Index - Atpl Campus

100 item has been found

1-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

Similar Answers: Similar Questions:

2-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

Similar Answers: Similar Questions:

3-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

Similar Answers: Similar Questions:

4-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

Similar Answers: Similar Questions:

5-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

Similar Answers: Similar Questions:

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

050 3719 The Atmosphere

-20°C -35°C 0°C -5°C

Similar Answers: Similar Questions:

7-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

Similar Answers: Similar Questions:

8-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

Similar Answers: Similar Questions:

9-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.

Similar Answers: Similar Questions:

10-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.

Similar Answers: Similar Questions:

11-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

Similar Answers: Similar Questions:

12-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.

Similar Answers: Similar Questions:

13-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

Similar Answers: Similar Questions:

14-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

Similar Answers: Similar Questions:

15-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.

Similar Answers: Similar Questions:

16-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

Similar Answers: Similar Questions:

17-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

Similar Answers: Similar Questions:

18-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.

Similar Answers: Similar Questions:

19-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

Similar Answers: Similar Questions:

20-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.

Similar Answers: Similar Questions:

21-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.

Similar Answers: Similar Questions:

22-How does relative humidity and the dewpoint in an unsaturated air mass change with varying temperature?

050 1207 Thermodynamics

When temperature decreases, the relative humidity and the dewpoint remain constant. When temperature increases, the relative humidity decreases, and the dewpoint remains constant. When temperature increases, the relative humidity increases, and the dewpoint decreases. When temperature decreases, the relative humidity decreases, and the dewpoint increases.

Similar Answers: Similar Questions:

23-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

Similar Answers: Similar Questions:

24-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.

Similar Answers: Similar Questions:

25-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

Similar Answers: Similar Questions:

26-A vertical spacing of 1000 FT is the standard required separation between two FL. Under conditions of cold air advection (ISA -15°C), what would the true vertical separation be?

050 1578 The Atmosphere

Less than 1000 FT Without QNH information, it can not be determined It remains 1000 FT More than 1000 FT

Similar Answers: Similar Questions:

27-Daily variation of the surface temperature will:

050 1

Be at a minimum in calm conditions Be unaffected by a change of wind speed Decrease as wind speed increases Increase as the wind speed increases.

Similar Answers: Similar Questions:

28-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

Similar Answers: Similar Questions:

29-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

Similar Answers: Similar Questions:

30-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

Similar Answers: Similar Questions:

31-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

Similar Answers: Similar Questions:

32-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

Similar Answers: Similar Questions:

33-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

Similar Answers: Similar Questions:

34-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.

Similar Answers: Similar Questions:

35-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.

Similar Answers: Similar Questions:

36-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

Similar Answers: Similar Questions:

37-Surface temperature inversions are frequently generated by

050 10913 The Atmosphere

terrestrial radiation on a calm clear night compression causing the release of latent heat in a layer of stratiform cloud an unstable air mass causing convection currents and mixing of the atmosphere at lower levels gusting winds increasing surface friction during the day with consequent mixing at the lower levels

Similar Answers: Similar Questions:

38-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.

Similar Answers: Similar Questions:

39-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

Similar Answers: Similar Questions:

40-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

Similar Answers: Similar Questions:

41-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

Similar Answers: Similar Questions:

42-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

Similar Answers: Similar Questions:

43-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

Similar Answers: Similar Questions:

44-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

Similar Answers: Similar Questions:

45-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

Similar Answers: Similar Questions:

46-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

Similar Answers: Similar Questions:

47-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.

Similar Answers: Similar Questions:

48-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

Similar Answers: Similar Questions:

49-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

Similar Answers: Similar Questions:

50-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

Similar Answers: Similar Questions:

51-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

Similar Answers: Similar Questions:

52-Surface-based temperature inversions are common during

050 10914 The Atmosphere

cloud-free days in summer when the ground is dry cloudy days in winter when the ground is wet cloudy days in summer when the ground is wet cloud-free nights in winter when the ground is dry

Similar Answers: Similar Questions:

53-Around Paris on January 3rd at 1800 UTC, the surface temperature, under shelter, is 3°C. The sky is covered by 8 oktas of stratus. QNH is 1033 hPa. If the sky is covered all night, the minimum temperature of the night of January 3rd to January 4th should be

050 5534 The Atmosphere

significantly below 0°C. slightly above +3°C. slightly below +3°C. significantly above +3°C.

Similar Answers: Similar Questions:

54-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.

Similar Answers: Similar Questions:

55-When water evaporates into unsaturated air

050 4032 Thermodynamics

heat is released relative humidity is decreased heat is absorbed relative humidity is not changed

Similar Answers: Similar Questions:

56-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

Similar Answers: Similar Questions:

57-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

Similar Answers: Similar Questions:

58-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.

Similar Answers: Similar Questions:

59-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

Similar Answers: Similar Questions:

60-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)

Similar Answers: Similar Questions:

61-You intend to overfly a mountain range. The recommended minimum flight altitude is, according to the aviation chart, 15000 FT/AMSL. The air mass that you will fly through is on average 15°C warmer than the standard atmosphere. The altimeter is set to QNH (1023 hPa). At what altimeter reading will you effectively be at the recommended minimum flight altitude?

050 1556 The Atmosphere

15900 FT. 13830 FT. 14100 FT. 14370 FT.

Similar Answers: Similar Questions:

62-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.

Similar Answers: Similar Questions:

63-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.

Similar Answers: Similar Questions:

64-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

Similar Answers: Similar Questions:

65-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

Similar Answers: Similar Questions:

66-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

Similar Answers: Similar Questions:

67-In which of these temperature bands is ice most likely to form on the aircraft's surface?

050 454 Flight Hazards

0°C to -10°C +10°C to 0°C -35°C to -50°C -20°C to -35°C

Similar Answers: Similar Questions:

68-Which of the following is a common cause of ground or surface temperature inversion ?

050 67 The Atmosphere

Warm air being lifted rapidly aloft, in the vicinity of mountainous terrain. The movement of warm air under cold air. Heating of the air by subsidence Terrestrial radiation on a clear night with no or very light winds.

Similar Answers: Similar Questions:

69-You must make an emergency landing at sea. The QNH of a field on a nearby island with an elevation of 4000 FT is 1025 hPa and the temperature is -20°C. What is your pressure altimeter reading when landing if 1025 hPa is set in the subscale?

050 4192 The Atmosphere

Less than 0 FT 4000 FT 0 FT More than 0 FT, but less than 4000 FT

Similar Answers: Similar Questions:

70-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.

Similar Answers: Similar Questions:

71-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

Similar Answers: Similar Questions:

72-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

Similar Answers: Similar Questions:

73-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

Similar Answers: Similar Questions:

74-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

Similar Answers: Similar Questions:

75-Few 200 ft, Scattered 1200 ft, Broken 3500 ft, Overcast 10000 ft. How would that be reported in a METAR?

050 1

FEW002 SCT012 BKN035 OVC100 FEW002 SCT012 BKN035 OVC010 FEW020 SCT120 BKN350 OVC100 FEW002 SCT012 BKN035 OVC1000

Similar Answers: Similar Questions:

76-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

Similar Answers: Similar Questions:

77-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

Similar Answers: Similar Questions:

78-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.

Similar Answers: Similar Questions:

79-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

Similar Answers: Similar Questions:

80-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

Similar Answers: Similar Questions:

81-At a certain position, the temperature on the 300 hPa chart is -48°C; according to the tropopause chart, the tropopause is at FL 330. What is the most likely temperature at FL 350 ?

050 19 The Atmosphere

-50°C. -58°C. -54°C. -56,5°C.

Similar Answers: Similar Questions:

82-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

Similar Answers: Similar Questions:

83-When a mass of unsaturated air descends, what effect will it have on relative humidity?

050 1208 Thermodynamics

It remains constant. It decreases. It increases up to 100%, then remains stable. It increases.

Similar Answers: Similar Questions:

84-In unstable air, surface visibility is most likely to be restricted by

050 4135 Flight Hazards

haze drizzle low stratus showers of rain or snow

Similar Answers: Similar Questions:

85-When warm air moves over a colder surface, __________.

050 1

it rises. it becomes unstable. it becomes stable. it produces thunderstorms.

Similar Answers: Similar Questions:

86-When Air density will be lowest at the Earth's surface:

050 1

pressure is low and temperature is low pressure is high and temperature is low pressure is low and temperature is high pressure is high and temperature is high

Similar Answers: Similar Questions:

87-In unstable air, surface visibility is most likely to be restricted by

050 1

showers of rain or snow low stratus drizzle haze

Similar Answers: Similar Questions:

88-When cold air moves over a warmer surface, __________.

050 1

it becomes stable. it produces frontal fog. it becomes unstable. it sinks.

Similar Answers: Similar Questions:

89-Advection of very cold air over a warm sea current can cause:

050 13657 Clouds and Fog

frontal fog. no fog at all. steaming fog. advection fog.

Similar Answers: Similar Questions:

90-The temperature deviation from ISA (to the nearest °C) overhead Charleston (33°N 080°W) at FL 340 is

050 13585 CAT

-5 -7 +3 +5

Anex: Similar Answers: Similar Questions:

91-An aircraft flies into freezing rain in an area with a temperature below 0°C. The type of icing it will most likely encounter is

050 10857 Uncategorized Wind

granular frost rime ice clear ice hoar frost

Similar Answers: Similar Questions:

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

050 1576 The Atmosphere

FL 110 FL 100 FL 20 FL 80

Similar Answers: Similar Questions:

93-The type of icing that occurs in dense clouds with large supercooled drops that have a temperature of -5°C is most likely to be

050 4156 Flight Hazards

hoar frost rime ice cloudy ice clear ice

Similar Answers: Similar Questions:

94-If you are flying at FL 120 and the outside temperature is -2°C, at what altitude will the "freezing level" be?

050 2253 The Atmosphere

FL 110 FL 90 FL 150 FL 130

Similar Answers: Similar Questions:

95-The temperature at 2000ft AMSL is forecast to be +5°C: compared to the International Standard Atmosphere (ISA) this is:

050 1

ISA -6. lSA +6. ISA -4. ISA +5.

Similar Answers: Similar Questions:

96-You are approaching to an airmass with a temperature of 6 C at 10000ft. Which altitude should you be in order to avoid clear icing?

050 1

12000 ft 6000 ft 14000 ft 9000 ft

Similar Answers: Similar Questions:

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

050 13623 Uncategorized Wind

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

Anex: Similar Answers: Similar Questions:

98-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

Similar Answers: Similar Questions:

99-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

Similar Answers: Similar Questions:

100-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

Similar Answers: Similar Questions:

Notification

User Profile

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

2-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:

3-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:

4-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?

5-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 ?

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

7-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?

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

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

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

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

14-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?

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

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

17-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?

18-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?

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

20-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

21-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

22-How does relative humidity and the dewpoint in an unsaturated air mass change with varying temperature?

23-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?

24-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?

25-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?

26-A vertical spacing of 1000 FT is the standard required separation between two FL. Under conditions of cold air advection (ISA -15°C), what would the true vertical separation be?

27-Daily variation of the surface temperature will:

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

29-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:

30-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?

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

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

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

34-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?

35-The Variation of Air Density with Temperature:

36-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?

37-Surface temperature inversions are frequently generated by

38-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?

39-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?

40-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?

41-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?

42-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?

43-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

44-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?

45-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?

46-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

47-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?

48-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?

49-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?

50-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?

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

52-Surface-based temperature inversions are common during

53-Around Paris on January 3rd at 1800 UTC, the surface temperature, under shelter, is 3°C. The sky is covered by 8 oktas of stratus. QNH is 1033 hPa. If the sky is covered all night, the minimum temperature of the night of January 3rd to January 4th should be

54-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 ?

55-When water evaporates into unsaturated air

56-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?

57-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?

58-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?

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

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

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

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

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

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

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

67-In which of these temperature bands is ice most likely to form on the aircraft's surface?

68-Which of the following is a common cause of ground or surface temperature inversion ?

69-You must make an emergency landing at sea. The QNH of a field on a nearby island with an elevation of 4000 FT is 1025 hPa and the temperature is -20°C. What is your pressure altimeter reading when landing if 1025 hPa is set in the subscale?

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

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

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

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

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

75-Few 200 ft, Scattered 1200 ft, Broken 3500 ft, Overcast 10000 ft. How would that be reported in a METAR?

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

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

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

79-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

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

81-At a certain position, the temperature on the 300 hPa chart is -48°C; according to the tropopause chart, the tropopause is at FL 330. What is the most likely temperature at FL 350 ?

23-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?