Random2

Question 1

The saturation point is also called the dew point. True or False?

Answer 1

True.

Question 2

Where are hygrometers found?

Answer 2

These are found in a white louvered/ventilated box called a Stevenson screen.

Question 3

How is cloud cover measured and the coverage for FEW, SCT, BKN, OVC?

Answer 3

By the amount of cloud which can be seen in the sky.

• Sky clear (SKC) No clouds
• Few (FEW) 1-2 oktas
• Scattered (SCT) 3-4 oktas
• Broken (BKN) 5-7 oktas
• Overcast (OVC) 8 oktas

Question 4

What is mist and fog?

Answer 4

A suspension of very small water droplets in the air reducing the horizontal visibility at the surface of the earth.

Question 5

What is the difference between mist and fog?

Answer 5

Fog -visibility less than 1000 metres.
Mist -visibility 1000 up to 5000 metres.

Question 6

How is mist and fog created?

Answer 6

Both mist and fog are created when the air becomes saturated and water vapour condenses to form droplets that hang in the air.

Question 7

When are mists and fogs more likely to occur?

Answer 7

Air becomes saturated more quickly at lower temperatures, so mists and fogs are more likely when:

a) the air is very humid and/or
b) the air is relatively cool.

Question 8

Dew points indicate the amount moisture in the air. True or False?

Answer 8

True. The higher the dew points, the higher the moisture content of the air at a given temperature.

Question 9

QNH is “normally” higher than QFE. True or false?

Answer 9

True.

Question 10

What is CAVOK?

Answer 10

Clouds and Visibility OK.
A term used when the following MET conditions are all occurring at the same time:
1) Visibility 10km or more
2) Clouds: no clouds of operational significance
3) Weather: no weather of significance to aviation.
4) above conditions occurring simultaneously.

Question 11

What is QNH?

Answer 11

A pressure value that is set on the sub scale of a pressure altimeter so that it reads the aerodrome elevation when the aircraft is on the ground and height above sea level (true altitude.)

Question 12

What does TTPP stand for?

Answer 12

Piarco International.

Question 13

What does RASH mean on the METAR?

Answer 13

Light Rain and Showers

Question 14

What happens when temperature and dew point are the same ?

Answer 14

Clouds and fog begin to form.

Question 15

Dew point temperature can be higher than air temperature. True or false?

Answer 15

False. Dew point temperature is NEVER GREATER than air temperature.