If you are flying at fl 100 in an air mass that is 10°c warmer than a standard ? [ Preparation civilian ]

Question 125-1 : +5°c +15°c 10°c 15°c

exemple 225 +5°c. — Admin .in standard atmosphere the decrease in temperature per 1000 feet is 2°c .in standard atmosphere temperature is 15°c at 0 ft .at fl100 temperature is 15°c 10 x 2°c = 5°c .air mass is 10°c warmer than standard . 5°c + 10°c = +5°c +5°c.

If you are flying at fl 120 and the outside temperature is 2°c at what ?

Question 125-2 : Fl 110 fl 130 fl 150 fl 90

exemple 229 Fl 110. — Admin .in standard atmosphere the decrease in temperature per 1000 feet is 2°c .at fl120 temperature is 2°c .1000 ft below temperature will be 2° warmer .1000 ft above temperature will be 2° colder .the 'freezing level' 0°c will be at fl 110 Fl 110.

An aircraft flying at fl 100 from marseille qnh 1012 hpa to palma de mallorca ?

Question 125-3 : The air at palma de mallorca is warmer than that at marseille the air at palma de mallorca is colder than that at marseille the altimeters are erroneous and need to be tested one of the two qnh values may be incorrect

exemple 233 The air at palma de mallorca is warmer than that at marseille. — Admin .case n°1 . 540.if temperature is the same between both locations the true altitude will be reduced over palma by 6 hpa around 162 ft .case n°2 The air at palma de mallorca is warmer than that at marseille.

During a flight over the sea at fl 100 from marseille qnh 1012 hpa to palma de ?

Question 125-4 : None the reason for the change is that the air around palma is warmer than the air around marseille have your altimeter checked because its readings are obviously wrong recheck the qnh because one of the qnh values must be wrong compensate by heading further to the left

exemple 237 None, the reason for the change is that the air around palma is warmer than the air around marseille — None, the reason for the change is that the air around palma is warmer than the air around marseille

During a flight over the sea at fl 100 from marseille qnh 1016 hpa to palma de ?

Question 125-5 : The air at marseille is warmer than that at palma de mallorca one of the qnh values must be wrong the altimeter is faulty the air at palma de mallorca is warmer than that at marseille

Admin .if the qnh remains unchanged and the true altitude is constantly decreasing the only reason is a reduction of the volume of the 'air mass' how an 'air mass' can contract .the temperature is decreasing and thus the density is increasing .the air at palma de mallorca is colder than that at marseille in other words air at marseille is warmer than that at palma de mallorca

During a flight over the sea at fl 135 the true altitude is 13500 feet local ?

Question 125-6 : It is colder than isa its average temperature is the same as isa it is warmer than isa there is insufficient information to make any assumption

exemple 245 It is colder than isa. — Admin .if you are flying at fl135 your subscale altimeter setting is 1013 hpa .if the local qnh is 1019 hpa and if you set your second altimeter with this value you will normally read more than 13500 ft .but you read today 13500 ft this is your true altitude it means that the air mass is colder than isa air mass is contracted It is colder than isa.

An aircraft is flying over the sea at fl 90 the true altitude is 9100 feet ?

Question 125-7 : There is insufficient information to make any assumption it is colder than isa it is warmer than isa its average temperature is the same as isa

Admin .you need to know the local qnh even if we know that the aircraft is flying flight levels 1013 hpa there is insufficient information to make any assumption .true altitude is 9100 ft do not mean that air mass is warmer than isa it could be because the local qnh is higher than 1013 hpa

An aircraft is flying over the sea at fl 120 with a true altitude of 12000 feet ?

Question 125-8 : Its average temperature is the same as isa it is colder than isa it is warmer than isa there is insufficient information to come to any conclusion

exemple 253 Its average temperature is the same as isa. — Its average temperature is the same as isa.

An aircraft is flying over the sea at fl 100 with a true altitude of 10000 feet ?

Question 125-9 : It is warmer than isa its average temperature is about isa it is colder than isa there is insufficient information to come to any conclusion

exemple 257 It is warmer than isa. — Admin .if air temperature is isa at fl 100 with a subscale setting of 1013 hpa when turning the subscale knob to the left to set 1003 in the window our indicated altitude will be .1013 1003 = 10 hpa.10 x 27 = 270 ft.10000 270 = 9730 ft.the question states that our true altitude is 10000 ft so to remain at 10000 ft when passing from fl100 1013 hpa to 10000 ft 1003 hpa the air must be warmer than isa .it means that we were at fl100 1013 hpa or 10270 ft 1003 hpa It is warmer than isa.

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

Question 125-10 : Troposphere lower stratosphere upper stratosphere ozone layer

The temperature at fl 80 is +6°c what will the temperature be at fl 130 if the ?

Question 125-11 : 4°c 6°c 0°c +2°c

exemple 265 -4°c. — Admin .the temperature lapse rates of the troposphere is mean value 0 65°c/100 m or 2°c/1000 ft .in isa temperature at fl80 should be 15° 2x8 = 1°c .as the current temperature at that level is +6°c you can say that at fl130 it is currently isa+7 .therefore at fl130 15° 2x13 = 11°c +7 from isa+7 = 4°c -4°c.

The temperature at fl 110 is 5°c what will the temperature be at fl 50 if the ?

Question 125-12 : +7°c +3°c 3°c 0°c

exemple 269 +7°c. — Admin .in isa temperature at fl110 should be 15° 2x11 = 7°c .as the current temperature at that fl is 5°c you can say that at fl110 it is currently isa+2 .therefore at fl50 15° 2x5 = 5°c +2 from isa+2 = 7°c +7°c.

The temperature at fl 160 is 22°c what will the temperature be at fl 90 if the ?

Question 125-13 : 8°c 4°c 0°c +4°c

exemple 273 -8°c. — Admin .the temperature lapse rates of the troposphere is mean value 0 65°c/100 m or 2°c/1000 ft .in isa temperature at fl160 should be 15° 2x16 = 17°c .as the current temperature at that level is 22°c you can say that at fl160 it is currently isa 5 .therefore at fl90 15° 2x9 = 3°c + 5 from isa 5 = 8°c -8°c.

A temperature of +15°c is recorded at an altitude of 500 metres above sea ?

Question 125-14 : +2°c +4°c 0°c 2°c

exemple 277 +2°c. — Admin .2°c/1000 ft = 6 5°c/1000 m.from 500 m to 2500 m temperature would drop by 6 5°c x 2 = 13°c .the temperature at the summit of the mountain will be 15°c 13°c = +2°c +2°c.

How would you characterise an air temperature of 15°c at the 700 hpa level ?

Question 125-15 : Low high within +/ 5°c of isa 20°c below standard

exemple 281 Low. — Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50. 700 hpa = fl100 .500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.isa temperature at fl100 is normally .15°c 2° x 10 = 5°c .we are 10° below isa the air temperature at this level is lower than standard Low.

An air temperature of 30°c at the 300 hpa level over central europe in summer ?

Question 125-16 : High low very low within +/ 5°c of isa

exemple 285 High. — Admin .300 hpa corresponds at flight level 300 .isa temperature at fl300 is 15º 2º x 30 = 45ºc.outside air temperature is 30°c instead of 45° air temperature is higher than standard temperature High.

How would you characterise an air temperature of 55°c at the 200 hpa level ?

Question 125-17 : Within +/ 5°c of isa high low very high

exemple 289 Within +/-5°c of isa. — Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390..at fl390 200 hpa isa temperature is 15°c 2°c x 39 = 63°c but the lowest temperature in the icao standard atmosphere isa is 56 5°c .thus with an air temperature of 55°c we are within +/ 5°c of isa Within +/-5°c of isa.

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

Question 125-18 : Inversion subsidence adiabatic advection

The station pressure used in surface weather charts is ?

Question 125-19 : Qff qfe qnh qne

exemple 297 Qff. — Admin .qff is obtained by taking the airfield pressure qfe and reducing it to sea level assuming the actual temperature at the airfield is constant isothermal down to that level this value is used by meteorologists on surface weather charts because it is more likely to accurately reflect actual conditions Qff.

Which fl corresponds with the 300 hpa pressure level ?

Question 125-20 : Fl 300 fl 50 fl 100 fl 390

exemple 301 Fl 300 — Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa Fl 300

Which fl corresponds with the 500 hpa pressure level ?

Question 125-21 : Fl 180 fl 390 fl 100 fl 160

exemple 305 Fl 180. — Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa Fl 180.

Which fl corresponds with the 700 hpa pressure level ?

Question 125-22 : Fl 100 fl 180 fl 300 fl 390

exemple 309 Fl 100. — Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa Fl 100.

Which fl corresponds with the 850 hpa pressure level ?

Question 125-23 : Fl 50 fl100 fl 300 fl 390

exemple 313 Fl 50. — Admin .there is a few questions in the exam that take information directly from that table below write these down on a sticky and have them on the wall beside you .1013 hpa = msl.850 hpa = fl50.700 hpa = fl100.500 hpa = fl180.300 hpa = fl300.200 hpa = fl390.any others you can interpolate between these and figure it out .the decrease of 1hpa/27ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at msl 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa Fl 50.

The qff at an airfield located 400 metres above sea level is 1016 hpa the air ?

Question 125-24 : More than 1016 hpa 1016 hpa less than 1016 hpa it is not possible to give a definitive answer

exemple 317 More than 1016 hpa. — Admin .qff is atmospheric pressure at sea level .qnh is the setting which will give airfield elevation when parked on the airfield .in cold conditions a column of air will shrink so the 'cold' qnh will be less than qff and the 'warm' qnh will be more than qff .this table will help for the exam . 539 More than 1016 hpa.

An aircraft is descending to land under ifr if the local qnh is 1009 hpa what ?

Question 125-25 : It will decrease it will increase it will remain the same it will not be affected

exemple 321 It will decrease. — Admin .at transition level you will reset your altimeter from 1013 hpa standard to qnh 1009 hpa . 541.you have to turn altimeter setting adjustement knob in a counter clockwise direction to decrease the indicated pressure .this will decrease the indicated altitude the needle moves in the same direction of the subscale knob It will decrease.

During the climb after take off the altimeter setting is adjusted at the ?

Question 125-26 : It will decrease it will increase it will remain the same it is not possible to give a definitive answer

exemple 325 It will decrease. — Admin .at transition altitude you will reset your altimeter from qnh to 1013 hpa standard . 541.you have to turn altimeter setting adjustement knob in a counter clockwise direction to decrease the indicated pressure 1023 hpa to 1013 hpa .this will decrease the indicated altitude the needle moves in the same direction of the subscale knob It will decrease.

During the climb after take off the altimeter setting is adjusted at the ?

Question 125-27 : It will increase it will decrease it will remain the same it is not possible to give a definitive answer

exemple 329 It will increase. — Admin .at transition altitude you will reset your altimeter to standard 1013 hpa . 514.you have to turn altimeter setting adjustement knob in a clockwise direction to increase the indicated pressure .this will increase the indicated altitude It will increase.

An aircraft is flying from point a to point b on the upper level contour chart ?

Question 125-28 : The true altitude will be higher at a than at b the true altitude will be higher at b than at a wind speed at a is higher than at b wind speed at paris is higher than at b

exemple 333 The true altitude will be higher at a than at b — Admin .point a is close to paris and the wind feather shows the wind is anti clockwise so it must be a low pressure if you follow the isobar around then b must be a low pressure as well but there are more isobars so it must be a 'lower' pressure .therefore you are flying from a low to lower pressure or practically from a high to a low true altitude must be higher at a The true altitude will be higher at a than at b

An aircraft is flying from point a to point b on the upper level contour chart ?

Question 125-29 : The true altitude will be higher at a than at b the true altitude will be higher at b than at a wind speed at a is higher than at b wind speed at a and at b is the same

exemple 337 The true altitude will be higher at a than at b. — Admin .if you stand with your back to the wind in the northern hemisphere low pressure is on your left buys ballot's law .with a wind coming from the west direction and you stand with your back to it low pressure is on your left . 542.on the annex a is on a higher contour line than b true altitude will be higher at a than at b The true altitude will be higher at a than at b.

An aircraft is flying from point a to point b on the upper level contour chart ?

Question 125-30 : The true altitude will be higher at b than at a the true altitude will be higher at a than at b wind speed at a and at b is the same wind speed at b is higher than at a

exemple 341 The true altitude will be higher at b than at a. — Admin .in southern hemisphere wind flows clockwise around a low . 543.close to point b we can suppose a low pressure area as stated on our drawing but it could be a high pressure area .a is at a lower pressure than in b the true altitude will be higher at b than at a The true altitude will be higher at b than at a.

You are planning to fly across a mountain range the chart recommends a minimum ?

Question 125-31 : 11520 feet 12210 feet 11250 feet 11790 feet

exemple 345 11520 feet. — Admin .the air mass is warmer than isa thus your true altitude will be greater than your indicated altitude .you only have to correct the air above the airport for the temperature deviation qnh is set correctly so to determine the true altitude/height the following rule of thumb called the '4% rule' shall be used the altitude/height changes by 4% for each 10°c temperature deviation from isa .4 x 1 x 12000 / 100 = 480 ft .as sait before your true altitude will be greater than your indicated altitude the recommended minimum true altitude is 12000 ft indicated altitude is lower .12000 480 = 11520 ft 11520 feet.

An aircraft lands at an airport airport elevation 540 ft qnh 993 hpa with the ?

Question 125-32 : 1080 ft 700 ft 380 ft 0 ft

exemple 349 1080 ft. — Admin .the qnh is less than isa so the true altitude will be less than the indicated .the true altitude is 540 ft and the pressure error is 1013 993 = 20 hpa x 27 ft/hpa = 540 ft .indicated altitude will be higher 540 + 540 = 1080 ft 1080 ft.

After landing at an aerodrome qnh 993 hpa it is noticed that the altimeter is ?

Question 125-33 : 660 feet 1200 feet 1740 feet 2280 feet

exemple 353 660 feet. — Admin .you simply have to turn the altimeter subscale setting knob counterclockwise .from 1013 2 to 993 .it's a decrease of indicated altitude by 20 hpa x 27 ft = 540 ft .1200 ft 540 ft = 660 ft 660 feet.

Select from the map the average temperature for the route zurich rome at fl ?

Question 125-34 : 9°c 13°c 6°c +5°c

exemple 357 -9°c. — Admin . 549.if you take in account the ' 8' located below the red ' 9' why you don't take in account the ' 3' located just below rome . 9 + 7 + 7 /3 = 7 66. 7 66°c at fl100 + 2°c for fl110 = 9 66°c -9°c.

Select from the map the average temperature for the route athens geneva at fl ?

Question 125-35 : 14°c 21°c 11°c 27°c

exemple 361 -14°c. — Admin .average temperature for the route athens to geneva is around 20°c 16+18+25 /3 at fl 180 .assuming a typical lapse rate of 2°c/1000ft at fl 150 it will be 6°c warmer . 20°c + 6°c = 14°c -14°c.

What is the deviation of the temperature at fl 140 above copenhagen compared to ?

Question 125-36 : 8°c colder than isa 4°c warmer than isa 8°c warmer than isa 12°c colder than isa

exemple 365 8°c colder than isa. — Admin .at fl180 above copenhagen temperature is 29°c .at fl180 in a standard atmosphere temperature is .15° 2° x 18 = 21°c .as the current temperature at that level is 29°c you can say that at fl180 it is currently isa 8°c .without other informations for fl140 we can only assume that the same temperature deviation occurs at fl140 8°c colder than isa.

Select from the map the average temperature for the route zurich lisboa at fl ?

Question 125-37 : 33°c 30°c 41°c 49°c

exemple 369 -33°c. — Admin .the chart is for fl240 . 550.36 + 38 + 42 + 43 + 42 + 43 + 43 = 287.287/7 = 41°c.+2°/1000 ft in standard atmopshere when descending .fl240 ==> fl200 4000 ft ==> +8°c . 41 + 8° = 33°c -33°c.

Select from the map the average temperature for the route geneva stockholm at ?

Question 125-38 : 47°c 55°c 63°c 51°c

exemple 373 -47°c. — Admin .this chart is given for fl300.at fl260 between geneva and stockholm average temperature is . 52 + 54 + 57 + 57 + 56 + 56 /6 = around 55°c .average temperature at fl260 is 8° warmer 2° per 1000 ft = 55°c + 8°c = 47°c -47°c.

Looking at the chart at what altitude above frankfurt would you expect the ?

Question 125-39 : Fl 360 fl 410 fl 330 fl 390

exemple 377 Fl 360. — Admin . 553.frankfurt is close to the 350 boxe answer fl360 is the best Fl 360.

If you are flying from zurich to shannon at fl 340 where will your cruising ?

Question 125-40 : Constantly in the stratosphere constantly in the troposphere first in the troposphere and later in the stratosphere in the stratosphere for part of time

exemple 381 Constantly in the stratosphere. — Admin . 555.all boxes on the chart indicate a level below fl340 on the zurich to shannon route Constantly in the stratosphere.

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