Index - Atpl Campus

100 item has been found

1-An aircraft is flying over the sea at FL 90; the true altitude is 9100 feet; local QNH is unknown. What assumption, if any, can be made about the air mass in which the aircraft is flying ?

050 2258 The Atmosphere

There is insufficient information to make any assumption Its average temperature is the same as ISA It is warmer than ISA It is colder than ISA

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

050 2260 The Atmosphere

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

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3-An aircraft is flying over the sea at FL 120, with a true altitude of 12000 feet; local QNH is 1013 hPa. What assumption, if any, can be made about the air mass in which the aircraft is flying ?

050 2259 The Atmosphere

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

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4-During a flight over the sea at FL 135, the true altitude is 13500 feet; local QNH is 1019 hPa. What information, if any, can be gained about the air mass in which the aircraft is flying?

050 2257 The Atmosphere

Its average temperature is the same as ISA It is colder than ISA There is insufficient information to make any assumption It is warmer than ISA

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5-During a flight over the sea at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1012 hPa), the true altitude is constantly increasing. What action, if any, should be taken ?

050 2255 The Atmosphere

Compensate by heading further to the left Recheck the QNH because one of the QNH values must be wrong 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

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6-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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7-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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8-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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9-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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10-You are planning to fly across a mountain range. The chart recommends a minimum altitude of 12000 feet above mean sea level. The air mass you will be flying through is an average 10°C warmer than ISA. Your altimeter is set to 1023 hPa (QNH of a nearby airport at nearly sea level). What altitude will the altimeter show when you have reached the recommended minimum altitude?

050 2522 The Atmosphere

12210 feet 11520 feet 11790 feet 11250 feet

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

050 1

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

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12-During a flight over the sea at FL 100 from Marseille (QNH 1016 hPa) to Palma de Mallorca (QNH 1016 hPa), the true altitude is constantly decreasing. What is the probable reason for this ?

050 2256 The Atmosphere

The air at Marseille is warmer than that at Palma de Mallorca The air at Palma de Mallorca is warmer than that at Marseille One of the QNH values must be wrong The altimeter is faulty

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

050 12823 Uncategorized Wind

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

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14-An aircraft flying at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1006 hPa) experiences no change to true altitude. The reason for this is that:

050 2254 The Atmosphere

the air at Palma de Mallorca is colder than that at Marseille the air at Palma de Mallorca is warmer than that at Marseille one of the two QNH values may be incorrect the altimeters are erroneous, and need to be tested

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15-You are flying at FL 130, and your true altitude is 12000 FT. What is the temperature deviation from that of the standard atmosphere at FL 130 (QNH 1013,2 hPa) ?

050 1557 The Atmosphere

ISA -20°C ISA +12°C ISA +20°C ISA +/-0°C

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16-You are flying FL100 in an airmass which is 15°C colder than ISA, local QNH 983. What would the true altitude be?

050 1

11.410 ft 10.210 ft 8.590 ft 10.000 ft

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17-Whilst flying at FL 180 on the northern hemisphere an aircraft experiences right drift. What effect, if any, will this have on the aircraft's true altitude ?

050 1236 Wind

It remains constant. Without knowing the pressure change this question cannot be answered. It decreases It increases.

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18-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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19-An aircraft is flying at FL 80. The local QNH is 1000 hPa. After the second altimeter has been adjusted to the local QNH, the reading will be approximately

050 1772 The Atmosphere

8350 FT. 8600 FT. 8000 FT. 7650 FT.

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

050 15416 The Atmosphere

30000 ft 27000 ft 31500 ft 28500 ft

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21-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.

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22-An aircraft is flying at FL 180 in the northern hemisphere with a crosswind from the left. Which of the following is correct concerning its true altitude ?

050 4163 Wind Uncategorized

It decreases It remains constant Without knowing temperatures at FL 180 this question can not be answered. It increases

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23-If you are flying from Zurich to London at FL 240, what conditions can you expect at cruising altitude?

050 2698 CAT

CAT for the first half of the flight Flight largely in cloud; no turbulence Moderate or severe turbulence and icing Prolonged severe turbulence and icing throughout the flight

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24-What degree of turbulence, if any, is likely to be encountered while flying through a cold front in the summer over Central Europe at FL 100?

050 1251 Wind

Moderate turbulence in NS cloud. Severe turbulence in CB cloud. Light turbulence in ST cloud. Light turbulence in CB cloud.

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25-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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26-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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27-You are flying at FL 340 on the northern hemisphere. The wind is geostrophic and there is a cross wind from the right all the time. Your true altitude will

050 10980 The Atmosphere

increase, only if the temperature at your flight level is rising on your route increase decrease decrease, only if the pressure at the surface is decreasing on your route

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

050 1548 The Atmosphere

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

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29-What type of weather can usually be expected in a polar maritime air mass over central Europe in the daytime during summer?

050 12818 Wind Uncategorized

Drizzle and low stratus. Continuous rain and poor visibility. Sky clear. Showers and good visibility.

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30-What type of weather can usually be expected in a polar maritime air mass over Central Europe in the daytime during summer?

050 15786 Air Masses and Fronts

Continuous rain and poor visibility. Sky clear. Showers and good visibility. Drizzle and low stratus.

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31-During a flight at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1015 hPa), an aircraft remains at a constant true altitude. The reason for this is that:

050 1549 The Atmosphere

the air at Marseille is colder than that at Palma de Mallorca. one of the two QNH values may be incorrect. the altimeters are erroneous, and need to be tested. the air at Marseille is warmer than that at Palma de Mallorca.

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32-When flying at 5000 feet in the northern hemisphere over plains (flat country) with an anticyclone on the left and a depression on the right, the wind will be

050 10955 Wind

from the right. a head wind. a tail wind. from the left.

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33-If the QFE at ÇORLU (660 feet above sea level) is 980 hPa, what is the approximate QNH ? (1 mb= 30 feet)

050 1

1002 hPa 1015 hPa 998 hPa 1010 hPa

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34-Which of the following is true concerning an aircraft that is flying at FL180 in the northern hemisphere, where wind is geostrophic and the true altitude remains constant ?

050 4172 Wind

There is no cross wind There is a cross wind from the right Without knowing temperature at FL 180 this question can not be answered There is a cross wind from the left

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35-When flying towards a low pressure system at a constant indicated altitude, the true altitude will be;

050 1

higher than indicated. the same as indicated, lower than indicated. lower than indicated at first then the same as indicated later.

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36-If you are flying from Zurich to Shannon at FL 340, where will your cruising altitude be?

050 2704 CAT

In the stratosphere for part of time Constantly in the stratosphere First in the troposphere and later in the stratosphere Constantly in the troposphere

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37-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

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38-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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39-An aircraft is flying from south to north, above the polar front jet stream, at FL 400 in the southern hemisphere. What change, if any, in temperature will be experienced ?

050 1566 Wind

It decreases and then increases. It stays the same. It increases. It decreases.

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40-What is the relationship, if any, between QFE and QNH at an airport situated 50 FT below sea level?

050 1547 The Atmosphere

QFE is greater than QNH. No clear relationship exists. QFE is smaller than QNH. QFE equals QNH.

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41-QNH 1025 hPa at an altitude of 660 feet AMSL: What will the approximate QFE be? (Assume 1 mb=30 ft)

050 1

1010 hPa 990 hPa 1003 hPa 1050 hPa

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

050 10940 Flight Hazards

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

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43-Which type of air mass never occurs over central Europe ?

050 12863 Air Masses and Fronts

Equatorial air Tropical air Polar air Arctic air

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44-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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45-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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46-An altimeter adjusted to 1013 hPa indicates an altitude of 3600 FT. Should this altimeter be adjusted to the local QNH value of 991 hPa, the altitude indicated would be

050 1770 The Atmosphere

4278 FT. 3006 FT. 4194 FT. 2922 FT.

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

050 2712 Flight Hazards

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

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48-Which weather condition lowers true altitude as compared to pressure altitude to a position where flight over mountains could be dangerous?

050 1249 The Atmosphere

Cold high. Warm high. Warm depression. Cold low.

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49-Which of the following statements is true of the dew point of an air mass?

050 10968 Air Masses and Fronts

It can be used together with the air pressure to estimate the air mass's relative humidity It can be higher than the temperature of the air mass It can be used to estimate the air mass's relative humidity even if the air temperature is unknown It can only be equal to, or lower, than the temperature of the air mass

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50-Which of the following statements is true of the dew point of an air mass?

050 2541 Air Masses and Fronts

It can only be equal to, or lower, than the temperature of the air mass It can be used to estimate the air mass's relative humidity even if the air temperature is unknown It can be higher than the temperature of the air mass It can be used together with the air pressure to estimate the air mass's relative humidity

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51-An aircraft flying at FL 45 (OAT 6°C) obtains a reading of 1860 ft on its radio altimeter (ground elevation 3090 ft). What is the value of the QNH, to the nearest hPa, at that point?

050 10858 The Atmosphere

1030 1042 996 1013

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52-An air mass which originates over the North Atlantic between 50 and 70 degrees north and is moving in over Scandinavia is called

050 15785 Air Masses and Fronts

continental polar air. maritime arctic air. continental arctic air. maritime polar air.

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53-An aircraft is flying in the southern hemisphere at low altitude (less than 2000 feet) and going directly away from a centre of low pressure. What direction, relative to the aircraft, does the wind come from ?

050 1092 Wind

From the left and slightly on the nose From the left and slightly on the tail From the right and slightly on the nose From the right and slightly on the tail

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54-An aircraft is descending to land under IFR. If the local QNH is 1009 hPa, what will happen to the altitude reading when the altimeter is reset at the transition level ?

050 2513 The Atmosphere

It will increase It will remain the same It will not be affected It will decrease

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55-If you have to fly through a warm front when freezing level is at 10000 feet in the warm air and at 2000 feet in the cold air, at which altitude is the probability of freezing rain the lowest ?

050 2177 Air Masses and Fronts

3000 feet 12000 feet 5000 feet 9000 feet

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56-What are the typical differences with regard to the temperature and humidity between an air mass with its origin in the Azores and an air mass with its origin over northern Russia ?

050 1253 Air Masses and Fronts

The air of the Azores is warmer and more humid than the North-Russian air. The North-Russian air is warmer and dryer than the air of the Azores. The North-Russian air is colder and more humid than the air of the Azores. The air of the Azores is warmer and dryer than the North-Russian air.

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57-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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58-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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59-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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60-You are flying with an outside air temperature of -12°C and a TAS of 250 kt at FL 150 through 8 oktas NS. What type and degree of icing is most probable?

050 226 Flight Hazards

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

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61-In wintertime stratus is often formed when warm maritime air moves over cold land. How can such clouds be classified?

050 16550 Clouds and Fog

Convective clouds. Turbulence clouds. Orographic clouds. Frontal clouds.

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62-After landing at an aerodrome (QNH 993 hPa) it is noticed that the altimeter is still set to 1013,2 hPa and that it reads 1200 feet. What is the elevation of the aerodrome above mean sea level ?

050 2524 The Atmosphere

2280 feet. 1200 feet. 660 feet. 1740 feet.

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63-An aircraft flies at a constant indicated altitude from airfield A (QNH= 1009 hPA) to airfield B (QNH= 1019 hPA) . If the subscale is not reset from 1009, what would be expected when over airfield B?

050 1

The indicated altitude would be more than actual altitude. The indicated altitude may be greater or less depending on the airfield elevation. The indicated altitude would be less than actual altitude. The indicated altitude would be the same as actual altitude.

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64-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.

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65-An air mass is:

050 13652 Air Masses and Fronts

a large body of air with temperature and humidity constant in the vertical. a large body of air within which the temperature and humidity is uniform in horizontal and vertical planes. an extensive body of air within which the temperature and humidity in horizontal planes are practically uniform. a body of air with a volume of not more than thousand cubic kilometres.

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66-The pressure altitude is equal to the true altitude if

050 4191 The Atmosphere

standard atmospheric conditions occur the outside air temperature is standard for that height the indicated altitude is equal to the pressure altitude the air pressure is 1013.25 hPa at the surface

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67-During the climb after take-off, the altimeter setting is adjusted at the transition altitude. If the local QNH is 966 hPa, what will happen to the altimeter reading during the resetting procedure?

050 2515 The Atmosphere

It is not possible to give a definitive answer It will decrease It will increase It will remain the same

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68-During the climb after take-off, the altimeter setting is adjusted at the transition altitude. If the local QNH is 1023 hPa, what will happen to the altimeter reading during the resetting procedure ?

050 2514 The Atmosphere

It will decrease It will increase It is not possible to give a definitive answer It will remain the same

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69-An aircraft is flying through the Alps on a very cold winter's day. The regional QNH is 1013 hPa. During the flight, you circle around a mountain at an altitude of its summit. What reading will the aneroid altimeter give, compared to the elevation of the summit?

050 14145 The Atmosphere

There is insufficient information to come to a conclusion The same altitude as the elevation of the summit A lower altitude than the elevation of the summit A higher altitude than the elevation of the summit

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70-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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71-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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72-Which of the following phenomena can provide the initial lifting leading to air mass thunderstorms?

050 10973 Flight Hazards

Mountain waves Low level wind shear Advection of cold air over a warm sea Advection of warm air over a cold sea

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73-A conditionally unstable air mass is forced to ascend a mountain slope. What type of clouds can be expected?

050 16708 Flight Hazards

Stratiform clouds with a temperature inversion. Clouds with considerable vertical development and associated turbulence. Stratiform clouds with considerable turbulence. Layer-like clouds with little vertical development.

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74-An unstable air mass is forced to ascend a mountain slope. What type of clouds can be expected?

050 13666 Wind Uncategorized

Stratiform clouds with a temperature inversion. Clouds with considerable vertical development and associated turbulence. Layer-like clouds with little vertical development. Stratiform clouds with considerable turbulence.

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

050 2175 Clouds and Fog

Radiation fog Frontal fog Steam fog Advection fog

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76-A piston engine aircraft with carburator flying in clear air may be subjected to the accretion of:

050 1

Rime ice. Clear ice. Precipitation icing. Carburetor ice.

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77-The turbulence which occurs at high flight levels (above FL 250) is mainly of the type Clear Air Turbulence. In what way can moderate to severe Clear Air Turbulence affect an aircraft, the flight and the passengers?

050 4266 Flight Hazards

The turbulence is wave like which makes the flight unpleasant for the passengers but the manoeuvring will not be affected essentially. The turbulence can be resembled with the roughness of a washing-board (small scale) and will not have influence on the aircraft and its solidity, but will make flight a little more difficult. The passengers will seldom notice anything of this turbulence. The turbulence is a small scale one and can cause damage. The manoeuvring of the aircraft will be made more difficult or even impossible. For the passengers the flight will be unpleasant. The turbulence is a large scale one (waving) so that the aircraft will be difficult to manoeuvre. The passengers will feel some discomfort.

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78-The Variation of Air Density with Altitude:

050 1

as altitude increases, air density stays constant altitude does not effect. as altitude increases, air density decreases as altitude increases, air density increases

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79-An aircraft is approaching a cold front from the warm air mass side at FL 270 and experiencing moderate to severe turbulence. A jet stream is forecast to be at FL 310. The shortest way to get out of this turbulence is by:

050 2171 Flight Hazards

Climbing Descending Maintain FL 270 Turn right

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

050 13640 Uncategorized Wind

4865 FT 4325 FT 3515 FT 4190 FT

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81-On a route segment from A to B the highest terrain elevation is approximately 200 feet. For an instrument flight the minimum obstacle clearance is 1000 feet. The subscale of the altimeter is set to the local QNH of 1013 hPa and the temperature on the ground is -5°C. Assume a standard temperature lapse rate. What is the approximate minimum acceptable altimeter indication during the flight on this route segment?

050 15265 The Atmosphere

1100 feet. 1300 feet. 1000 feet. 1400 feet.

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82-An air mass is stable when

050 4149 Wind Uncategorized

the lapse rate is 1°C per 100 m temperature in a given area drops off very rapidly with height pressure is constant lifted air returns to its original level

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83-An air mass is unstable when

050 4148 Uncategorized Wind

temperature increases with height pressure shows a marked variation over a given horizontal area temperature and humidity are not constant an ascending parcel of air continues to rise to a considerable height.

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84-"An aircraft flying at low level in the vicinity of a range of hills across which a strong wind is blowing may experience: 1- Severe turbulence below any rotor zone. 2- Downdraughts which may completely overcome the rate of climb of some low powered light aircraft. 3- A greater than normal risk of icing in cloud over the crest of the hills."

050 1

only 1 and 3 are correct. 1, 2 and 3 are correct. only 1 and 2 are correct. only 2 and 3 are correct.

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85-What wind is forecast at FL 390 over Paris ?

050 1693 CAT

030/40 190/40 210/40 240/20

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86-Steaming fog (arctic sea smoke) occurs in air

050 4089 Clouds and Fog

with cold mass properties that is stable with warm mass properties that is absolutely stable

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87-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

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88-What types of cloud will you see flying at FL 50 towards a warm front?

050 1095 Air Masses and Fronts

At some 800 km CS, later AS, and at some 300 km NS until the front At some 500 km AS, later CS and at some 80 km before the front CB At some 500 km from the front, groups of CB, later at some 250 km thickening AS Mainly clear skies. At some 100 km from the front NS begins

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89-You are flying in the southern hemisphere at FL 180 from east to west. If the wind at FL 180 is southerly, which of the following statements is correct?

050 14943 Wind

The true altitude remains constant. The true altitude is increasing. A statement on altitude changes cannot be given without information on temperature. The true altitude is decreasing.

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90-Which type of fog can NOT be formed over water?

050 10978 Clouds and Fog

Radiation fog Advection fog Frontal fog Arctic smoke

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91-What wind direction will occur over the sea at point F?

050 16517 Air Masses and Fronts

Northwest South Southeast Northeast

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

050 1

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

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

050 1

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

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94-An aircraft flying in the southern hemisphere at 2000 feet, has to turn to the right in order to allow for drift. In which direction, relative to the aircraft, is the centre of low pressure ?

050 2530 Wind

To the left. To the right. Behind. In front.

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

050 2500 The Atmosphere

0°C +4°C -4°C -8°C

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

050 15440 The Atmosphere

4865 ft 4190 ft 3515 ft 4325 ft

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97-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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98-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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99-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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100-An unstable air mass will normally be characterised by

050 10866 Air Masses and Fronts

stratiform cloud continuous light rain from medium level layer cloud poor visibility due to haze at the lower levels cumuliform cloud and good visibility except in precipitation

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1-An aircraft is flying over the sea at FL 90; the true altitude is 9100 feet; local QNH is unknown. What assumption, if any, can be made about the air mass in which the aircraft is flying ?

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

3-An aircraft is flying over the sea at FL 120, with a true altitude of 12000 feet; local QNH is 1013 hPa. What assumption, if any, can be made about the air mass in which the aircraft is flying ?

4-During a flight over the sea at FL 135, the true altitude is 13500 feet; local QNH is 1019 hPa. What information, if any, can be gained about the air mass in which the aircraft is flying?

5-During a flight over the sea at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1012 hPa), the true altitude is constantly increasing. What action, if any, should be taken ?

6-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?

7-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?

8-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?

9-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?

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

12-During a flight over the sea at FL 100 from Marseille (QNH 1016 hPa) to Palma de Mallorca (QNH 1016 hPa), the true altitude is constantly decreasing. What is the probable reason for this ?

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

14-An aircraft flying at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1006 hPa) experiences no change to true altitude. The reason for this is that:

15-You are flying at FL 130, and your true altitude is 12000 FT. What is the temperature deviation from that of the standard atmosphere at FL 130 (QNH 1013,2 hPa) ?

16-You are flying FL100 in an airmass which is 15°C colder than ISA, local QNH 983. What would the true altitude be?

17-Whilst flying at FL 180 on the northern hemisphere an aircraft experiences right drift. What effect, if any, will this have on the aircraft's true altitude ?

18-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?

19-An aircraft is flying at FL 80. The local QNH is 1000 hPa. After the second altimeter has been adjusted to the local QNH, the reading will be approximately

20-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:

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

22-An aircraft is flying at FL 180 in the northern hemisphere with a crosswind from the left. Which of the following is correct concerning its true altitude ?

23-If you are flying from Zurich to London at FL 240, what conditions can you expect at cruising altitude?

24-What degree of turbulence, if any, is likely to be encountered while flying through a cold front in the summer over Central Europe at FL 100?

25-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?

26-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?

27-You are flying at FL 340 on the northern hemisphere. The wind is geostrophic and there is a cross wind from the right all the time. Your true altitude will

28-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?

29-What type of weather can usually be expected in a polar maritime air mass over central Europe in the daytime during summer?

30-What type of weather can usually be expected in a polar maritime air mass over Central Europe in the daytime during summer?

31-During a flight at FL 100 from Marseille (QNH 1012 hPa) to Palma de Mallorca (QNH 1015 hPa), an aircraft remains at a constant true altitude. The reason for this is that:

32-When flying at 5000 feet in the northern hemisphere over plains (flat country) with an anticyclone on the left and a depression on the right, the wind will be

33-If the QFE at ÇORLU (660 feet above sea level) is 980 hPa, what is the approximate QNH ? (1 mb= 30 feet)

34-Which of the following is true concerning an aircraft that is flying at FL180 in the northern hemisphere, where wind is geostrophic and the true altitude remains constant ?

35-When flying towards a low pressure system at a constant indicated altitude, the true altitude will be;

36-If you are flying from Zurich to Shannon at FL 340, where will your cruising altitude be?

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

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

39-An aircraft is flying from south to north, above the polar front jet stream, at FL 400 in the southern hemisphere. What change, if any, in temperature will be experienced ?

40-What is the relationship, if any, between QFE and QNH at an airport situated 50 FT below sea level?

41-QNH 1025 hPa at an altitude of 660 feet AMSL: What will the approximate QFE be? (Assume 1 mb=30 ft)

42-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?

43-Which type of air mass never occurs over central Europe ?

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

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

46-An altimeter adjusted to 1013 hPa indicates an altitude of 3600 FT. Should this altimeter be adjusted to the local QNH value of 991 hPa, the altitude indicated would be

47-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?

48-Which weather condition lowers true altitude as compared to pressure altitude to a position where flight over mountains could be dangerous?

49-Which of the following statements is true of the dew point of an air mass?

50-Which of the following statements is true of the dew point of an air mass?

51-An aircraft flying at FL 45 (OAT 6°C) obtains a reading of 1860 ft on its radio altimeter (ground elevation 3090 ft). What is the value of the QNH, to the nearest hPa, at that point?

52-An air mass which originates over the North Atlantic between 50 and 70 degrees north and is moving in over Scandinavia is called

53-An aircraft is flying in the southern hemisphere at low altitude (less than 2000 feet) and going directly away from a centre of low pressure. What direction, relative to the aircraft, does the wind come from ?

54-An aircraft is descending to land under IFR. If the local QNH is 1009 hPa, what will happen to the altitude reading when the altimeter is reset at the transition level ?

55-If you have to fly through a warm front when freezing level is at 10000 feet in the warm air and at 2000 feet in the cold air, at which altitude is the probability of freezing rain the lowest ?

56-What are the typical differences with regard to the temperature and humidity between an air mass with its origin in the Azores and an air mass with its origin over northern Russia ?

57-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?

58-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?

59-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?

60-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?

61-In wintertime stratus is often formed when warm maritime air moves over cold land. How can such clouds be classified?

62-After landing at an aerodrome (QNH 993 hPa) it is noticed that the altimeter is still set to 1013,2 hPa and that it reads 1200 feet. What is the elevation of the aerodrome above mean sea level ?

63-An aircraft flies at a constant indicated altitude from airfield A (QNH= 1009 hPA) to airfield B (QNH= 1019 hPA) . If the subscale is not reset from 1009, what would be expected when over airfield B?

65-An air mass is:

66-The pressure altitude is equal to the true altitude if

67-During the climb after take-off, the altimeter setting is adjusted at the transition altitude. If the local QNH is 966 hPa, what will happen to the altimeter reading during the resetting procedure?

68-During the climb after take-off, the altimeter setting is adjusted at the transition altitude. If the local QNH is 1023 hPa, what will happen to the altimeter reading during the resetting procedure ?

69-An aircraft is flying through the Alps on a very cold winter's day. The regional QNH is 1013 hPa. During the flight, you circle around a mountain at an altitude of its summit. What reading will the aneroid altimeter give, compared to the elevation of the summit?

70-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?

71-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?

72-Which of the following phenomena can provide the initial lifting leading to air mass thunderstorms?

73-A conditionally unstable air mass is forced to ascend a mountain slope. What type of clouds can be expected?

74-An unstable air mass is forced to ascend a mountain slope. What type of clouds can be expected?

75-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 ?

76-A piston engine aircraft with carburator flying in clear air may be subjected to the accretion of:

77-The turbulence which occurs at high flight levels (above FL 250) is mainly of the type Clear Air Turbulence. In what way can moderate to severe Clear Air Turbulence affect an aircraft, the flight and the passengers?

78-The Variation of Air Density with Altitude:

79-An aircraft is approaching a cold front from the warm air mass side at FL 270 and experiencing moderate to severe turbulence. A jet stream is forecast to be at FL 310. The shortest way to get out of this turbulence is by:

80-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?

96-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?