Meteorology | Meteorological Information Interpretation

Question 1

When actual RVR values are outside the measuring range of the observing equipment in use, the following procedures apply:

1. RVR more than 1500m, Code -
2. RVR less than 50m - Code -

Answer 1

1. RVR more than 1500m, Code P
2. RVR less than 50m - Code M

Mnemonic:

Poes ver

Moer naby

Question 2

The U, D or N in a METAR or SPECI report relavent to the visibility and RVR segment mean -

Answer 2

U for increasing visibility

D for decreasing visibility

N for no change

Question 3

Wind on a METAR and SPECI is indicating in -

Answer 3

Degrees True to. the nearest ten

Question 4

On a Significant Weather Chart, hail is represented by symbol:

Answer 4

Upright triangle

Question 5

According to ICAO, which symbol indicates severe icing?

Answer 5

Half circle with three lines

Question 6

What positions are connected with contour lines on the weather chart?

Answer 6

Positions with the same height in a chart of constant pressure

Question 7

On which of the following aviation weather charts can a pilot most easily find a jet stream?

Answer 7

Significant weather chart

Question 8

What information is given on a Significant Weather Chart?

Answer 8

The significant weather forecast for the time given on the chart

Question 9

Normally, temperature readings are taken at a height of ___ in a Stevenson Screen:

Answer 9

4 ft (1.25 m)

Question 10

State the meaning:

1. Isohypse -
2. Contour line -
3. Isobars -
4. Isotachs -

Answer 10

Line of equal height

Line of equal height

Line of equal pressure

Lines joining equal wind speed

Question 11

The validity of a TAF is:

Answer 11

stated in the TAF

Question 12

NOSIG means that no significant change is expected to the reported conditions -

Answer 12

within the next 2 hours

Question 13

When will the surface wind in a METAR record a gust factor?

Answer 13

When gusts are at least 10 knots above the mean wind speed

Question 14

A TREND forecast is valid for ? hours after the time of the observation of the METAR, and constitutes the ? section of the METAR

Answer 14

A TREND forecast is valid for 2 hours after the time of the observation of the METAR, and constitutes the final section of the METAR

Question 15

BECMG indicates that the change in the present weather will be ?. TEMPO, on the other hand, means that the change is temporary, and that the different conditions will prevail for periods of less than ?

Answer 15

BECMG indicates that the change in the present weather will be long-lasting. TEMPO, on the other hand, means that the change is temporary,and that the different conditions will prevail for periods of less than one hour

Question 16

TAFs usually cover a period of between 9 and 30 hours. 9-hour TAFs are issued every ? hours, and 12 to 24-hour TAFs every ? hours.

Answer 16

TAFs usually cover a period of between 9 and 30 hours. 9-hour TAFs are issued every 3 hours, and 12 to 24-hour TAFs every 6 hours.

Question 17

METARs are usually issued every ? during aerodrome operating hours

Answer 17

METARs are usually issued every half hour during aerodrome operating hours

Question 18

What units are used to report vertical wind shear?

Answer 18

kt/100 ft

Question 19

In the METAR code the abbreviation VC indicates:

Answer 19

present weather within a range of 8 km, but not at the airport

Question 20

Is RVR reported in a METAR?

Answer 20

No