Weather reports (20-07-18)

Question 1

out of VHF and HF VOLMETs, which is continuous and which is timed?

Answer 1

HF is timed (long range)

VHF is continuous

Question 2

What information is provided by a VOLMET?

Answer 2

reports of weather for several A/D in the area

Question 3

How is RVR reported?

Answer 3

in metres if less then 5km

Question 4

how is RVR measured?

Answer 4

by obvservation of by using measuring equipment to calcular an instrument RVR

Question 5

Where is RVR measured?

Answer 5

touch down

mid point

stop end

Question 6

Wher can RVR information be found?

Answer 6

it may be included in ATIS

given over the radio by the apporach controller

Question 7

What is the definition of a dry runway?

Answer 7

surface not affected by water, slush, snow or ice

Question 8

What is the definition of a damp runway?

Answer 8

the surface shows a change of colour due to moisture

Question 9

What is the definition of a wet runway?

Answer 9

the surface is soacked but no significant patches of standing water are visible.

standing water is considered to exist when water on the runway surface is >3mm

Question 10

What is the definition of water patches on a runway?

Answer 10

significant patches of standing water are visible on more than 25% of the runway

Question 11

What is the definition of a flooded runway?

Answer 11

extensive patches of standing water are visible on more than 50% of the runway

Question 12

what are the classifications of braking coefficients?

Answer 12

<0.25 - poor

0. 26 - 0.29 - poor to med
1. 3 - 0.35 - med
2. 36 - 0.39 - med to good

>0.4 - good

Question 13

When is braking action measurement unreliable?

Answer 13

in wet snow and slush

Question 14

When should an A/C make routine meteorological air reports?

Answer 14

at ATS reporting points

or

at roughly 1 hour intervals

or

when requested

Question 15

What criteria make an A/C exempt from making routine meteorologial air reports?

Answer 15

flight duration is 2 hours or less

A/C is within an hour of landing

A/C is below 1500m (5000ft)

Question 16

what operational info is required by the operator at a reporting point?

Answer 16

ETA

Endurance

Question 17

What information is given in A/C met reports?

Answer 17

Air temperature

W/V

Turbulence (if appl.)

A/C icing (if appl.)

Question 18

what are the different types of routine reports?

Answer 18

position

operational

Met

Question 19

When will a special air report be made by an A/C?

Answer 19

When any of the following is observed:

Moderate or severe turbulence

Moderate or severe icing

severe mountain wave

thunderstorms (but not isolated)

Heavy dust or sandstorm

volcanic ash cloud

pre eruption activity

hail

CB clouds

Question 20

What is the format of a special air report given by an A/C?

Answer 20

1) A/C identification
2) Position
3) Time
4) FL or Alt
5) Met info prompting the spcial air report