CHAPTER 1 ATMOSPHERE

Question 1

What is the thickness of the atmosphere

Answer 1

About 480 km

Question 2

80% of the atmosphere is within

Answer 2

16km

Question 3

It is a poor conductor of

Answer 3

Heat and electricity

Question 4

What gases take upto 99% of the air

Answer 4

NITROGEN and oxygen

Question 5

Ratio by volume in air for nitrogen and oxygen and by weight is

Answer 5

Volume is 4:1
Weight is 3:1

Question 6

More oxygen is needed above how much feet

Answer 6

10000ft or Fl100

Question 7

Upto 80km what is it called and then what is it called

Answer 7

It is called the homosphere and then the heterosphere

Question 8

Upto 80km all the gases are mixed well due to
Except one gas which is

Answer 8

Earths gravitation
Ozone

Question 9

Green house gases

Answer 9

Water vapour,ozone ,co²

Question 10

What happens to WV in increase in height

Answer 10

It decreases

Question 11

What air can hold more WV

Answer 11

Warmer

Question 12

____ %is saturated air and ___% is unsaturated air
Saturated air has ___% RH. __% WV
And unsaturated air will be called

Answer 12

100,99.9
100,4
Dry air

Question 14

Ozone is between ___km to __km and strong in ___km to ___km

Answer 14

10 to 50
20 to 25

Question 15

below km 1/2
km 3/4
km 99%

Answer 15

6
10
35

Question 16

The atmosphere is heated from

Answer 16

Below

Question 17

TEMPERATURE _____ with height ,up to a certain height

Answer 17

Falls

Question 18

sensible heat- conduction convection radtion ___% Latent heat evaporation condanstation and sublimation ___%

Answer 18

23
77

Question 19

What is the lowest layer of the atmosphere
What is the height of the troposphere in equator and at poles

Answer 19

Troposphere
16-18km in equator and 8-10km at poles

Question 20

How is the height of the tropopause determined

Answer 20

Warmer the surface higher the height of the tropopause

Question 21

What is the lapse rate in troposphere

Answer 21

1.98 C°/ 1000ft and 6.5C° / 1km

Question 22

There is a reverse and temperature in the tropopause above

Answer 22

8 km

Question 23

Negative lapse rate

Answer 23

Inversion

Question 25

Lapse rate remain the same

Answer 25

Isothermal

Question 26

____ in tropical weather and ____ in colder weather for the tropopause temperature

Answer 26

Cold Hot

Question 27

Height of stratosphere

Answer 27

Tropopause to 50km

Question 28

What layer is ISO thermal and from what to wjat

Answer 28

Stratosphere is isothermal from 8 to 10km

Question 29

Thereafter , temperature increase slowly and at the top is getting higher ‌ the negative lapse rate happens cause the

Answer 29

UV radiation is absorbed by the ozone layer

Question 30

What clouds are found here

Answer 30

Narcous clouds and mother of pearl

Question 31

The MESOSPHERE extends from

Answer 31

Stratopause to 80km

Question 32

Which layes has the lowest temp

Answer 32

Mesopause which is -90 to -100

Question 33

Layer above 60km is called

Answer 33

Ionosphere

Question 34

Above 700km

Answer 34

EXOSPHERE

Question 35

ISA full form

Answer 35

International standard atmosphere

Question 36

Air is and temp is

Answer 36

Dry 15° at MSL

Question 38

Pressure in isa

Answer 38

1013.25hpa

Question 39

Density in ISA

Answer 39

1225g/m³

Question 40

Acceleration due to gravity

Answer 40

980 cm/s²

Question 41

Lapse rate 0 to 11 km - 11 to 20 km - 20 to 30 km -

Answer 41

1.98C/1000ft or 6.5C/1km -56.5C 1C for every 1 km

Question 42

ISA DEVIATION

Answer 42

Actual -isa value

Question 43

What is jsa

Answer 43

Jet standard atmosphere 2/1000ft No tropopause

Question 44

Troposphere Lt Mt Ut

Answer 44

Surface to 2.1 2.1 to 7.6 7.6 to tropopause

Question 45

Tropical tropause

Answer 45

16 to 16.5 km 35 to 40 lat