Index - Atpl Campus

100 item has been found

1-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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2-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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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-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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5-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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6-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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7-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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8-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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9-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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10-A parcel of unsaturated air is lifted to just below the condensation level and then returned to its original level. What is the final temperature of the parcel of air?

050 63 Thermodynamics

Higher than the starting temperature. Lower than the starting temperature. It depends upon the QFE. The same as the starting temperature.

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11-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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12-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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13-A moist but unsaturated parcel of air becomes saturated by

050 4033 Thermodynamics

lowering the parcel to a lower level moving the parcel to an area with higher pressure and equal temperature moving the parcel to an area with lower pressure and equal temperature lifting the parcel to a higher level

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14-A parcel of air is said to be saturated if it has a relative humidity of:

050 1

50% Greater than 80 % Greater than 90 % 100%

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15-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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16-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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17-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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18-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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19-A parcel of rising air stays unsaturated. Which of the following statements is correct?

050 1583 Thermodynamics

Relative humidity decreases, mixing ratio remains unchanged Relative humidity increases, temperature decreases Relative humidity and mixing ratio remain unchanged Mixing ratio increases, temperature decreases

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20-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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21-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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22-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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23-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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24-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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25-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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26-What is, approximately, the temperature at 20000 FT in the ICAO Standard Atmosphere?

050 12850 The Atmosphere

-15°C -30°C -20°C -25°C

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27-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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28-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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29-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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30-Rising air cools because

050 3742 Clouds and Fog

surrounding air is cooler at higher levels it contracts it expands it becomes more moist

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31-Rising air cools because

050 1

Surrounding air is cooler at higher levels It becomes more moist It contracts It expands

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32-The total depth of the atmosphere is approximately

050 1

500 KM 20 KM more than 1000 KM. 120 kilometers (400 000 feet).

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33-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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34-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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35-Between mean sea level and a height of 20 km, the lowest temperature in the ICAO Standard Atmosphere (ISA) is:

050 10870 The Atmosphere

-44.7°C -56.5°C -100°C -273°C

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36-The temperature at 3000 ft. above mean sea level is forecast to be 3°C. What is the deviation from ICAO Standard Atmosphere?

050 1

ISA +6 ISA -6 ISA -7 ISA +5

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37-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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38-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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39-The QNH at an airfield located at mean sea level is 1022 hPa. The air temperature is not available. What is the QFF?

050 2244 The Atmosphere

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

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40-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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41-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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42-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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43-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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44-For both saturated and unsaturated air instability will occur when the

050 10884 Thermodynamics

dry adiabatic lapse rate is less than saturated adiabatic lapse rate but greater than environmental lapse rate environmental lapse rate is greater than both dry adiabatic lapse rate and saturated adiabatic lapse rate environmental lapse rate is greater than saturated adiabatic lapse rate but less than dry adiabatic lapse rate environmental lapse rate is less than both dry adiabatic lapse rate and saturated adiabatic lapse rate

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45-A sample of moist but unsaturated air may become saturated by

050 4034 Thermodynamics

lowering the pressure, keeping temperature constant expanding it adiabatically compressing it adiabatically raising the temperature

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46-The temperature at 10000ft in the ICAO Standard Atmosphere

050 1

0 C -20 C -35 C -5 C

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47-The most significant raising of the temperature of the atmosphere is

050 1

radiation of short wavelength from the Sun radiation of long wavelength from the Sun from reflective surfaces, such as areas of ice or snow radiation encounters the Earth's surface and is re-radiated into the atmosphere

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48-What is the lowest temperature in standard atmosphere?

050 1

(-54,5 C) (-50,5 C) (-63,5 C) (-56,5 C)

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49-When ...... in a parcel of air, relative humidity increases.

050 1

temperature increases density increases water vapor added reduced humidity

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50-The reason for the cooling of the parcel of air during the adiabatic process is…

050 1

pressure decrease. getting away from the earth. temperature decrease. pressure increase.

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51-Which one of the following is not the lifting force of parcel of air?

050 1

Conduction Convection Frontal uplift. Convergence

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52-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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53-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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54-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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55-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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56-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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57-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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58-According to ISA the temperature in the lower part of the stratosphere

050 2128 The Atmosphere

increases with altitude first increases with altitude but decreases at higher altitudes is constant with altitude decreases with altitude

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59-The temperature lapse rate of the ICAO standard atmosphere in the troposphere is:

050 13607 The Atmosphere

3°C/1000 FT 2°C/1000 FT 2,5°C/1000 FT 6,5°C/1000 FT

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60-A temperature inversion indicates a state of the atmosphere which is

050 15588 The Atmosphere

absolutely unstable. absolutely stable. conditionally unstable. indifferent

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61-The temperature at 10000 FT in the ICAO Standard Atmosphere is:

050 3719 The Atmosphere

-20°C -35°C 0°C -5°C

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62-The lowest assumed temperature in the International Standard Atmosphere (ISA) is :

050 1

-44.7°C -100°C -273°C -56.5°C

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63-What is the density at sea level in the International Standard Atmosphere?

050 1

12.25g/m3 1.225g/m3 1225g/m3 122.5g/m3

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64-In standard atmosphere, 500 hPa level corresponds to:

050 1

18000 ft 12000 ft 10000 ft 15000 ft

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65-Which of the processes listed below can cause air to become saturated?

050 1

Heating Evaporation. Melting Condensation.

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66-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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67-Which of the following statements concerning the lifting of a parcel of air is correct ?

050 4025 Thermodynamics

Saturated parcels always cool at a rate of 0.65°C per 100m Unsaturated parcels cool more rapidly than saturated parcels Unsaturated parcels cool at a rate of 0.65°C per 100m Unsaturated parcels cool less rapidly than saturated parcels

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68-As a parcel of air warms, its ability to hold water vapor:

050 1

Increases Remains unaltered Decreases Depends, whether the parcel is rising or not

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69-In an area of converging air in low level

050 4065 Wind

clouds can not be formed convective clouds can be dissolved stratified clouds can be dissolved clouds can be formed

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70-What causes the highest percentage of the atmosphere lies under the 50% of lower Troposphere?

050 1

Radiated energy from the Sun. Low level winds. Gravity. Corriollis force.

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71-The rate of cooling of ascending saturated air is less than the rate of cooling of ascending unsaturated air because:

050 4140 Thermodynamics

water vapour doesn't cool as rapidly as dry air water vapour absorbs the incoming heat from the sun heat is released during the condensation process moist air is heavier than dry air

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72-Consider a parcel of air which is moved upwards in the surrounding air by an external force. Which one of the following situations describes instability?

050 16873 Thermodynamics

The parcel tends to return to its original altitude when it is released. The parcel tends to descend when it is released. It will move to, and maintain an altitude below its original altitude. The parcel tends to gain altitude after being released. The parcel tends to maintain its new altitude after being released.

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73-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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74-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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75-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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76-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of

050 10921 The Atmosphere

2°C per 1000 FT up to 36090 FT and will then increase at 0,3°C per 1000 FT up to 65617 FT 1,98°C per 1000 FT up to 36090 FT and will then rise at 0,3°C per 1000 FT up to 65617 FT when it will remain constant 1,98°C per 1000 FT up to 36090 FT after which it remains constant to 65617 FT 2°C per 1000 FT up to 65617 FT after which it will remain constant to 104987 FT

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77-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of

050 13730 The Atmosphere

2°C per 1000 FT up to 36090 FT and will then increase at 0,3°C per 1000 FT up to 65617 FT 1,98°C per 1000 FT up to 36090 FT after which it remains constant to 65617 FT 2°C per 1000 FT up to 65617 FT after which it will remain constant to 104987 FT 1,98°C per 1000 FT up to 36090 FT and will then rise at 0,3°C per 1000 FT up to 65617 FT when it will remain constant

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78-Which of the following combinations of pressure and temperature is correct in the ICAO standard atmosphere?

050 15486 The Atmosphere

700 hPa -8.4°C 300 hPa -50.5°C 200 hPa -62.3°C 500 hPa -21.1°C

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79-The upper wind and temperature chart of 250 hPa corresponds, in a standard atmosphere, to about

050 1778 Meteorological Information

30 000 FT 39 000 FT 32 000 FT 34 000 FT

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80-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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81-What is the atmosphering pressure at sea level in the International Standard Atmosphere?

050 1

29.29 inch hg 1012.35 hpa 101.25 hpa 1013.25hpa

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82-THE ICAO STANDARD ATMOSPHERE (ISA) assumes that, at mean sea-level,

050 1

temperature is 10°C, air pressure is 1225 hectopascals (millibars), and air density is 1000 gm/m3. air temperature is 15°C and air pressure is 1000 hectopascals (millibars) air temperature is 15°C, air pressure is 1013.25 hectopascals (millibars), and air density is 1.225 kg/m3. air temperature is 0°C, air pressure is 1000 hectopascals (millibars), and air density is 1225 gm/m3.

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83-In relation to the total weight of the atmosphere, the weight of the atmosphere between mean sea level and a height of 5500 m is

050 10897 The Atmosphere

25% 99% 1% 50%

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84-By volume, what percentage of the air in the lower troposphere consists of water vapour?

050 15462 The Atmosphere

5-10 % 20-30 % 0-5 % 10-15 %

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85-At approximately what flight level is the subtropical jet stream found?

050 1582 Wind Uncategorized

FL 400 FL 500 FL 200 FL 300

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86-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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87-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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88-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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89-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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90-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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91-In the lower layers of the atmosphere due to friction the wind changes direction towards the low pressure area because:

050 1099 Wind

turbulence is formed and pressure increases the pressure gradient increases turbulence is formed and pressure decreases wind speed decreases and therefore coriolis force decreases

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92-If the QFE at Locarno (200 metres above sea level) is 980 hPa, what is the approximate QNH ?

050 2247 The Atmosphere

1010 hPa 1005 hPa 1015 hPa 1000 hPa

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93-If the QNH at Locarno (200 metres above sea level) is 1015 hPa, what is the approximate QFE?

050 2249 Wind Uncategorized

1005 hPa 990 hPa 1000 hPa 995 hPa

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94-If the QNH at Locarno (200 metres above sea level) is 1025 hPa, what is the approximate QFE?

050 2250 The Atmosphere

1025 hPa 1005 hPa 1000 hPa 995 hPa

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95-If the QFE at Locarno (200 metres above sea level) is 1000 hPa, what is the approximate QNH?

050 2248 The Atmosphere

1035 hPa 1025 hPa 990 hPa 985 hPa

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96-If the QFE at an airport (200 metres above sea level) is 1000 hPa, what is the approximate QNH? (1 mb = 27 feet)

050 1

985 hPa 990 hPa 1035 hPa 1025 hPa

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97-In the ICAO Standard Atmosphere (ISA), the fall in pressura with height, close to sealevel, is approximately 1 millibar for every

050 1

36 feet 27 feet. 60 feet. 45 feet.

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98-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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99-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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100-In the ICAO standard atmosphere, which of the following alternatives indicates the correct vertical temperature distribution in the lowest 11 km?

050 15261 The Atmosphere

15°C at mean sea level, decreasing at 0.65°C per 100 metres. 15°C at mean sea level, decreasing at 0.65°C per 100 feet. 15.2°C at mean sea level, decreasing at 0.65°C per 100 metres. 13°C at mean sea level, decreasing at 2°C per 1000 feet.

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

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

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

4-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

5-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

6-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?

7-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?

8-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?

9-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?

10-A parcel of unsaturated air is lifted to just below the condensation level and then returned to its original level. What is the final temperature of the parcel of air?

11-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?

12-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

13-A moist but unsaturated parcel of air becomes saturated by

14-A parcel of air is said to be saturated if it has a relative humidity of:

15-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?

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

17-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?

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

19-A parcel of rising air stays unsaturated. Which of the following statements is correct?

20-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

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

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

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

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

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

26-What is, approximately, the temperature at 20000 FT in the ICAO Standard Atmosphere?

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

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

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

30-Rising air cools because

31-Rising air cools because

32-The total depth of the atmosphere is approximately

33-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?

34-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

35-Between mean sea level and a height of 20 km, the lowest temperature in the ICAO Standard Atmosphere (ISA) is:

36-The temperature at 3000 ft. above mean sea level is forecast to be 3°C. What is the deviation from ICAO Standard Atmosphere?

37-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?

38-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?

39-The QNH at an airfield located at mean sea level is 1022 hPa. The air temperature is not available. What is the QFF?

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

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

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

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

44-For both saturated and unsaturated air instability will occur when the

45-A sample of moist but unsaturated air may become saturated by

46-The temperature at 10000ft in the ICAO Standard Atmosphere

47-The most significant raising of the temperature of the atmosphere is

48-What is the lowest temperature in standard atmosphere?

49-When ...... in a parcel of air, relative humidity increases.

50-The reason for the cooling of the parcel of air during the adiabatic process is…

51-Which one of the following is not the lifting force of parcel of air?

52-The Variation of Air Density with Temperature:

53-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?

54-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?

55-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?

56-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?

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

58-According to ISA the temperature in the lower part of the stratosphere

59-The temperature lapse rate of the ICAO standard atmosphere in the troposphere is:

60-A temperature inversion indicates a state of the atmosphere which is

61-The temperature at 10000 FT in the ICAO Standard Atmosphere is:

62-The lowest assumed temperature in the International Standard Atmosphere (ISA) is :

63-What is the density at sea level in the International Standard Atmosphere?

64-In standard atmosphere, 500 hPa level corresponds to:

65-Which of the processes listed below can cause air to become saturated?

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

67-Which of the following statements concerning the lifting of a parcel of air is correct ?

68-As a parcel of air warms, its ability to hold water vapor:

69-In an area of converging air in low level

70-What causes the highest percentage of the atmosphere lies under the 50% of lower Troposphere?

71-The rate of cooling of ascending saturated air is less than the rate of cooling of ascending unsaturated air because:

72-Consider a parcel of air which is moved upwards in the surrounding air by an external force. Which one of the following situations describes instability?

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

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

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

76-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of

77-The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of

78-Which of the following combinations of pressure and temperature is correct in the ICAO standard atmosphere?