Altimeter | Altimetry

Question 1

Pressure =

Answer 1

g x density x height difference

Question 2

1hPa is 27ft only for Met, otherwise it’s __ft.

Answer 2

30

Question 3

Calibrated altitude is the indicated altitude corrected for ___ and ___ error.

Answer 3

instrument, position

Question 4

Transition altitude is specified for an aerodrome by the ___

Answer 4

state in which the airport is located

Question 5

The transition altitude should be as low as possible, rounded to the next ___ft

Answer 5

1000

Question 6

The transition level is FL30 if the QNH is ___ than standard, it will be ___ than that if the QNH is lower than standard.

Answer 6

higher, higher

Question 7

The transition level is determined by the ___

Answer 7

ATS unit

Question 8

The difference between the transition level and altitude is the transition layer, it’s more than __ and less than ___ft

Answer 8

0 500ft

Question 9

Airfield QFE is measured at ___

Answer 9

the highest point of an airfield surface

Question 10

Touchdown QFE is measured at the ___ point

Answer 10

touchdown

Question 11

QNH is QFE reduced to MSL under ___ conditions

Answer 11

ISA

Question 12

QNE is the altimeter reading at the runway threshold with ___ on the subscale

Answer 12

1013.25

Question 13

QNE is used when the subscale does not go low enough to set ___

Answer 13

QFE

Question 14

QFF is QFE reduced to MSL using ___ conditions

Answer 14

actual

Question 15

Converting hPa into Ins can be done using ___

Answer 15

hPa / 1013.25 = ins / 29.92

Question 16

True altitude will only be indicated in __ conditions

Answer 16

ISA

Question 17

Indicated and pressure altitude will be the same in __ conditions

Answer 17

ISA

Question 18

Calibrated altitude is the ___ altitude corrected for airspeed, altitude, imperfect pressure lines.

Answer 18

indicated

Question 19

Absolute altitude is the ____

Answer 19

geometric height above terrain, measured by a radio altimeter

Question 20

Pressure altitude is that indicated with ___ on the subscale

Answer 20

1013

Question 21

Density altitude is pressure altitude corrected for ___ temperature

Answer 21

non-standard

Question 22

Density altitude calculation =

Answer 22

PA +/- ( 118.8 x ISA Deviation )

Question 23

With the altimeter set to QNH, it should read the elevation within ___ for altimeters with a test range of 0-30,000ft, and ___ for altimeters with a test range of 0-50,000ft. This is the same for QFE.

Answer 23

60, 80

Question 24

With both altimeters set to aerodrome QFE, they should indicate within __ft of zero and within __ to __ft of each other.

Answer 24

80 60 80

Question 25

With one set to QFE and the other to QNH, the difference should equal the aerodrome elevation AMSL, to within __ft

Answer 25

80

Question 26

With both set to QNH, the indications should be within __ft of each other and __ft of the elevation

Answer 26

80 80

Question 27

CS25 says that the tolerance for an altimeter at MSL is __ft per 100kts CAS

Answer 27

30