmosphere. What is the QFF?

050 2245 The Atmosphere

It is not possible to give a definitive answer Less than 1018 hPa More than 1018 hPa 1018 hPa

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17-The QFF at an airfield in California located 69 metres below sea level is 1030 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QNH?

050 2246 The Atmosphere

1030 hPa It is not possible to give a definitive answer Less than 1030 hPa More than 1030 hPa

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18-Which layer of the atmosphere contains more than 90 per cent of all water vapour?

050 2497 The Atmosphere

Lower stratosphere Ozone layer Upper stratosphere Troposphere

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19-A layer in which the temperature increases with height is

050 4166 Thermodynamics

absolutely unstable neutral conditionally unstable absolutely stable

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20-An isothermal layer is a layer of air in which the temperature

050 3725 The Atmosphere

increases with height at a constant rate decreases with height at a constant rate increases with height remains constant with height

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21-An inversion is a layer of air in which the temperature

050 3724 The Atmosphere

decreases with height more than 1°C/100m remains constant with height increases with height decreases with height less than 1°C/100m

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22-A layer in which the temperature remains constant with height is

050 4165 Thermodynamics

neutral conditionally unstable absolutely stable unstable

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23-If you are flying at FL 300 in an air mass that is 15°C warmer than a standard atmosphere, what is the outside temperature likely to be?

050 2251 The Atmosphere

-15°C -30°C -45°C -60°C

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24-In the lower levels of the atmosphere when the environmental lapse rate is greater than saturated adiabatic lapse rate but less than dry adiabatic lapse rate - the air mass is described as being

050 10899 Thermodynamics

absolutely unstable unstable conditionally unstable stable

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25-A winter day in northern Europe with a thick layer of stratocumulus clouds and temperature close to zero degrees C at ground level, you can expect:

050 3485 Uncategorized Wind

Reduced visibility and light icing in clouds Turbulence due to a strong inversion, but no icing because clouds consist of ice crystals A high probability for icing in clouds. Severe icing may occur in the upper part due to accumulation of large droplets. Decreasing visibility due to snowfall below cloud base, but only light icing in clouds.

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26-The actual change of the temperature in the air mass with height is known as:

050 1

The actual lapse rate (LR) The temperature curve The environmental lapse rate (ELR) The adiabatic lapse rate (ALR)

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27-In the ICAO Standard Atmosphere the decrease in temperature with height below 11 km is

050 3731 The Atmosphere

0.6°C per 100m 1°C per 100m 0.5°C per 100m 0.65°C per 100m

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28-Which of the following clouds may extend into more than one layer?

050 1

Nimbostratus. Altocumulus. Stratus. Cirrus.

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29-Given: Altimeter setting: 1013.2 hPa Altimeter reading: 5000 ft Outside air temperature at 5000 ft: +5°C QFE: 958 hPa QNH: 983 hPa What is the true height of the aeroplane above the aerodrome?

050 13640 Uncategorized Wind

4865 FT 4325 FT 3515 FT 4190 FT

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30-You are flying over the sea at FL 250 and measure an outside temperature of -50°C. The pressure at sea level is 1023 hPa. What is your approximate true altitude calculated using normal vertical change in temperature with increase in height?

050 12823 Uncategorized Wind

23230 FT/AMSL. 26230 FT/AMSL. 23770 FT/AMSL. 26770 FT/AMSL.

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31-At FL 180, the air temperature is -35°C. The air density at this level is:

050 1

Greater than the density of the ISA atmosphere at FL 180. Equal to the density of the ISA atmosphere at FL 180. Unable to be determined without knowing the QNH. Less than the density of the ISA atmosphere at FL 180.

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32-The temperature at the surface is given as +15°C and at 4000 FT it is +9°C, the state of this layer is said to be:

050 10930 The Atmosphere

stable unstable absolutely unstable conditionally unstable

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33-A layer can be

050 4021 The Atmosphere

stable for saturated air and unstable for unsaturated air unstable for unsaturated air and conditionally unstable stable for unsaturated air and unstable for saturated air unstable for unsaturated air and neutral for saturated air

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34-In an unsaturated layer in the friction layer the air is well mixed by turbulence. The layer remains unsaturated. After some time the vertical temperature profile will

050 13644 Thermodynamics

at first coincide with the average dry adiabat and then coincide with the average wet adiabat. correspond to the dry adiabatic lapse rate. coincide with the average wet adiabat in the layer. always change toward a more stable position.

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35-A temperature of +15°C is recorded at an altitude of 500 metres above sea level. If the vertical temperature gradient is that of a standard atmosphere, what will the temperature be at the summit of a mountain, 2500 metres above sea level?

050 2501 The Atmosphere

+2°C 0°C -2°C +4°C

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36-On the approach, the surface temperature is given as -5°C. The freezing level is at 3000 FT/AGL. At 4000 FT/AGL, there is a solid cloud layer from which rain is falling. According to the weather briefing, the clouds are due to an inversion caused by warm air sliding up and over an inclined front. Would you expect icing?

050 2049 Flight Hazards

Yes, but only between 3000 and 4000 FT/AGL. No, absolutely no icing will occur. Yes, between ground level and 3000 FT/AGL. No, flights clear of cloud experience no icing.

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37-Given:
Altimeter setting: 1013.2 hPa
Altimeter reading: 5000 ft
Outside air temperature at 5000 ft: +5°C
QFE: 958 hPa
QNH: 983 hPa
What is the true height of the aircraft above the aerodrome?

050 15440 The Atmosphere

4865 ft 4190 ft 3515 ft 4325 ft

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38-The QNH at an airfield located 200 metres above sea level is 1022 hPa. The air temperature is not available. What is the QFF?

050 2243 The Atmosphere

Less than 1022 hPa 1022 hPa It is not possible to give a definitive answer More than 1022 hPa

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39-An outside air temperature of -35°C is measured while cruising at FL 200. What is the temperature deviation from the ISA at this level?

050 1197 The Atmosphere

5°C colder than ISA. 5°C warmer than ISA. 10°C colder than ISA. 10°C warmer than ISA.

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40-If the surface temperature is 15°C , then the temperature at 10000 FT in a current of ascending unsaturated air is:

050 4141 Thermodynamics

5°C -5°C -15°C 0°C

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41-An outside air temperature of -35°C is measured while cruising at FL 200. What is the temperature deviation from the ISA at this level

050 1

10°C colder than ISA. 10°C warmer than ISA. 5°C colder than ISA. 5°C warmer than ISA.

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42-The QNH of an airport at sea level is 983 hPa and the temperature deviation from ISA is -15°C below FL 100. What is the true altitude of FL 100?

050 1316 The Atmosphere

8640 ft 11460 ft 9740 ft 10160 ft

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43-Divergence in the upper air that is greater than the convergence in the friction layer results, near the surface, in

050 4072 Wind

falling pressure and likely dissipation of clouds falling pressure and likely formation of clouds rising pressure and likely formation of clouds rising pressure and likely dissipation of clouds

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44-A parcel of unsaturated air is forced to rise through an isothermal layer. So long as it remains unsaturated, the temperature of the parcel

050 10847 Air Masses and Fronts

decreases 0.65°C per 100 m remains constant becomes equal to the temperature of the isothermal layer decreases 1°C per 100 m

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45-Below is the forecast for the destination of a flight whose ETA is 2030 UTC.
TAF YUDO 120600Z 121206 17010KT 3000 SCT005 BECMG 1820 VRB03KT BCFG SKC BECMG 2022 0300 FG VV002=
What can be said about the destination airport at 2030 UTC if CAT II ILS minima 350 m RVR, 100 ft Decision Height are being considered?

050 16706 Meteorological Information

Still open because the decrease of the visibility below the CAT II minima will be a little bit later than 2030 UTC. Has to be considered as closed. Still open until 2200 UTC because the weather change is not completed before 2200 UTC. Open the whole night because 300 m of visibility corresponds to at least 900 m RVR.

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46-A layer is conditionally unstable if the air

050 62 The Atmosphere

is unstable for saturated air as well as for dry air. is stable for saturated air and unstable for dry air. is unstable for saturated air and stable for dry air. becomes stable by lifting it.

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47-An inversion is a layer of air which is

050 3726 Uncategorized Wind

conditionally stable absolutely stable absolutely unstable conditionally unstable

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48-An inversion is a layer of air which is

050 1

conditionally stable absolutely unstable conditionally unstable absolutely stable

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49-An air temperature of -55°C at the 200 hPa level over central Europe in summer is

050 2504 The Atmosphere

High Within +/-5°C of ISA Very high Low

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50-An air temperature of -30°C at the 300 hPa level over central Europe in summer is

050 2503 The Atmosphere

High Very low Within +/-5°C of ISA Low

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51-An air temperature of -15°C at the 700 hPa level over central Europe in summer is

050 2502 The Atmosphere

High Low 20°C below standard Within +/-5°C of ISA

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52-You are at FL120 with an outside air temperature is -2°C. Where would you find the freezing level?

050 1

FL100 FL110 FL090 FL140

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53-Consider a parcel of air being forced upwards in the atmosphere. The lapse rate of the surrounding air is less than the saturated adiabatic lapse rate. After the initial force is no longer effective, the parcel of air

050 15075 Thermodynamics

will tend to remain at the new altitude. will tend to descend to its original altitude. will become conditionally unstable. will tend to ascend further.

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54-During the late afternoon an air temperature of +12°C and a dew point of +5°C were measured. What temperature change must at least occur during the night in order to induce saturation?

050 1209 Thermodynamics

It must decrease by 5°C. It must decrease to +6°C. It must decrease to +7°C. It must decrease to +5°C.

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55-Which type of fog is likely to form when air having temperature of 15°C and dew point of 12°C blows at 10 knots over a sea surface having temperatures of 5°C ?

050 2175 Clouds and Fog

Radiation fog Frontal fog Steam fog Advection fog

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56-You are flying at FL 300 where the outside air temperature is -57.5°C and the pressure at MSL is 1013.25 hPa. If you assume that the difference between the actual temperature and the temperature in the ISA is valid for the whole troposphere, then the true altitude is:

050 15416 The Atmosphere

30000 ft 27000 ft 31500 ft 28500 ft

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57-Atmospheric soundings give the following temperature profile: 3000 FT +15°C 6000 FT +8°C 10000 FT +1°C 14000 FT -6°C 18000 FT -14°C 24000 FT -26°C At which of the following flight levels is the risk for aircraft icing, in cloud, greatest?

050 2048 Flight Hazards

FL 80 FL 220 FL 150 FL 180

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58-What type of cloud is being described ? A generally grey cloud layer with fairly uniform base and uniform appearance, which may give drizzle or snow grains. When the sun is visible through the cloud, the outline is clearly discernible. Sometimes it appears in the form of ragged patches.

050 4052 Clouds and Fog

Cirrostratus Altostratus Stratus Nimbostratus

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59-The height and the temperature of the tropopause are respectively in the order of

050 3723 The Atmosphere

16 km and -40°C over the poles 8 km and - 75°C over the poles 8 km and -40°C over the equator 16 km and -75°C over the equator

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60-You are flying at FL 200. Outside air temperature is -40°C, and the pressure at sea level is 1033 hPa. What is the true altitude?

050 12824 Wind Uncategorized

18290 ft 21770 ft 19310 ft 20630 ft

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61-What intensity and type of airframe icing is most likely to occur when flying at FL 170 in AS with the outside air temperature at -20°C?

050 10940 Flight Hazards

Light - rime Moderate - clear Moderate - hoar frost Severe - clear

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62-You are flying at FL 160. Outside air temperature is -27°C, and the pressure at sea level is 1003 hPa. What is the true altitude?

050 2521 Wind Uncategorized

15100 ft 16360 ft 16920 ft 15620 ft

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63-You have been flying for some time in dense layered cloud. The outside air temperature is -25°C. Which of the following statements is true?

050 2712 Flight Hazards

In a dense layered cloud icing is unlikely also at an outside air temperature of -5°C If you do not have weather radar on board there is no need to worry, as CB is unlikely to form in such cloud Severe airframe icing is unlikely under these conditions Severe airframe icing is quite likely under these conditions

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64-It is raining and the outside air temperature is -5°C. What would you decide if you have a propeller to operate in non-icing conditions only?

050 1

I would not fly because I know that freezing rain causes rime ice. I would decide to fly. I would not fly because I know that freezing rain causes clear ice. I would fly because freezing rain improves aircraft performance.

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65-You are flying at FL 160. Outside air temperature is -27°C, and the pressure at sea level is 1003 hPa. What is the true altitude?

050 12825 Uncategorized Wind

15100 ft 16920 ft 15620 ft 16360 ft

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66-You are flying at FL 200. Outside air temperature is -40°C, and the pressure at sea level is 1033 hPa. What is the true altitude?

050 2520 Wind Uncategorized

19310 ft 21770 ft 18290 ft 20630 ft

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67-If atmospheric conditions exist such that the temperature deviation is ISA +10°C in the lower troposphere up to 18000 FT, what is the actual layer thickness between FL 60 and FL 120 ?

050 66 The Atmosphere

6000 FT. 5760 FT. 6240 FT. 5900 FT.

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68-The Variation of Air Density with Temperature:

050 1

The lower the temperature of air, the lower is its density. The lower the temperature of air, the greater is its density. The higher the air temperature, the greater is its density. The higher the temperature of air, the greater is its density.

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69-Which cloud type (genus) is described by the following definition?
"Grey cloud layer, often dark, the appearance of which is rendered diffuse by more or less continuously falling rain or snow, which in most cases reaches the ground. It is thick enough throughout to blot out the sun. Low, ragged clouds frequently occur below the layer, with which they may or may not merge."

050 15627 Clouds and Fog

Altostratus Stratocumulus Nimbostratus Stratus

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70-An aircraft is flying over the sea at FL 100, with a true altitude of 10000 feet; local QNH is 1003 hPa. What assumption, if any, can be made about the air mass in which the aircraft is flying ?

050 2260 The Atmosphere

Its average temperature is about ISA There is insufficient information to come to any conclusion It is colder than ISA It is warmer than ISA

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71-What is the technical term for an increase in temperature with altitude?

050 2505 The Atmosphere

Advection Subsidence Adiabatic Inversion

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72-When in the upper part of a layer warm air is advected the

050 4026 The Atmosphere

wind speed will always decrease with increasing height in the northern hemisphere stability increases in the layer wind will back with increasing height in the northern hemisphere stability decreases in the layer

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73-You are flying with an outside air temperature of -12°C and a TAS of 250 kt at FL 150 through 8 oktas NS. What type and degree of icing is most probable?

050 226 Flight Hazards

In clouds pushed up against the mountains, moderate to severe clear ice. Over flat terrain, away from fronts, moderate to severe mixed ice. Over flat terrain, moderate hoar frost. In clouds pushed up against the mountains, moderate to severe mixed ice.

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74-Which of the following processes will increase the stability of an air mass?

050 12794 Uncategorized Wind

Warming of the air mass from below. Cooling by the underlying surface. Advection of colder air aloft. Addition of water vapour in the lower layer.

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75-Which of the following processes will increase the stability of an air mass?

050 15594 Wind Uncategorized

Cooling by the underlying surface. Advection of colder air aloft. Warming of the air mass from below. Addition of water vapour in the lower layer.

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76-You are flying at a constant indicated altitude with the QNH of 1015 set within the subscale and you notice the outside air temperature has been falling constantly. What can you expect to have happened to your true altitude?

050 1

The true altitude will have decreased. The true altitude will have remained the same. The true altitude will have increased. The true altitude will have increased then decreased.

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77-When visibility is reduced by water droplets to less than 1000 metres it is classified as

050 10957 Clouds and Fog

mist dust fog fog haze

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78-The temperature remains constant through a given depth of atmosphere, it is described as

050 1

advection the Environmental Lapse Rate being isothermal, temperature inversion

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79-The air mass affecting position "C" is most likely to be

050 13623 Uncategorized Wind

Continental polar. Maritime tropical. Maritime polar. Continental tropical.

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80-Decode the cloud bases being described in this METAR for an aerodrome: 261450Z 07007KT 9999 FEW035 SCT043 BKN240 21/12 Q1016 NOSIG =

050 1

1-2 oktas at 3500 ft., 2-3 oktas at 4300 ft., 5-8 oktas at 24000 ft. 1-2 oktas at 3500 ft., 3-4 oktas at 4300 ft., 5-7 oktas at 24000 ft. 2-3 oktas at 3500 ft., 4-5 oktas at 4300 ft., 6-7 oktas at 24000 ft. 1-2 oktas at 350 ft., 3-4 oktas at 430 ft., 5-7 oktas at 2400 ft.

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81-At FL 180, the air temperature is -35°C.The air density at this level is:

050 13643 The Atmosphere

Unable to be determined without knowing the QNH. Less than the density of the ISA at FL 180. Equal to the density of the ISA at FL 180. Greater than the density of the ISA at FL 180.

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82-At FL 180, the air temperature is -35°C.The air density at this level is:

050 130 The Atmosphere

Equal to the density of the ISA at FL 180. Unable to be determined without knowing the QNH. Less than the density of the ISA at FL 180. Greater than the density of the ISA at FL 180.

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83-Air masses which are being cooled from below are often characterized by:

050 10856 Air Masses and Fronts

fog, poor visibility and layered clouds. uniform temperature, good visibility. continuous rain and freezing temperatures. strong winds, cumulus clouds, good visibility.

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84-Air masses which are being cooled from below are often characterized by:

050 13659 Air Masses and Fronts

uniform temperature, good visibility. continuous rain and freezing temperatures. strong winds, cumulus clouds, good visibility. fog, poor visibility and layered clouds.

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85-You plan a flight over a mountain range at a true altitude of 15000 FT/AMSL. The air is on an average 15°C colder than ISA, the pressure at sea level is 1003 hPa. What approximate indication should the altimeter (setting 1013.2 hPa) read?

050 1548 The Atmosphere

15690 FT. 16230 FT. 13830 FT. 14370 FT.

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86-Which of the following clouds may extend into more than one stage?

050 15769 Clouds and Fog

Stratus Cumulus congestus Cirrocumulus Altocumulus

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87-Which of the following clouds may extend into more than one level?

050 1223 Clouds and Fog

Cirrus. Altocumulus. Nimbostratus. Stratus.

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88-A cold air pool can be best identified by means of

050 16841 Climatology

the isobars on a surface chart the isohypses on an upper air chart a GAMET report the CAT areas on a significant weather chart

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89-Temperature decreases with altitude in standard atmosphere. Regarding this change in temperature, density should increase with altitude but it decreases. What is the reason?

050 1

The increase in pressure with altitude decreases the density. The temperature has no effect on air density. The decrease in pressure being more dominant than the decrease in temperature, causes the density to decrease. Scientist continue their research on this subject

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90-The stable layer at some height in the low troposphere of an older high pressure area in the mid-latitudes is called

050 4100 Pressure Systems

trade wind inversion radiation inversion subsidence inversion friction inversion

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91-The 0°C isotherm is forecast to be at FL 50. At what FL would you expect a temperature of -6°C?

050 1

FL 100 FL 20 FL 80 FL 110

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92-The following temperatures have been observed over a station at 1200 UTC. Assume the station is at MSL. Height in feet. Temperature in degrees C. 20000.-12 18000.-11 16000.-10 14000.-10 12000.-6 10000.-2 8000. +2 6000. +6 4000. +12 2000. +15 surface+15. Which of the following statements is correct ?

050 4134 Uncategorized Wind

The temperature at 10000 FT is in agreement with the temperature in the International Standard Atmosphere. The layer between 16000 and 18000 FT is absolutely unstable Assuming that the MSL pressure is 1013.25 hPa the true altitude of an aircraft would actually be higher than the indicated altitude. The height of the freezing level over the station is approximately 12000 FT.

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93-The temperature at FL 140 is -12°C. What will the temperature be at FL 110 if the ICAO standard lapse rate is applied ?

050 65 The Atmosphere

-9°C. -15°C. -18°C. -6°C.

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94-The temperature at FL 80 is +6°C. What will the temperature be at FL 130 if the ICAO standard lapse rate is applied ?

050 2498 The Atmosphere

+2°C -6°C 0°C -4°C

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95-The temperature at FL 160 is -22°C. What will the temperature be at FL 90 if the ICAO standard lapse rate is applied ?

050 2500 The Atmosphere

0°C +4°C -4°C -8°C

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96-The temperature at FL 110 is -5°C. What will the temperature be at FL 50 if the ICAO standard lapse rate is applied ?

050 2499 The Atmosphere

+3°C 0°C -3°C +7°C

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97-At an altitude of 1650 feet AMSL, a temperature of +15°C is measured. What will the temperature be at an altitude of 8200 feet, if you consider the temperature gradient of the Standard Atmosphere?

050 1

-2°C 0°C +2°C +4°C

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98-A given mass of air is saturated with water vapour (no condensed water). If temperature increases

050 16759 Thermodynamics

the amount of water vapour decreases the amount of water vapour remains constant relative humidity remains constant relative humidity increases

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99-If a saturated air mass descends down a slope its temperature increases at

050 2130 Thermodynamics

the same rate as if the air mass were dry. a higher rate than in dry air, as it gives up latent evaporation heat. a lower rate than in dry air, as evaporation absorbs heat. a lower rate than in dry air, as condensation gives out heat.

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100-How, if at all, is the relative humidity of an unsaturated air mass influenced by temperature changes?

050 1206 Thermodynamics

It is only influenced by the amount of water vapour. It is not influenced by temperature changes. It increases with increasing temperature. It decreases with increasing temperature.

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1-In a layer of air the decrease in temperature per 100 metres increase in height is more than 1°C. This layer can be described as being

2-In a layer of air the decrease in temperature per 100 metres increase in height is more than 1°C. This layer can be described as being

3-The decrease in temperature, per 100 metres, in an unsaturated rising parcel of air is

4-The decrease in temperature, per 100 metres, in a saturated rising parcel of air at lower level of the atmosphere is approximately

5-The decrease in temperature, per 100 metres, in a saturated rising parcel of air at lower level of the atmosphere is approximately

6-In still air the temperature decreases at an average of 1.2°C per 100 m increase in altitude. This temperature change is called:

7-In the troposphere the decrease in pressure per 100 m increase in height is

8-A layer in which the temperature decreases with 1°C per 100m increasing altitude is

9-A layer is absolutely unstable if the temperature decrease with height is

10-If you are flying at FL 100 in an air mass that is 10°C warmer than a standard atmosphere, what is the outside temperature likely to be?

11-If in a 100 m thick layer the temperature at the bottom of the layer is 10°C and at the top of the layer is 8°C then this layer is

12-The QNH at an airfield located 200 metres above sea level is 1009 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QFF?

13-The QFF at an airfield located 400 metres above sea level is 1016 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QNH?

14-The QFF at an airfield located 400 metres above sea level is 1016 hPa. The air temperature is 10°C higher than a standard atmosphere. What is the QNH?

15-In an air mass with no clouds the surface temperature is 15°C and the temperature at 1000 m/AGL is 13°C. This layer of air is:

16-The QNH at an airfield in California located 69 metres below sea level is 1018 hPa. The air temperature is 10°C higher than a standard atmosphere. What is the QFF?

17-The QFF at an airfield in California located 69 metres below sea level is 1030 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QNH?

18-Which layer of the atmosphere contains more than 90 per cent of all water vapour?

19-A layer in which the temperature increases with height is

20-An isothermal layer is a layer of air in which the temperature

21-An inversion is a layer of air in which the temperature

22-A layer in which the temperature remains constant with height is

23-If you are flying at FL 300 in an air mass that is 15°C warmer than a standard atmosphere, what is the outside temperature likely to be?

24-In the lower levels of the atmosphere when the environmental lapse rate is greater than saturated adiabatic lapse rate but less than dry adiabatic lapse rate - the air mass is described as being

25-A winter day in northern Europe with a thick layer of stratocumulus clouds and temperature close to zero degrees C at ground level, you can expect:

26-The actual change of the temperature in the air mass with height is known as:

27-In the ICAO Standard Atmosphere the decrease in temperature with height below 11 km is

28-Which of the following clouds may extend into more than one layer?

29-Given: Altimeter setting: 1013.2 hPa Altimeter reading: 5000 ft Outside air temperature at 5000 ft: +5°C QFE: 958 hPa QNH: 983 hPa What is the true height of the aeroplane above the aerodrome?

30-You are flying over the sea at FL 250 and measure an outside temperature of -50°C. The pressure at sea level is 1023 hPa. What is your approximate true altitude calculated using normal vertical change in temperature with increase in height?

31-At FL 180, the air temperature is -35°C. The air density at this level is:

32-The temperature at the surface is given as +15°C and at 4000 FT it is +9°C, the state of this layer is said to be:

33-A layer can be

34-In an unsaturated layer in the friction layer the air is well mixed by turbulence. The layer remains unsaturated. After some time the vertical temperature profile will

35-A temperature of +15°C is recorded at an altitude of 500 metres above sea level. If the vertical temperature gradient is that of a standard atmosphere, what will the temperature be at the summit of a mountain, 2500 metres above sea level?

37-Given:Altimeter setting: 1013.2 hPaAltimeter reading: 5000 ftOutside air temperature at 5000 ft: +5°CQFE: 958 hPaQNH: 983 hPaWhat is the true height of the aircraft above the aerodrome?

38-The QNH at an airfield located 200 metres above sea level is 1022 hPa. The air temperature is not available. What is the QFF?

39-An outside air temperature of -35°C is measured while cruising at FL 200. What is the temperature deviation from the ISA at this level?

40-If the surface temperature is 15°C , then the temperature at 10000 FT in a current of ascending unsaturated air is:

41-An outside air temperature of -35°C is measured while cruising at FL 200. What is the temperature deviation from the ISA at this level

42-The QNH of an airport at sea level is 983 hPa and the temperature deviation from ISA is -15°C below FL 100. What is the true altitude of FL 100?

43-Divergence in the upper air that is greater than the convergence in the friction layer results, near the surface, in

44-A parcel of unsaturated air is forced to rise through an isothermal layer. So long as it remains unsaturated, the temperature of the parcel

46-A layer is conditionally unstable if the air

47-An inversion is a layer of air which is

48-An inversion is a layer of air which is

49-An air temperature of -55°C at the 200 hPa level over central Europe in summer is

50-An air temperature of -30°C at the 300 hPa level over central Europe in summer is

51-An air temperature of -15°C at the 700 hPa level over central Europe in summer is

52-You are at FL120 with an outside air temperature is -2°C. Where would you find the freezing level?

53-Consider a parcel of air being forced upwards in the atmosphere. The lapse rate of the surrounding air is less than the saturated adiabatic lapse rate. After the initial force is no longer effective, the parcel of air

54-During the late afternoon an air temperature of +12°C and a dew point of +5°C were measured. What temperature change must at least occur during the night in order to induce saturation?

55-Which type of fog is likely to form when air having temperature of 15°C and dew point of 12°C blows at 10 knots over a sea surface having temperatures of 5°C ?

56-You are flying at FL 300 where the outside air temperature is -57.5°C and the pressure at MSL is 1013.25 hPa. If you assume that the difference between the actual temperature and the temperature in the ISA is valid for the whole troposphere, then the true altitude is:

57-Atmospheric soundings give the following temperature profile: 3000 FT +15°C 6000 FT +8°C 10000 FT +1°C 14000 FT -6°C 18000 FT -14°C 24000 FT -26°C At which of the following flight levels is the risk for aircraft icing, in cloud, greatest?

58-What type of cloud is being described ? A generally grey cloud layer with fairly uniform base and uniform appearance, which may give drizzle or snow grains. When the sun is visible through the cloud, the outline is clearly discernible. Sometimes it appears in the form of ragged patches.

59-The height and the temperature of the tropopause are respectively in the order of

60-You are flying at FL 200. Outside air temperature is -40°C, and the pressure at sea level is 1033 hPa. What is the true altitude?

61-What intensity and type of airframe icing is most likely to occur when flying at FL 170 in AS with the outside air temperature at -20°C?

62-You are flying at FL 160. Outside air temperature is -27°C, and the pressure at sea level is 1003 hPa. What is the true altitude?

63-You have been flying for some time in dense layered cloud. The outside air temperature is -25°C. Which of the following statements is true?

64-It is raining and the outside air temperature is -5°C. What would you decide if you have a propeller to operate in non-icing conditions only?

65-You are flying at FL 160. Outside air temperature is -27°C, and the pressure at sea level is 1003 hPa. What is the true altitude?

66-You are flying at FL 200. Outside air temperature is -40°C, and the pressure at sea level is 1033 hPa. What is the true altitude?

67-If atmospheric conditions exist such that the temperature deviation is ISA +10°C in the lower troposphere up to 18000 FT, what is the actual layer thickness between FL 60 and FL 120 ?

68-The Variation of Air Density with Temperature:

70-An aircraft is flying over the sea at FL 100, with a true altitude of 10000 feet; local QNH is 1003 hPa. What assumption, if any, can be made about the air mass in which the aircraft is flying ?

71-What is the technical term for an increase in temperature with altitude?

72-When in the upper part of a layer warm air is advected the

73-You are flying with an outside air temperature of -12°C and a TAS of 250 kt at FL 150 through 8 oktas NS. What type and degree of icing is most probable?

74-Which of the following processes will increase the stability of an air mass?

75-Which of the following processes will increase the stability of an air mass?

76-You are flying at a constant indicated altitude with the QNH of 1015 set within the subscale and you notice the outside air temperature has been falling constantly. What can you expect to have happened to your true altitude?

77-When visibility is reduced by water droplets to less than 1000 metres it is classified as

78-The temperature remains constant through a given depth of atmosphere, it is described as

79-The air mass affecting position "C" is most likely to be

80-Decode the cloud bases being described in this METAR for an aerodrome: 261450Z 07007KT 9999 FEW035 SCT043 BKN240 21/12 Q1016 NOSIG =

81-At FL 180, the air temperature is -35°C.The air density at this level is:

37-Given:
Altimeter setting: 1013.2 hPa
Altimeter reading: 5000 ft
Outside air temperature at 5000 ft: +5°C
QFE: 958 hPa
QNH: 983 hPa
What is the true height of the aircraft above the aerodrome?