Vertical Navigation

Question 1

The altimetre doesnt measure ……

Answer 1

height

Question 2

The altimetre measures ……

Answer 2

the difference between the ambient atmospheric pressure (static pressure) and the reference pressure which has been set on the subscale

Question 3

Atmospheric pressure drops at a rate of …..

Answer 3

1 hpa for every 30ft in height

Question 4

State the rule when setting the QNH for an aircraft that remains at the same level

Answer 4

1. if the subscale readin is increased the main scale will increase
2. If the subscale is decreased then the main scale will also decrease

Question 5

Becasue the height of objects referenced on charts is found in height AMSL the most important thing for a pilot is …..

Answer 5

the QNH at MSL

Question 6

Measureing height above an airfield would be useful for ….. ….. and ….. and is called …..

Answer 6

aerobatics pilots and parachutists and is called QFE

Question 7

An aircrafts height AMSL is reffered to as its …..

Answer 7

altitude

Question 8

The height of a fixed point such as a mountain top or an aerodrome is reffered to as …..

Answer 8

elevation

Question 9

Altitude and elevation are both referenced to …..

Answer 9

MSL

Question 10

To find QFE we …..

Answer 10

Turn the subscale knob so the main scale reads zero

Question 11

For all cross country flights what is always used …..

Answer 11

QNH

Question 12

For the cruise segment of a flight the ….. ….. should be set of a station within …..

Answer 12

local QNH should be set of a station within 100nm

Question 13

If the local QNH is not available for some reason then the ….. ….. should be used

Answer 13

area QNH

Question 14

If the local QNH of the departure aerodrome is not available …..

Answer 14

then set the subscale so the main scale reads the elevation of the field

Question 15

If the local QNH of the destination aerodrome is not available then …..

Answer 15

stay on the area QNH

Question 16

Change to the destination QNH at …..

Answer 16

ToD

Question 17

Aircraft operating above 10,000ft set their altimeters to ….

Answer 17

1013hpa

Question 18

Levels measured with reference to the local/area QNH are known as …..

Answer 18

altitude

Question 19

Levels measured with reference to the 1013 datum are known as …..

Answer 19

flight levels

Question 20

The transition altitude is at …… and is written as …..

Answer 20

10000ft and is written as A100

Question 21

The lowest flight level is …. and is written as …..

Answer 21

FL110

Question 22

On days when the QNH is less than 1013 …..

Answer 22

you cannot cruise at FL110 the minimum is FL115

Question 23

FL115 is not available when the QNH is below

Answer 23

997hpa

Question 24

an aircraft is climbing at 600ftpm with a climbing GS of 90kts.

how far down track will it travel during a climb from 2500ft to 8500ft?

Answer 24

15nm

Question 25

Decent is at 500ftpm from 8500ft to 1500ft AGL with an aerodrome elevation of 1000ft. GS druing the decent is 120kts.

How far from the aerodrome should the decent commence?

Answer 25

24nm

Question 26

A good rule of thumb for decent points is …..

Answer 26

Multiply the number of thousands of feet you want to lose by 5 to get your decent point