Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PPL - NZ > Meterology > Flashcards

Meterology Flashcards

1
Q

1013 mbar is equal to how many inches of mercury?

A

29.92

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How do you convert Fahrenheit to Celsius?

A

-32degr and divide by 1.8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the ISA ‘standard atmosphere’ and how is it measured at sea level?

A

The difference in sea level pressure is measured at 1mbar per 27ft. Simplified to 1mbar per 30ft.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the ISA ‘standard atmosphere’ and how is it measured above 10,000ft?

A

1mbar per 36ft.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is ISA density at sea level?

A

1225g/m3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is QFE?

A

The pressure at an airfield with respect to MSL - this sets the airfield to ‘zero. and gives your altitude above the airfield.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is QNH?

A

The pressure of the airfield above MSL - gives your altitude above MSL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is QNE?

A

This give a standard pressure of 1013mbar - set 1013 on your subscale.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does SALR and DLAR stand for?

A

Saturated adiabatic lapse rate & Dry adiabatic lapse rate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is SALR?

A

Saturated adiabatic lapse rate is 1.5degr Celsius per 1000ft.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is DALR?

A

Dry adiabatic lapse rate is 3degr Celsius per 1000ft.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the difference between turbulence and wind shear?

A
  • Turbulence is disturbed or rough air which disturbs a/c attitude but allows a/c to maintain its flight path.
  • Wind shear will displace a/c abruptly forcing corrective action by the pilot.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is CS cloud?

A

16,500>45,000ft.

Cirro Stratus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is CC cloud?

A

16,500>45,000ft.

Cirro Cumulus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is CI cloud?

A

16,500>45,000ft.

Cirrus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is AS cloud?

A

16,500>23,000ft.

Alto Stratus

17
Q

What is AC cloud?

A

16,500>23,000ft.

Alto Cumulus

18
Q

What is NS cloud?

A

16,500>23,000ft.

Nimbo Stratus

19
Q

What is ST cloud?

A

0>16,500ft.

Stratus

20
Q

What is SC cloud?

A

0>16,500ft.

Strato Cumulus

21
Q

What is CU cloud?

A

0>16,500ft.

Cumulus

22
Q

What is CB cloud?

A

0>16,500ft.

Cumulo Nimbus

23
Q

What is ‘veering’ and ‘backing’ wind?

A
  • Veering wind is changing in a clockwise direction.
  • Backing wind is changing in an anti-clockwise direction

While looking at a clock….
9 to 3 veering quickly, 3 to 9 going back in time.

24
Q

What is the gas make-up of our atmosphere?

A

Oygen = 21%
Nitrogen = 78%
Other gases = 1%

25
Q

What is the lowest, medium and upper regions of our atmosphere?

A

Troposphere = lowest (18km high over the equator and 8km high over the poles)

26
Q

What is a ‘col’?

A

Area between a high and low pressure. The pressure gradient is low and no/little wind occurs.

27
Q

What is “Buys Ballots Law” and how does it relate?

A

If one stands with there back to the wind the area of low pressure will be to your right (in the southern hemisphere).

Because the Coriolis force moves pressure systems in an anti-clockwise direction towards the south pole (away from the equator).

28
Q

What are Katabatic winds?

A 
Are 'down going' winds cause by cold valley floors and east facing walls.
Light winds (usually)
29
Q

What are Anabatic winds?

A

Are ‘up going’ winds cause by warm valley walls heated by solar radiation.
Light winds.

30
Q

What is a FOHN wind?

A

Usually a dry warm wind on the leeward side of a big mountain range, cause by lack of moisture in the air (loss of moisture on the windward side of the mountain).

31
Q

Air masses can be Tr, P, M and C.

What do these mean?

A 
Tr= Tropical (warm and moist air)
P= Polar (cold air)
M= Maritime (moist) 
C= Continental (dry)
32
Q

Met abbr.

What is ‘//’?

A

Weather not detected -sensor inoperative.

33
Q

Met abbr.

What is ‘///’?

A

Cloud is detected - unable to determine TCU/CB

34
Q

Met abbr.

What is ‘////’?

A

Vis. not reported due to faulty sensor

35
Q

Met abbr.

What is ‘/////////’?

A

Cloud not reported - faulty sensor

36
Q

Met abbr.

What is DTRT’?

A

Deteriorating

37
Q

Met abbr.

What is ‘CONS’?

A

Continuous

38
Q

Met abbr.

What is ‘CAVOK’?

A

Cloud and vis. OK

PPL - NZ (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions