Altimetry

Question 1

If height is being used in a question, what pressure setting should you use?

Answer 1

QFE

Question 2

What travelling from West to east, what FL would you be flying at?

Answer 2

An odd FL

Question 3

When flying from east to west, what FL would you fly at?

Answer 3

An even FL

Question 4

Whats the space between the transition level and the transition altitude called?

Answer 4

Transition layer.

Question 5

What happens to the altitude when QNH > SPS?

Answer 5

It decareses.

Question 6

What happens to the altitude when QNH < SPS?

Answer 6

It increases.

Question 7

If the QNH decreases, what happens to the indicated and true altitude if the QNH isnt updated?

Answer 7

Indicated remains constant whilst the true decreases

Question 8

High to low look out below refers to what to aspects of altimetry?

Answer 8

Pressure and tempurature.

Question 9

What pressure setting do you use when flying cross country?

Answer 9

QNH

Question 10

What percentage difference in true altitude for every 10 degrees of ISA deviation.

Answer 10

4%

Question 11

What is the isa deviation equation?

Answer 11

15-2x(altitude/1000)

Question 12

What does PIT stand for in altimetry?

Answer 12

Press - indicated - true.

Question 13

If the ISA deviation is positive what do you to the Temperature Error Correction.

Answer 13

Add it

Question 14

If the ISA deviation is negative what do you to the Temperature Error Correction.

Answer 14

Minus it.

Question 15

If the ISA deviation is negative what do you to the Temperature Error Correction.

Answer 15

Minus it.

Question 16

Whats the temperature error correction equation?

Answer 16

TEC = height/1000 x 4 x IAS DEVIATION

Question 17

Whilst flying an aircraft at an altitude of 2000 ft, the temperature gradually decreases by 10ºC, what is the expected change to the aircraft’s true altitude?

Answer 17

-80ft

Question 18

You have two pressure systems. System A is a high pressure, system B is a low pressure. What happens to TA when you go from B to A?

Answer 18

Increases.

Question 19

If the QFE, QNH and QFF of an airport have the same value..

Answer 19

The airport is at MSL

Question 20

An aircraft is parked at AB airport with an elevation of 1 411 ft. What altitude should the altimeter indicate if the local QNH setting of 1 023 hPa is set in accordance with the ATIS?

Answer 20

1411ft

Question 21

What is meant by the term “altitude”? The..

Answer 21

Vertical distance from MSL

Question 22

Regarding the aneroid capsule of the altimeter, what pressure is it sensitive to?

Answer 22

Low

Question 23

The atmospheric density is expected to be 50% of the density at MSL in ISA at:

Answer 23

22000ft