atpl/oxford/met/ch9

Question 1

MSA given as 12,000ft, flying over mountains in temperatures +9°C, QNH set as 1023 (obtained from a nearby airfield). What will the true altitude be when 12,000ft is reached?

Answer 1

12,864

Question 2

When flying at FL180 in the Southern Hemisphere you experience a left to right crosswind. What is happening to your true altitude if indicated altitude is constant?

Answer 2

Decreasing

Question 3

Which of these would cause your true altitude to decrease with a constant indicated altitude?

Answer 3

Cold/Low

Question 4

You are flying in an atmosphere which is warmer than ISA, what might you expect?

Answer 4

True altitude to be higher than Indicated altitude

Question 5

The QNH is 1030 hPa and at the Transition Level you set the SPS. What happens to your indicated altitude (assume 27ft per 1 hPa)?

Answer 5

Drops by 459 ft

Question 6

How do you calculate the lowest useable flight level?

Answer 6

c. Highest QNH and highest temperature above ISA

Question 7

QNH is 1003. At FL100 true altitude is 10,000ft. Is it

Answer 7

Warmer than ISA

Question 8

How is QNH determined from QFE?

Answer 8

Using the elevation

Question 9

QFE is 1000hPa with an airfield elevation of 200m AMSL. What is QNH? (use 8 m per hPa)

Answer 9

1025 HPa

Question 10

Which of the following is true? QNH is:

Answer 10

Never 1013.25 hPa

Question 11

QNH is 1030. Aerodrome is 200m AMSL. What is QFF?

Answer 11

Not enough info

Question 12

If an Aerodrome is 1500ft AMSL on QNH 1038, what will the actual height AGL to get to FL75 be?

Answer 12

6675 ft

Question 13

Altimeter set to 1023 at aerodrome. On climb to altitude the SPS is set at transition altitude. What will indication on altimeter do on resetting to QNH?

Answer 13

Increase

Question 14

What temperature and pressure conditions would be safest to ensure that your flight level clears all the obstacles by the greatest margin?

Answer 14

Temp more than or equal to ISA and a QNH greater than 1013

Question 15

Flying at FL 135 above the sea, the Radio Altimeter indicates a true altitude of 13500 ft. The local QNH is 1019 hPa. Hence the crossed air mass is, on average,

Answer 15

Colder than ISA

Question 16

An airfield has an elevation of 540ft with a QNH of 993mb. An aircraft descends and lands at the airfield with 1013mb set. What will its altimeter read on landing?

Answer 16

1080ft

Question 17

When is pressure altitude equal to true altitude?

Answer 17

In standard conditions

Question 18

What is the relationship between QFE and QNH at an airport 50ft below MSL?

Answer 18

QFE > QNH

Question 19

You are flying at FL160 with an OAT of -27°C. QNH is 1003 hPa. What is your true altitude?

Answer 19

b) 15,090 ft

Question 20

Up to FL 180 ISA Deviation is ISA +10°C. What is the actual depth of the layer between FL 60 and FL 120?

Answer 20

b. 6240 ft

Question 21

Up to FL 180 ISA Deviation is ISA -10°C. What is the actual depth of the layer between FL 60 and FL 120?

Answer 21

C. 5760 ft

Question 22

What condition would cause your indicated altitude to be lower than that being actually flown?

Answer 22

temperature higher than standard

Question 23

You fly over the sea at FL 90, your true altitude is 9100 ft and QNH is unknown. What can be said about the atmosphere temperature?

Answer 23

Nothing, insufficient information.

Question 24

You are flying at FL 100 in an airmass that is 15°C colder than ISA. Local QNH is 983 hPa. What would the true altitude be?

Answer 24

8590 ft

Question 25

Which statement is true?

Answer 25

QNH can be equal to QFE

Question 26

You fly from east to west at the 500 hPa level in the Northern Hemisphere;

Answer 26

if the wind is from the north there will be a gain in altitude

Question 27

You have landed on an airport elevation 1240 ft and QNH 1008 hPa. Your altimeter subscale is erroneously set to 1013 hPa. The indication on the altimeter will be:

Answer 27

1375 ft

Question 28

You are cruising at FL 200, OAT is -40°C, sea level pressure is 1033 hPa. Calculate the true altitude.

Answer 28

19340 ft