Upper Air Charts and Symbols

Question 1

Significant Weather High, Medium and Low is issued every -

Answer 1

Three hours

Question 2

All prognostic charts use FL except -

Answer 2

SWL, which use ground level

Question 3

In SWL, SFC is used to indicate:

Answer 3

Ground level

Question 4

FL along with either an L or H within a pentagon indicate?

Answer 4

The lowest or highest point of the troposphere

Question 5

Flight level inside a rectangle indicate -

Answer 5

Spot height of the troposhere

Question 6

The upper winds and temperature chart:

Heights are indicated in -

Wind is indicated -

The order of the data from left to right -

Answer 6

Altitude

In degrees true and speed in knots

Altitude, Temperature, Wind direction and speed of the wind.

Question 7

International upper winds and temperature charts display the temperature -

Answer 7

In minus, unless a + is shown

Question 8

Medium level chart height -

High level chart height -

Answer 8

FL100 - FL250

FL250 - FL630

Question 9

All the charts are fixed time charts valid only at the time stated on the chart. These charts are issued at _ hour intervals usually __ - __ hours in advance. Flight in between the validity times will require the pilot to interpolate between consecutive charts.

Answer 9

All the charts are fixed time charts valid only at the time stated on the chart. These charts are issued at 6 hour intervals usually 18 - 24 hours in advance. Flight in between the validity times will require the pilot to interpolate between consecutive charts.