Chapter 7

Question 1

QFE is

Answer 1

Height above ground/ aerodrome level

Question 2

QNH is

Answer 2

Altitude above mean sea level

Question 3

What is standard atmosphere?

Answer 3

+15 degrees Celsius sea level
2 degrees Celsius per 1000ft
1013hPa at sea level
1hPa = 30ft

Question 4

If the air is colder than the standard temperature will the aircraft be higher or lower than indicated altitude?

Answer 4

Lower than indicated altitude

Question 5

If the air is hotter than the standard temperature will the aircraft be higher or lower than indicated altitude?

Answer 5

Higher

Question 6

What are flight levels?

Answer 6

Altitude based on standard pressure setting 1013hPa

Question 7

If an aerodrome is above sea level will the pressure be higher or lower at sea level

Answer 7

Higher at sea level

Question 8

How do you calculate QNH using QFE pressure and the height of the aerodrome?

Answer 8

QNH=

QFE pressure + (height of aerodrome/ 30)

Question 9

Calculate QNH using QFE pressure

Answer 9

(1013hPa- QFE) x30

If QFE is greater than 1013 then pressure altitude will be negative

Question 10

Where do cross country flights take place?

Answer 10

At and below 3000ft amsl

Question 11

What should be the altimeter setting at take off?

Answer 11

Aerodrome QNH (unless doing circuits as QFE may be used)

Question 12

What should be the altimeter setting when cruising on a cross country?

Answer 12

Regional pressure setting.

This should be updated every time you enter a new ASR (altimeter setting region)

Question 13

What should be the altimeter setting on approach to landing?

Answer 13

Aerodrome QFE or QNH

Question 14

What is an ASR?

Answer 14

Altimeter setting region

Question 15

Where do you get the local ASR?

Answer 15

Local air traffic service units provide ASR but if they are busy you must take responsibility for obtaining it from them

Question 16

If you enter an MATZ or controlled airspace what should your altimeter setting be?

Answer 16

You may be requested to set your altimeter to QNH to ensure aircraft separation

Question 17

When should you use flight levels?

Answer 17

After passing the transition altitude. This is usually at 3000ft in the UK but there are a number of exceptions

Question 18

What are the rules for VFR?

Answer 18

No lower than 1000ft above the highest obstacle in a congested area or open assembly of people
No lower than 500ft above water or ground

Question 19

Do you need to calculate a safe altitude for VFR cross country flights

Answer 19

It is not necessary however VFR cross country flights should never go lower than 1200ft amsl unless taking off/ landing